439 lines
36 KiB
XML
439 lines
36 KiB
XML
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<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
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<channel>
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<title>Papers on My digital brain</title>
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<link>/paper/</link>
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<description>Recent content in Papers on My digital brain</description>
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<generator>Hugo -- gohugo.io</generator>
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<language>en</language>
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<atom:link href="/paper/index.xml" rel="self" type="application/rss+xml" />
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<item>
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<title>A new isotropic and decoupled 6-dof parallel manipulator</title>
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<link>/paper/legnani12_new_isotr_decoup_paral_manip/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/legnani12_new_isotr_decoup_paral_manip/</guid>
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<description>Tags Stewart Platforms Reference (Legnani {\it et al.}, 2012) Author(s) Legnani, G., Fassi, I., Giberti, H., Cinquemani, S., &amp; Tosi, D. Year 2012 Concepts of isotropy and decoupling for parallel manipulators isotropy: the kinetostatic properties (same applicable force, same possible velocity, same stiffness) are identical in all directions (e.g. cubic configuration for Stewart platform) decoupling: each DoF of the end effector can be controlled by a single actuator (not the case for the Stewart platform) Example of generated isotropic manipulator (not decoupled).</description>
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</item>
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<item>
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<title>A review of nanometer resolution position sensors: operation and performance</title>
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<link>/paper/fleming13_review_nanom_resol_posit_sensor/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/fleming13_review_nanom_resol_posit_sensor/</guid>
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<description>Tags Position Sensors Reference (Andrew Fleming, 2013) Author(s) Fleming, A. J. Year 2013 Define concise performance metric and provide expressions for errors sources (non-linearity, drift, noise) Review current position sensor technologies and compare their performance Sensor Characteristics Calibration and nonlinearity Usually quoted as a percentage of the fill-scale range (FSR):
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\begin{equation} \text{mapping error (%)} = \pm 100 \frac{\max{}|e_m(v)|}{\text{FSR}} \end{equation}
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With \(e_m(v)\) is the mapping error.</description>
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</item>
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<item>
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<title>A six-axis single-stage active vibration isolator based on stewart platform</title>
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<link>/paper/preumont07_six_axis_singl_stage_activ/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/preumont07_six_axis_singl_stage_activ/</guid>
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<description>Tags Vibration Isolation, Stewart Platforms, Flexible Joints Reference (Preumont {\it et al.}, 2007) Author(s) Preumont, A., Horodinca, M., Romanescu, I., Marneffe, B. d., Avraam, M., Deraemaeker, A., Bossens, F., … Year 2007 Summary:
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Cubic Stewart platform (Figure 3) Provides uniform control capability Uniform stiffness in all directions minimizes the cross-coupling among actuators and sensors of different legs Flexible joints (Figure 2) Piezoelectric force sensors Voice coil actuators Decentralized feedback control approach for vibration isolation Effect of parasitic stiffness of the flexible joints on the IFF performance (Figure 1) The Stewart platform has 6 suspension modes at different frequencies.</description>
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</item>
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<item>
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<title>A soft 6-axis active vibration isolator</title>
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<link>/paper/spanos95_soft_activ_vibrat_isolat/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/spanos95_soft_activ_vibrat_isolat/</guid>
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<description>Tags Stewart Platforms, Vibration Isolation Reference (Spanos {\it et al.}, 1995) Author(s) Spanos, J., Rahman, Z., &amp; Blackwood, G. Year 1995 Stewart Platform (Figure 1):
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Voice Coil Flexible joints (cross-blades) Force Sensors Cubic Configuration
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Figure 1: Stewart Platform
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Total mass of the paylaod: 30kg Center of gravity is 9cm above the geometry center of the mount (cube&rsquo;s center?).
