摘要
Based on the well-known quarter car representation of the automobile suspension,this paper deals with the effect of shock absorber outer performance degradation(OPD)on vehicle ride comfort and driving safety.Based on an elastici- ty model of a flat circular plate having a central hole,a program for the determina- tion of shock absorber outer performance(SOP)has been developed. Based on a hy- drodynamic theory,principles for the inter performance design of shock absorbers are presented to ensure expected SOP and the concept of critical velocity for the pre- vention of OPD is studied.By analysing the mechanism of degradation,a method for the elimination of shock absorber degradation is offered for practical structural design,i.e,the structural design of dual-tube gas charge shock absorbers.A good deal of experimental data,are presented to prove the theoreticaly studies.
以车辆悬架1/4车模型为基础,讨论了减振器外特性畸变及其对车辆平顺性和安全性的影响.应用弹性薄板理论提供了减振器外特性设计的通用程序.通过对畸变机理的探讨,提出了减振器防畸变设计原则、消除畸变的方法和双筒充气减振器的结构设计.并提供了试验结果.
