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Thomas Dehaeze
2023-01-24 13:28:46 +01:00
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content/phdthesis/zuo04_elemen_system_desig_activ_passiv_vibrat_isolat.md
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title = "Element and system design for active and passive vibration isolation"
author = ["Dehaeze Thomas"]
draft = false
ref_author = "Zuo, L."
ref_year = 2004
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Tags
: [Vibration Isolation]({{< relref "vibration_isolation.md" >}})
: [Vibration Isolation]({{< relref "vibration_isolation.md" >}}), [Eddy Current Damping]({{< relref "eddy_current_damping.md" >}})
Reference
: (<a href="#citeproc_bib_item_1">Zuo 2004</a>)
@@ -28,21 +27,47 @@ Year
> They found that coupling from flexible modes is much smaller than in soft active mounts in the load (force) feedback.
> Note that reaction force actuators can also work with soft mounts or hard mounts.
## Passive Vibration Isolation {#passive-vibration-isolation}
### The Role of damping and its practical constructions {#the-role-of-damping-and-its-practical-constructions}
#### Viscous damping {#viscous-damping}
#### Eddy-current damper {#eddy-current-damper}
<a id="figure--fig:zuo04-eddy-current-magnets"></a>
{{< figure src="/ox-hugo/zuo04_eddy_current_magnets.png" caption="<span class=\"figure-number\">Figure 1: </span>(left) Magnetic field and conductor plates assemblies, (right) magnet arrays" >}}
<a id="figure--fig:zuo04-eddy-current-setup"></a>
{{< figure src="/ox-hugo/zuo04_eddy_current_setup.png" caption="<span class=\"figure-number\">Figure 2: </span>Single DoF system damped by eddy current damper" >}}
## Elements and configurations for active vibration systems {#elements-and-configurations-for-active-vibration-systems}
### System architectures {#system-architectures}
<a id="figure--fig:zuo04-piezo-spring-series"></a>
{{< figure src="/ox-hugo/zuo04_piezo_spring_series.png" caption="<span class=\"figure-number\">Figure 1: </span>PZT actuator and spring in series" >}}
<a id="figure--fig:zuo04-voice-coil-spring-parallel"></a>
{{< figure src="/ox-hugo/zuo04_voice_coil_spring_parallel.png" caption="<span class=\"figure-number\">Figure 2: </span>Voice coil actuator and spring in parallel" >}}
{{< figure src="/ox-hugo/zuo04_voice_coil_spring_parallel.png" caption="<span class=\"figure-number\">Figure 1: </span>Voice coil actuator and spring in parallel" >}}
<a id="figure--fig:zuo04-piezo-plant"></a>
{{< figure src="/ox-hugo/zuo04_piezo_plant.png" caption="<span class=\"figure-number\">Figure 3: </span>Transmission from PZT voltage to geophone output" >}}
{{< figure src="/ox-hugo/zuo04_piezo_plant.png" caption="<span class=\"figure-number\">Figure 1: </span>Transmission from PZT voltage to geophone output" >}}
<a id="figure--fig:zuo04-voice-coil-plant"></a>
{{< figure src="/ox-hugo/zuo04_voice_coil_plant.png" caption="<span class=\"figure-number\">Figure 4: </span>Transmission from voice coil voltage to geophone output" >}}
{{< figure src="/ox-hugo/zuo04_voice_coil_plant.png" caption="<span class=\"figure-number\">Figure 1: </span>Transmission from voice coil voltage to geophone output" >}}
## Bibliography {#bibliography}