Title: Research and simulation of piezo hydraulic actuator

Authors: Zheng Li; Zhi-gang Yang; Sheng Li; Jun-wu Kan; Dan Lu

Addresses: College of Mechanical Science and Engineering, Jilin University, Changchun, China; College of Civil Engineering, Jilin Jianzhu University, Jilin, Changchun, China ' College of Mechanical Science and Engineering, Jilin University, Changchun, China ' Chemical Co., Ltd., Liaoning, China ' Institute of Precision Machinery, Zhejiang Normal University Institute of Precision Machinery, Jinhua, Zhejiang, China ' DeGuan Education School, Jilin, Changchun, Tailai Street, China

Abstract: A piezoelectric stack with its large output force and small displacement cannot satisfy the requirement of the opening of the cone valve core of the actual situation. Piezoelectric hydraulic actuator AMESIM model was established, and the influence on the output displacement and the driving force factors related to simulation and analysis was determined. The results show that the area of the piezoelectric stack has no effect on the output displacement of piezoelectric hydraulic actuator, but with the increase of the area of the maximum output of the piezoelectric hydraulic actuator drive led to nonlinear growth. In the simulation range of 0~60 Hz, the former has better vibration suppression effect than the latter. At some frequencies, the body vibration suppression ability can reach 6.4 times that of the latter.

Keywords: piezoelectric generators; variable damping; vibration control; AMESIM simulation; energy collection; piezoelectric actuators; hydraulic actuators; driving force; piezoelectric stack; output displacement; vibration suppression.

DOI: 10.1504/IJAMECHS.2016.079630

International Journal of Advanced Mechatronic Systems, 2016 Vol.7 No.1, pp.13 - 23

Received: 23 Dec 2014
Accepted: 18 Jul 2015

Published online: 04 Oct 2016 *

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