A Hybrid Adaptive and Robust Control Methodology With Application to Active Vibration Isolation

Another major contribution of this thesis work is the development of new approaches to achieve broad-band active vibration isolation with electrohydraulic actuation. Two new methods, the velocity-tracking approach and the position-tracking approach, are proposed and implemented in a custom-built multiple degree-of-freedom active vibration isolation testbed. These approaches circumvent the fundamental bandwidth limitations associated with traditional force-control approaches, and significantly improve vibration isolation performance achievable by force-control approaches. The effectiveness of the position-tracking approach to selectively isolate different vibration modes in multiple dimensional systems is also demonstrated through simulation studies.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Zhang, Yisheng

Contributors dc:contributor

• Andrew Alleyne

• Engineering, Mechanical

Language dc:language

eng

Identifier

(MiAaPQ)AAI3102012

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/83798