A Regenerative Approach to Energy Efficient Hydraulic Vibration Control

Bois, Jonathan Luke du

doi:10.1007/978-3-319-04729-4_17

Cited by 1 publication

(1 citation statement)

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“…The vibrating device is generally a conventional servo valve controlled cylinder system, in which the stability and convergence speed of control methods need continuing research, and the control accuracy requires further improvement. 7 A lot of vibration simulation applications request exerting a constant static force to object firstly and then overlaying a high-frequency dynamic force. 8 Conventional hydraulic vibration actuator universally adopts a set of valve controlled cylinder conducting above applications, and the static force and the dynamic force are produced by the same hydraulic cylinder.…”

Section: Introductionmentioning

confidence: 99%

Design and control of a hydraulic composite actuator for vibration simulation

Xuan

Wang

Liu

2018

Advances in Mechanical Engineering

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A hydraulic composite actuator is developed for vibration simulation. The hydraulic scheme and control principle are introduced and an open-closed-loop iterative learning control method is proposed for control issue. A special composite cylinder controlled by servo valve and proportional relief valve is designed to generate static force with large amplitude and dynamic force with small amplitude but high frequency. The control subsystem for dynamic force is a zero-type system with very high open-loop gain and uncertainty of parameters; therefore, an open-closed-loop proportional-derivative-type iterative learning control scheme is designed to solve this challenging control issue. A principle prototype of this hydraulic has been developed, and the experiments have been designed for this actuator. Different control methods are experimented for verification and comparison, and experiment results have verified practical applicability of this actuator and the superiority of control scheme.

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Section: Introductionmentioning

confidence: 99%