Tutorial on Active Vibration Isolation

Description

High precision applications typically require isolation from floor vibrations and attenuation of vibrations induced by direct disturbances such as moving masses and cooling water turbulence. Passive vibration isolation requires a trade off in rejecting these two types of disturbances, while active vibration isolation does not suffer from this fundamental limitation.

This tutorial provides an introduction to active vibration isolation. First, the need for vibration isolation and the limitations of passive vibration isolation are discussed. This is continued by discussing several well-known active vibration isolation control strategies, their potential and limitations. An intuition of each strategy is given by the (fictitious) mechanical analogy. Basic tools for frequency domain performance analysis are explained in a 1 degree-of freedom (dof) setting, which enables the participant to design or select vibration isolation systems. Extensions to more advanced techniques are outlined and their potential is illustrated by experimental results.

The following topics are covered:

Passive vibration isolation
Frequency domain analysis tools
Active vibration damping by positive position feedback
Skyhook damping and related feedback vibration isolation methods
-Control synthesis from dynamic error budgeting
Disturbance feedforward control for vibration isolation
-Adaptive disturbance feedforward control

Period	4 Nov 2024
Event title	39th ASPE Annual Meeting 2024
Event type	Conference
Conference number	39
Location	Houston, United States, TexasShow on map
Degree of Recognition	International