Precision Motion Control of Electrohydraulic Actuators
Kim, Dean Hoon
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Permalink
https://hdl.handle.net/2142/83955
Description
Title
Precision Motion Control of Electrohydraulic Actuators
Author(s)
Kim, Dean Hoon
Issue Date
1997
Doctoral Committee Chair(s)
Tsao, Tsu-Chin
Department of Study
Mechanical Engineering
Discipline
Mechanical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Mechanical
Language
eng
Abstract
2. Nonlinear dynamics of the electrohydraulic actuator are represented by linear periodic models obtained from linearization about nominal input trajectories and output trajectories corresponding to periodic reference trajectories. The correct identification methodology is developed and utilized. The repetitive controllers and feedforward controllers designed from the linear periodic models provide improved tracking performance for the reference trajectories. The appropriate use of variable sampling interval further improves the tracking performance.
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