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Limitation of the Decentralized Force Feedback:</description>
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</item>
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<item>
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<title>A survey of control issues in nanopositioning</title>
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<link>/paper/devasia07_survey_contr_issues_nanop/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/devasia07_survey_contr_issues_nanop/</guid>
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<description>Tags :
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Reference (Devasia {\it et al.}, 2007) Author(s) Devasia, S., Eleftheriou, E., &amp; Moheimani, S. R. Year 2007 Talks about Scanning Tunneling Microscope (STM) and Scanning Probe Microscope (SPM) Piezoelectric actuators: Creep, Hysteresis, Vibrations, Modeling errors Interesting analysis about Bandwidth-Precision-Range tradeoffs Control approaches for piezoelectric actuators: feedforward, Feedback, Iterative, Sensorless controls
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Figure 1: Tradeoffs between bandwidth, precision and range
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Bibliography Devasia, S.</description>
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</item>
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<item>
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<title>Active damping based on decoupled collocated control</title>
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<link>/paper/holterman05_activ_dampin_based_decoup_colloc_contr/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/holterman05_activ_dampin_based_decoup_colloc_contr/</guid>
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<description>Tags Active Damping Reference (Holterman &amp; deVries, 2005) Author(s) Holterman, J., &amp; deVries, T. Year 2005 Bibliography Holterman, J., &amp; deVries, T., Active damping based on decoupled collocated control, IEEE/ASME Transactions on Mechatronics, 10(2), 135–145 (2005). http://dx.doi.org/10.1109/tmech.2005.844702 ↩</description>
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</item>
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<item>
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<title>Active isolation and damping of vibrations via stewart platform</title>
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<link>/paper/hanieh03_activ_stewar/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/hanieh03_activ_stewar/</guid>
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<description>Tags Stewart Platforms, Vibration Isolation, Active Damping Reference @phdthesis{hanieh03_activ_stewar, author = {Hanieh, Ahmed Abu}, school = {Universit{'e} Libre de Bruxelles, Brussels, Belgium}, title = {Active isolation and damping of vibrations via Stewart platform}, year = 2003, tags = {parallel robot}, } Author(s) Hanieh, A. A. Year 2003 Bibliography Hanieh, A. A., Active isolation and damping of vibrations via stewart platform (Doctoral dissertation) (2003). Universit{'e} Libre de Bruxelles, Brussels, Belgium, .</description>
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</item>
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<item>
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<title>Active structural vibration control: a review</title>
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<link>/paper/alkhatib03_activ_struc_vibrat_contr/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/alkhatib03_activ_struc_vibrat_contr/</guid>
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<description>Tags :
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Reference (Rabih Alkhatib &amp; Golnaraghi, 2003) Author(s) Alkhatib, R., &amp; Golnaraghi, M. F. Year 2003 Process of designing an active vibration control system Analyze the structure to be controled Obtain an idealized mathematical model with FEM or experimental modal analysis Reduce the model order is necessary Analyze the resulting model: dynamics properties, types of disturbances, &hellip; Quantify sensors and actuators requirements. Decide on their types and location Analyze the impact of the sensors and actuators on the overall dynamic characteristics Specify performance criteria and stability tradeoffs Device of the type of control algorythm to be employed and design a controller to meet the specifications Simulate the resulting controlled system on a computer If the controller does not meet the requirements, adjust the specifications or modify the type of controller Choose hardware and software and integrate the components on a pilot plant Formulate experiments and perform system identification and model updating Implement controller and carry out system test to evaluate the performance Feedback control Active damping The objective is to reduce the resonance peaks of the closed loop transfer function.</description>
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</item>
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<item>
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<title>Advanced motion control for precision mechatronics: control, identification, and learning of complex systems</title>
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<link>/paper/oomen18_advan_motion_contr_precis_mechat/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/oomen18_advan_motion_contr_precis_mechat/</guid>
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<description>Tags Motion Control Reference (Tom Oomen, 2018) Author(s) Oomen, T. Year 2018
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Figure 1: Envisaged developments in motion systems. In traditional motion systems, the control bandwidth takes place in the rigid-body region. In the next generation systemes, flexible dynamics are foreseen to occur within the control bandwidth.
