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http://dx.doi.org/10.5050/KSNVE.2016.26.1.082

Performance Evaluation of a Semi-active Vehicle Suspension Using Piezostack Actuator Valve  

Han, Chulhee (Mechanical Engineering of Inha University)
Yoon, Gun-Ha (Mechanical Engineering of Inha University)
Park, Young-Dai (Mechanical Engineering of Inha University)
Choi, Seung-Bok (Mechanical Engineering of Inha University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.26, no.1, 2016 , pp. 82-88 More about this Journal
Abstract
This paper proposes a new type of semi-active direct-drive valve(DDV) car suspension system using piezoelectric actuator associated with displacement amplifier. As a first step, controllable piezoelectric DDV damper is designed and governing equation of a quarter-vehicle suspension system consisting of sprung mass, spring, tire and the piezostack DDV damper is constructed. After deriving the equations of the motion, in order to control spool displacement and damping force the skyhook controller is designed and applied. The performance evaluation of the proposed semi-active suspension system is conducted with different displacement of spool. Then, the ride comfort analysis is undertaken in time domain with bump road profile.
Keywords
Piezostack Actuator; Vehicle Suspension; Direct-drive Valve; Hydraulic Damper; Semi-active Control;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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