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A Study on the Vehicle Dynamic Characteristic of Displacement Sensitive Shock Absorber  

이춘태 (부산대학교 대학원 지능기계공학과)
곽동훈 (부산대학교 대학원 지능기계공학과)
정봉호 (부산대학교 대학원 지능기계공학과)
이진걸 (부산대학교 기계공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.20, no.1, 2003 , pp. 187-195 More about this Journal
Abstract
The performance of shock absorber is directly related to the car behaviour and performance, both for handling and ride comfort. The displacement sensitive shock absorber has two modes of damping force (i.e. soft and hard) according to the position of piston. In this study, a mathematical nonlinear dynamic model is introduced to predict the performance of displacement sensitive shock absorber. Especially in this paper, the transient zone is considered and the simulation result is well fit with experimental data. And the vehicle dynamic characteristic of displacement sensitive shock absorber is presented using quarter car simulation model. The simulation results of frequency response are compared with passive shock absorber.
Keywords
Shock absorber; Damping force; Displacement sensitive; Stroke dependent; Piston valve; Body valve;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 F. Herr, T. Malin, J. Lane and S. Roth, 'A Shock Absorber Model Using CFD Analysis and Easy5,' SAE International Congress and Exposition, 1999-01-1322
2 John G. Cherng and Tone Ge, John Pipis and Richard Gazala, 'Characterization of Air-Borne Noise of Shock Absorber by Using Acoustics Index Method,' SAE International Congress and Exposition, 1999-01-1838
3 박재우, 주동우, 김영호, '변위감응형 충격흡수기의 연구,' 한국정밀공학회지, 제14권, 제11호, pp. 11-16, 1997   과학기술학회마을
4 조경일, 소상균, '새로운 구조의 스트로크 감응형 댐퍼연구,' 한국자동차공학회논문집, 제7권, 제3호, pp. 294-300, 1999
5 Lang. Harold Harvey, 'A Study of the Characteristics of Automotive Hydraulic Dampers at High Stroking Frequencies,' Ph. D. dissertation, university of michigan, 1977
6 Stefaan W. Duym, Randy Stiens, Gino V. Baron, Koenraad G. Reybrouck, 'Physical Modeling of the Hysteretic Behaviour of Automotive Shock Absorbers,' SAE 970101
7 Koenraad Reybrouck, 'A Nonlinear Parametric Model of an Automotive Shock Absorber,' SAE 940869