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Bibliography Oomen, T., Advanced motion control for precision mechatronics: control, identification, and learning of complex systems, IEEJ Journal of Industry Applications, 7(2), 127–140 (2018).</description>
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</item>
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<item>
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<title>Advances in internal model control technique: a review and future prospects</title>
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<link>/paper/saxena12_advan_inter_model_contr_techn/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/saxena12_advan_inter_model_contr_techn/</guid>
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<description>Tags Complementary Filters Reference (Sahaj Saxena &amp; YogeshV Hote, 2012) Author(s) Saxena, S., &amp; Hote, Y. Year 2012 Proposed Filter \(F(s)\) \begin{align*} F(s) &amp;= \frac{1}{(\lambda s + 1)^n} \\\
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F(s) &amp;= \frac{n \lambda + 1}{(\lambda s + 1)^n} \end{align*}
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Internal Model Control Central concept in IMC: control can be acheive only if the control system involves, either implicitly or explicitly, some representation of the process to be controlled.</description>
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</item>
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<item>
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<title>An exploration of active hard mount vibration isolation for precision equipment</title>
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<link>/paper/poel10_explor_activ_hard_mount_vibrat/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/poel10_explor_activ_hard_mount_vibrat/</guid>
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<description>Tags Vibration Isolation Reference @phdthesis{poel10_explor_activ_hard_mount_vibrat, author = {van der Poel, Gerrit Wijnand}, doi = {10.3990/1.9789036530163}, isbn = {978-90-365-3016-3}, school = {University of Twente}, title = {An Exploration of Active Hard Mount Vibration Isolation for Precision Equipment}, url = {https://doi.org/10.3990/1.9789036530163}, year = 2010, year = 2010, tags = {parallel robot}, } Author(s) van der Poel, G. W. Year 2010 Bibliography van der Poel, G. W., An exploration of active hard mount vibration isolation for precision equipment (Doctoral dissertation) (2010).</description>
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</item>
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<item>
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<title>An instrument for 3d x-ray nano-imaging</title>
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<link>/paper/holler12_instr_x_ray_nano_imagin/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/holler12_instr_x_ray_nano_imagin/</guid>
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<description>Tags Nano Active Stabilization System, Positioning Stations Reference (Holler {\it et al.}, 2012) Author(s) Holler, M., Raabe, J., Diaz, A., Guizar-Sicairos, M., Quitmann, C., Menzel, A., &amp; Bunk, O. Year 2012 Instrument similar to the NASS. Obtain position stability of 10nm (standard deviation).
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Figure 1: Schematic of the tomography setup
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Limited resolution due to instrumentation: The resolution of ptychographic tomography remains above 100nm due to instabilities and drifts of the scanning systems.</description>
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</item>
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<item>
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<title>An intelligent control system for multiple degree-of-freedom vibration isolation</title>
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<link>/paper/geng95_intel_contr_system_multip_degree/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/geng95_intel_contr_system_multip_degree/</guid>
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<description>Tags Stewart Platforms, Vibration Isolation Reference (Jason Geng {\it et al.}, 1995) Author(s) Geng, Z. J., Pan, G. G., Haynes, L. S., Wada, B. K., &amp; Garba, J. A. Year 1995
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Figure 1: Local force feedback and adaptive acceleration feedback for active isolation
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Bibliography Geng, Z. J., Pan, G. G., Haynes, L. S., Wada, B. K., &amp; Garba, J. A., An intelligent control system for multiple degree-of-freedom vibration isolation, Journal of Intelligent Material Systems and Structures, 6(6), 787–800 (1995).</description>
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</item>
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<item>
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<title>Automated markerless full field hard x-ray microscopic tomography at sub-50 nm 3-dimension spatial resolution</title>
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<link>/paper/wang12_autom_marker_full_field_hard/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/wang12_autom_marker_full_field_hard/</guid>
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<description>Tags Nano Active Stabilization System Reference (Jun Wang {\it et al.}, 2012) Author(s) Wang, J., Chen, Y. K., Yuan, Q., Tkachuk, A., Erdonmez, C., Hornberger, B., &amp; Feser, M. Year 2012 Introduction of Markers: That limits the type of samples that is studied
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There is a need for markerless nano-tomography =&gt; the key requirement is the precision and stability of the positioning stages.
