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Development of Performance Analysis Program for a Hydraulic Shimmy Damper of Steering System  

이재천 (계명대학교 기계자동차공학부)
정용승 (계명대학교 대학원 기계공학과)
김진홍 (현대기아 연구개발본부 선행해석팀)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.12, no.1, 2004 , pp. 174-183 More about this Journal
Abstract
A program to analyze the performance characteristics of a hydraulic shimmy damper for automotive steering system was developed in this study. Dimensionless mathematical equations of the dynamics of shimmy damper for forward and reverse fluid flows were derived respectively and incorporated into the Simulink models. The program was validated by comparing the results of simulation and experiments for various frequencies of upstream ripple pressures into the damper. Low-pass filter characteristics of the shimmy damper at reverse flow was demonstrated which means that the shimmy damper could alleviate the high speed ripple pressures induced by the unbalance oscillation of tire in vehicle driving. The parameter sensitivity analysis was also conducted to identify the dominant parameters for the damper performance.
Keywords
Shimmy damper; Steering system; Ripple pressure; Short-length orifice; Low pass filter; Parameter sensitivity analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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