The pilot relief valve enabling the shock absorber to have continuous damping adjustability,is a crucial component of the continuously variable damping shock absorber.And the annular elastic valve plate is a key component that affecting the open-ing degree,pressure and other parameters of the pilot relief valve.To find out the deformation regularity of the annular elastic valve plate and its mechanism of mapping to the opening degree of the pilot relief valve,a mathematical model for the deformation of the annular elastic valve plate,which is conducted by calculating and analyzing under the conditions on the pilot valve opening degree's range of 0～0.25 mm and the valve plate thickness range of 0.1～0.3 mm,was derived.The accuracy of the deformation model was verified,and the changing regularities of the valve opening pressure,inlet pressure,differential pressure for valve hole of pilot relief valve,and opening degree of relief valve were revealed.The curves of relief valve opening pressure,differential pres-sure,and opening degree versus the thickness of annular elastic valve plate were obtained.This provides theoretical guidance for the highly precise design of pilot relief valves and the matching and optimizing of shock absorbers'damping.
关键词
先导溢流阀/圆环型弹性阀片/开度特性/计算流体力学/减振器
Key words
pilot relief valve/annular elastic valve plate/characteristic of opening degree/computational fluid dynamics/shock ab-sorber
维普
万方数据