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Passive rotational run-out error system: It uses calibrated metrology disc and capacitive sensors</description>
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</item>
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<item>
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<title>Comparison and classification of high-precision actuators based on stiffness influencing vibration isolation</title>
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<link>/paper/ito16_compar_class_high_precis_actuat/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/ito16_compar_class_high_precis_actuat/</guid>
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<description>Tags Vibration Isolation, Actuators Reference (Shingo Ito &amp; Georg Schitter, 2016) Author(s) Ito, S., &amp; Schitter, G. Year 2016 Classification of high-precision actuators Table 1: Zero/Low and High stiffness actuators Categories Pros Cons Zero stiffness No vibration transmission Large and Heavy Low stiffness High vibration isolation Typically for low load High Stiffness High control bandwidth High vibration transmission Time Delay of Piezoelectric Electronics In this paper, the piezoelectric actuator/electronics adds a time delay which is much higher than the time delay added by the voice coil/electronics.</description>
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</item>
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<item>
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<title>Control of spacecraft and aircraft</title>
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<link>/paper/bryson93_contr_spacec_aircr/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/bryson93_contr_spacec_aircr/</guid>
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<description>Tags HAC-HAC Reference (Bryson, 1993) Author(s) Bryson, A. E. Year 1993 9.2.3 Roll-Off Filters Synthesizing control logic using only one vibration mode means we are consciously neglecting the higher-order vibration modes. When doing this, it is a good idea to insert &ldquo;roll-off&rdquo; into the control logic, so that the loop-transfer gain decreases rapidly with frequency beyond the control bandwidth. This reduces the possibility of destabilizing the unmodelled higher frequency dynamics (&quot;spillover&quot;).</description>
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</item>
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<item>
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<title>Decentralized vibration control of a voice coil motor-based stewart parallel mechanism: simulation and experiments</title>
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<link>/paper/tang18_decen_vibrat_contr_voice_coil/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/tang18_decen_vibrat_contr_voice_coil/</guid>
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<description>Tags Stewart Platforms Reference (Jie Tang {\it et al.}, 2018) Author(s) Tang, J., Cao, D., &amp; Yu, T. Year 2018 Bibliography Tang, J., Cao, D., &amp; Yu, T., Decentralized vibration control of a voice coil motor-based stewart parallel mechanism: simulation and experiments, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 233(1), 132–145 (2018). http://dx.doi.org/10.1177/0954406218756941 ↩</description>
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</item>
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<item>
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<title>Design for precision: current status and trends</title>
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<link>/paper/schellekens98_desig_precis/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/schellekens98_desig_precis/</guid>
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<description>Tags Precision Engineering Reference (Schellekens {\it et al.}, 1998) Author(s) Schellekens, P., Rosielle, N., Vermeulen, H., Vermeulen, M., Wetzels, S., &amp; Pril, W. Year 1998 Bibliography Schellekens, P., Rosielle, N., Vermeulen, H., Vermeulen, M., Wetzels, S., &amp; Pril, W., Design for precision: current status and trends, Cirp Annals, (2), 557–586 (1998). http://dx.doi.org/10.1016/s0007-8506(07)63243-0 ↩</description>
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</item>
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<item>
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<title>Dynamic modeling and decoupled control of a flexible stewart platform for vibration isolation</title>
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<link>/paper/yang19_dynam_model_decoup_contr_flexib/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/yang19_dynam_model_decoup_contr_flexib/</guid>
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<description>Tags Stewart Platforms, Vibration Isolation, Flexible Joints, Cubic Architecture Reference (Yang {\it et al.}, 2019) Author(s) Yang, X., Wu, H., Chen, B., Kang, S., &amp; Cheng, S. Year 2019 Discusses:
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flexible-rigid model of Stewart platform the impact of joint stiffness is compensated using a displacement sensor and a force sensor then the MIMO system is decoupled in modal space and 6 SISO controllers are applied for vibration isolation using force sensors The joint stiffness impose a limitation on the control performance using force sensors as it adds a zero at low frequency in the dynamics.</description>
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</item>
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<item>
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<title>Dynamic modeling and experimental analyses of stewart platform with flexible hinges</title>
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<link>/paper/jiao18_dynam_model_exper_analy_stewar/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/jiao18_dynam_model_exper_analy_stewar/</guid>
