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+++
title = "Nanometre-cutting machine using a stewart-platform parallel mechanism"
author = ["Thomas Dehaeze"]
draft = false
+++
Tags
: [Stewart Platforms ]({{< relref "stewart_platforms" >}} ), [Flexible Joints ]({{< relref "flexible_joints" >}} )
Reference
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: < sup id = "bedab298599c84f60236313ebaad2714" >< a class = "reference-link" href = "#furutani04_nanom_cuttin_machin_using_stewar" title = "Katsushi Furutani, Michio Suzuki \& Ryusei Kudoh, Nanometre-Cutting Machine Using a Stewart-Platform Parallel Mechanism, {Measurement Science and Technology}, v(2), 467-474 (2004)." > (Katsushi Furutani {\it et al.}, 2004)</ a ></ sup >
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Author(s)
: Furutani, K., Suzuki, M., & 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)
{{< figure src = "/ox-hugo/furutani04_ctrl_arch.png" > }}
- Isotropic performance (cubic configuration even if not said so)
Possible sources of error:
- position error of the link ends in assembly => 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.
Then, it is fitted with 4th order polynomial and included in the control architecture.
# Bibliography
2020-06-03 22:43:54 +02:00
< a class = "bibtex-entry" id = "furutani04_nanom_cuttin_machin_using_stewar" > Furutani, K., Suzuki, M., & Kudoh, R., *Nanometre-cutting machine using a stewart-platform parallel mechanism* , Measurement Science and Technology, *15(2)* , 467– </ a > [↩ ](#bedab298599c84f60236313ebaad2714 )