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<description>Tags Stewart Platforms, Flexible Joints Reference (Jian Jiao {\it et al.}, 2018) Author(s) Jiao, J., Wu, Y., Yu, K., &amp; Zhao, R. Year 2018 Bibliography Jiao, J., Wu, Y., Yu, K., &amp; Zhao, R., Dynamic modeling and experimental analyses of stewart platform with flexible hinges, Journal of Vibration and Control, 25(1), 151–171 (2018). http://dx.doi.org/10.1177/1077546318772474 ↩</description>
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</item>
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<item>
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<title>Estimating the resolution of nanopositioning systems from frequency domain data</title>
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<link>/paper/fleming12_estim/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/fleming12_estim/</guid>
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<description>Tags :
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Reference (Andrew Fleming, 2012) Author(s) Fleming, A. J. Year 2012 Bibliography Fleming, A. J., Estimating the resolution of nanopositioning systems from frequency domain data, In , 2012 IEEE International Conference on Robotics and Automation (pp. ) (2012). : . ↩</description>
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</item>
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<item>
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<title>Force feedback versus acceleration feedback in active vibration isolation</title>
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<link>/paper/preumont02_force_feedb_versus_accel_feedb/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/preumont02_force_feedb_versus_accel_feedb/</guid>
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<description>Tags Vibration Isolation Reference (Preumont {\it et al.}, 2002) Author(s) Preumont, A., A. Francois, Bossens, F., &amp; Abu-Hanieh, A. Year 2002 Summary:
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Compares the force feedback and acceleration feedback for active damping The use of a force sensor always give alternating poles and zeros in the open-loop transfer function between for force actuator and the force sensor which guarantees the stability of the closed loop Acceleration feedback produces alternating poles and zeros only when the flexible structure is stiff compared to the isolation system The force applied to a rigid body is proportional to its acceleration, thus sensing the total interface force gives a measured of the absolute acceleration of the solid body.</description>
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</item>
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<item>
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<title>Guidelines for the selection of weighting functions for h-infinity control</title>
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<link>/paper/bibel92_guidel_h/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/bibel92_guidel_h/</guid>
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<description>Tags H Infinity Control Reference (Bibel &amp; Malyevac, 1992) Author(s) Bibel, J. E., &amp; Malyevac, D. S. Year 1992 Properties of feedback control
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Figure 1: Control System Diagram
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From the figure 1, we have:
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\begin{align*} y(s) &amp;= T(s) r(s) + S(s) d(s) - T(s) n(s)\\\
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e(s) &amp;= S(s) r(s) - S(s) d(s) - S(s) n(s)\\\
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u(s) &amp;= S(s)K(s) r(s) - S(s)K(s) d(s) - S(s)K(s) n(s) \end{align*}</description>
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</item>
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<item>
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<title>Identification and decoupling control of flexure jointed hexapods</title>
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<link>/paper/chen00_ident_decoup_contr_flexur_joint_hexap/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/chen00_ident_decoup_contr_flexur_joint_hexap/</guid>
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<description>Tags Stewart Platforms, Flexible Joints Reference (Yixin Chen &amp; McInroy, 2000) Author(s) Chen, Y., &amp; McInroy, J. Year 2000 Bibliography Chen, Y., &amp; McInroy, J., Identification and decoupling control of flexure jointed hexapods, In , Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065) (pp. ) (2000). : . ↩</description>
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</item>
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<item>
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<title>Implementation challenges for multivariable control: what you did not learn in school!</title>
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<link>/paper/garg07_implem_chall_multiv_contr/</link>
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<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
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<guid>/paper/garg07_implem_chall_multiv_contr/</guid>
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<description>Tags Multivariable Control Reference (Sanjay Garg, 2007) Author(s) Garg, S. Year 2007 Discusses:
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When to use multivariable control and when not to? Two major issues with implementing multivariable control: gain scheduling and integrator wind up protection Inline simple gain and phase margin measured for SISO, &ldquo;robustness&rdquo; determination of multivariable control requires complex analyses using singular value techniques and Monte Carlo simulations.
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When to use multivariable control:</description>
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</item>
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<item>
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<title>Interferometric characterization of rotation stages for x-ray nanotomography</title>
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<link>/paper/stankevic17_inter_charac_rotat_stages_x_ray_nanot/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/stankevic17_inter_charac_rotat_stages_x_ray_nanot/</guid>
|
||
<description>Tags Nano Active Stabilization System, Positioning Stations Reference (Tomas Stankevic {\it et al.}, 2017) Author(s) Stankevic, T., Engblom, C., Langlois, F., Alves, F., Lestrade, A., Jobert, N., Cauchon, G., … Year 2017 Similar Station than the NASS Similar Metrology with fiber based interferometers and cylindrical reference mirror
|
||
Figure 1: Positioning Station
|
||
Thermal expansion: Stabilized down to \(5mK/h\) using passive water flow through the baseplate below the sample stage and in the interferometry reference frame.</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Investigation on active vibration isolation of a stewart platform with piezoelectric actuators</title>
|
||
<link>/paper/wang16_inves_activ_vibrat_isolat_stewar/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/wang16_inves_activ_vibrat_isolat_stewar/</guid>
|
||
<description>Tags Stewart Platforms, Vibration Isolation, Flexible Joints Reference (Wang {\it et al.}, 2016) Author(s) Wang, C., Xie, X., Chen, Y., &amp; Zhang, Z. Year 2016 Model of the Stewart platform:
|
||
Struts are treated as flexible beams Payload and the base are treated as flexible plates The FRF synthesis method permits to derive FRFs of the Stewart platform The model is compared with a Finite Element model and is shown to give the same results.</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Measurement technologies for precision positioning</title>
|
||
<link>/paper/gao15_measur_techn_precis_posit/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/gao15_measur_techn_precis_posit/</guid>
|
||
<description>Tags Position Sensors Reference (Gao {\it et al.}, 2015) Author(s) Gao, W., Kim, S., Bosse, H., Haitjema, H., Chen, Y., Lu, X., Knapp, W., … Year 2015 Bibliography Gao, W., Kim, S., Bosse, H., Haitjema, H., Chen, Y., Lu, X., Knapp, W., …, Measurement technologies for precision positioning, CIRP Annals, 64(2), 773–796 (2015). http://dx.doi.org/10.1016/j.cirp.2015.05.009 ↩</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Nanometre-cutting machine using a stewart-platform parallel mechanism</title>
|
||
<link>/paper/furutani04_nanom_cuttin_machin_using_stewar/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/furutani04_nanom_cuttin_machin_using_stewar/</guid>
|
||
<description>Tags Stewart Platforms, Flexible Joints Reference (Katsushi Furutani {\it et al.}, 2004) Author(s) Furutani, K., Suzuki, M., &amp; Kudoh, R. Year 2004 Lever mechanism to amplify the motion of piezoelectric stack actuators Use of flexure joints Eddy current displacement sensors for control (decentralized) Isotropic performance (cubic configuration even if not said so) Possible sources of error:
|
||
position error of the link ends in assembly =&gt; simulation of position error and it is not significant Inaccurate modelling of the links insufficient generative force unwanted deformation of the links To minimize the errors, a calibration is done between the required leg length and the wanted platform pose.</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Nanopositioning system with force feedback for high-performance tracking and vibration control</title>
|
||
<link>/paper/fleming10_nanop_system_with_force_feedb/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/fleming10_nanop_system_with_force_feedb/</guid>
|
||
<description>Tags Sensor Fusion, Force Sensors Reference (Fleming, 2010) Author(s) Fleming, A. Year 2010 Summary:
|
||
The noise generated by a piezoelectric force sensor is much less than a capacitive sensor Dynamical model of a piezoelectric stack actuator and piezoelectric force sensor Noise of a piezoelectric force sensor IFF with a piezoelectric stack actuator and piezoelectric force sensor A force sensor is used as a displacement sensor below the frequency of the first zero Sensor fusion architecture with a capacitive sensor and a force sensor and using complementary filters Virtual sensor fusion architecture (called low-frequency bypass) Analog implementation of the control strategies to avoid quantization noise, finite resolution and sampling delay Model of a multi-layer monolithic piezoelectric stack actuator</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Nanopositioning with multiple sensors: a case study in data storage</title>
|
||
<link>/paper/sebastian12_nanop_with_multip_sensor/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/sebastian12_nanop_with_multip_sensor/</guid>
|
||
<description>Tags Sensor Fusion Reference (Abu Sebastian &amp; Angeliki Pantazi, 2012) Author(s) Sebastian, A., &amp; Pantazi, A. Year 2012 Bibliography Sebastian, A., &amp; Pantazi, A., Nanopositioning with multiple sensors: a case study in data storage, IEEE Transactions on Control Systems Technology, 20(2), 382–394 (2012). http://dx.doi.org/10.1109/tcst.2011.2177982 ↩</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Position control in lithographic equipment</title>
|
||
<link>/paper/butler11_posit_contr_lithog_equip/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/butler11_posit_contr_lithog_equip/</guid>
|
||
<description>Tags Multivariable Control, Positioning Stations Reference (Hans Butler, 2011) Author(s) Butler, H. Year 2011 Bibliography Butler, H., Position control in lithographic equipment, IEEE Control Systems, 31(5), 28–47 (2011). http://dx.doi.org/10.1109/mcs.2011.941882 ↩</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Review of active vibration isolation strategies</title>
|
||
<link>/paper/collette11_review_activ_vibrat_isolat_strat/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/collette11_review_activ_vibrat_isolat_strat/</guid>
|
||
<description>Tags Vibration Isolation Reference (Christophe Collette {\it et al.}, 2011) Author(s) Collette, C., Janssens, S., &amp; Artoos, K. Year 2011 Background and Motivations Passive Isolation Tradeoffs \[ X(s) = \underbrace{\frac{cs + k}{ms^2 + cs + k}}_{T_{wx}(s)} W(s) + \underbrace{\frac{1}{ms^2 + cs + k}}_{T_{Fx}(s)} F(s) \]
|
||
\(T_{wx}(s)\) is called the transmissibility of the isolator. It characterize the way seismic vibrations \(w\) are transmitted to the equipment. \(T_{Fx}(s)\) is called the compliance.</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Sensor fusion for active vibration isolation in precision equipment</title>
|
||
<link>/paper/tjepkema12_sensor_fusion_activ_vibrat_isolat_precis_equip/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/tjepkema12_sensor_fusion_activ_vibrat_isolat_precis_equip/</guid>
|
||
<description>Tags Sensor Fusion, Vibration Isolation Reference (Tjepkema {\it et al.}, 2012) Author(s) Tjepkema, D., Dijk, J. v., &amp; Soemers, H. Year 2012 Relative motion Control Control law: \(f = -G(x-w)\)
|
||
\[ \frac{x}{w} = \frac{k+G}{ms^2 + k+G} \] \[ \frac{x}{F} = \frac{1}{ms^2 + k+G} \]
|
||
Force Control Control law: \(f = -G F_a = -G \left(f-k(x-w)\right)\)
|
||
\[ \frac{x}{w} = \frac{k}{(1+G)ms^2 + k} \] \[ \frac{x}{F} = \frac{1+G}{(1+G)ms^2 + k} \]</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Sensor fusion methods for high performance active vibration isolation systems</title>
|
||
<link>/paper/collette15_sensor_fusion_method_high_perfor/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/collette15_sensor_fusion_method_high_perfor/</guid>
|
||
<description>Tags Sensor Fusion, Vibration Isolation Reference (Collette &amp; Matichard, 2015) Author(s) Collette, C., &amp; Matichard, F. Year 2015 In order to have good stability margins, it is common practice to collocate sensors and actuators. This ensures alternating poles and zeros along the imaginary axis. Then, each phase lag introduced by the poles is compensed by phase leag introduced by the zeroes. This guarantees stability and such system is referred to as hyperstable.</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Sensors and control of a space-based six-axis vibration isolation system</title>
|
||
<link>/paper/hauge04_sensor_contr_space_based_six/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/hauge04_sensor_contr_space_based_six/</guid>
|
||
<description>Tags Stewart Platforms, Vibration Isolation, Cubic Architecture Reference (Hauge &amp; Campbell, 2004) Author(s) Hauge, G., &amp; Campbell, M. Year 2004 Discusses:
|
||
Choice of sensors and control architecture Predictability and limitations of the system dynamics Two-Sensor control architecture Vibration isolation using a Stewart platform Experimental comparison of Force sensor and Inertial Sensor and associated control architecture for vibration isolation
|
||
Figure 1: Hexapod for active vibration isolation</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Simultaneous vibration isolation and pointing control of flexure jointed hexapods</title>
|
||
<link>/paper/li01_simul_vibrat_isolat_point_contr/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/li01_simul_vibrat_isolat_point_contr/</guid>
|
||
<description>Tags Stewart Platforms, Vibration Isolation Reference (Xiaochun Li {\it et al.}, 2001) Author(s) Li, X., Hamann, J. C., &amp; McInroy, J. E. Year 2001 if the hexapod is designed such that the payload mass/inertia matrix (\(M_x\)) and \(J^T J\) are diagonal, the dynamics from \(u\) to \(y\) are decoupled. Bibliography Li, X., Hamann, J. C., &amp; McInroy, J. E., Simultaneous vibration isolation and pointing control of flexure jointed hexapods, In , Smart Structures and Materials 2001: Smart Structures and Integrated Systems (pp.</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Simultaneous, fault-tolerant vibration isolation and pointing control of flexure jointed hexapods</title>
|
||
<link>/paper/li01_simul_fault_vibrat_isolat_point/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/li01_simul_fault_vibrat_isolat_point/</guid>
|
||
<description>Tags Stewart Platforms, Vibration Isolation, Cubic Architecture, Flexible Joints, Multivariable Control Reference @phdthesis{li01_simul_fault_vibrat_isolat_point, author = {Li, Xiaochun}, school = {University of Wyoming}, title = {Simultaneous, Fault-tolerant Vibration Isolation and Pointing Control of Flexure Jointed Hexapods}, year = 2001, tags = {parallel robot}, } Author(s) Li, X. Year 2001 Introduction Stewart Platform:
|
||
Cubic (mutually orthogonal) Flexure Joints =&gt; eliminate friction and backlash but add complexity to the dynamics</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Six dof active vibration control using stewart platform with non-cubic configuration</title>
|
||
<link>/paper/zhang11_six_dof/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/zhang11_six_dof/</guid>
|
||
<description>Tags Stewart Platforms, Vibration Isolation Reference (Zhen Zhang {\it et al.}, 2011) Author(s) Zhang, Z., Liu, J., Mao, J., Guo, Y., &amp; Ma, Y. Year 2011 Non-cubic stewart platform Flexible joints Magnetostrictive actuators Strong coupled motions along different axes Non-cubic architecture =&gt; permits to have larger workspace which was required Structure parameters (radius of plates, length of struts) are determined by optimization of the condition number of the Jacobian matrix Accelerometers for active isolation Adaptive FIR filters for active isolation control</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Studies on stewart platform manipulator: a review</title>
|
||
<link>/paper/furqan17_studies_stewar_platf_manip/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/furqan17_studies_stewar_platf_manip/</guid>
|
||
<description>Tags Stewart Platforms Reference (Mohd Furqan {\it et al.}, 2017) Author(s) Furqan, M., Suhaib, M., &amp; Ahmad, N. Year 2017 Lots of references.
|
||
Bibliography Furqan, M., Suhaib, M., &amp; Ahmad, N., Studies on stewart platform manipulator: a review, Journal of Mechanical Science and Technology, 31(9), 4459–4470 (2017). http://dx.doi.org/10.1007/s12206-017-0846-1 ↩</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>The stewart platform manipulator: a review</title>
|
||
<link>/paper/dasgupta00_stewar_platf_manip/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/dasgupta00_stewar_platf_manip/</guid>
|
||
<description>Tags Stewart Platforms Reference (Bhaskar Dasgupta &amp; Mruthyunjaya, 2000) Author(s) Dasgupta, B., &amp; Mruthyunjaya, T. Year 2000
|
||
Table 1: Parallel VS serial manipulators Advantages Disadvantages Serial Manoeuverability Poor precision Large workspace Bends under high load Vibrate at high speed Parallel High stiffness Small workspace Good dynamic performances Precise positioning The generalized Stewart platforms consists of two rigid bodies (referred to as the base and the platoform) connected through six extensible legs, each with sherical joints at both ends.</description>
|
||
</item>
|
||
|
||
<item>
|
||
<title>Vibration control of flexible structures using fusion of inertial sensors and hyper-stable actuator-sensor pairs</title>
|
||
<link>/paper/collette14_vibrat/</link>
|
||
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
|
||
|
||
<guid>/paper/collette14_vibrat/</guid>
|
||
<description>Tags Vibration Isolation, Sensor Fusion Reference (Collette &amp; Matichard, 2014) Author(s) Collette, C., &amp; Matichard, F. Year 2014 Introduction Sensor fusion is used to combine the benefits of different types of sensors:
|
||
Relative sensor for DC positioning capability at low frequency Inertial sensors for isolation at high frequency Force sensor / collocated sensor to improve the robustness Different types of sensors In this paper, three types of sensors are used.</description>
|
||
</item>
|
||
|
||
</channel>
|
||
</rss> |