Study on the Characteristics of a Pneumatic Spring with Bellow
The performance of a single-chamber pneumatic spring and a dual-hamber pneumatic spring have much difference．Dynamical models of these to types pneumatic springs were built and the characteristics of them were analyzed in this paper．Based on the theory of engineering thermodynamic,gas state equations were established and the dynamical models were obtained．The results show that：the single-chamber pneumatic spring car be equivalent to three stifiness springs in parallel and the dual-chamber pneumatic spring can be equivalent to a stiffness spring and a damping in series,then connect with three stiffness springs in parallel．The stiffness and natural frequency are main influenced by chamber pressure,effeetive area,volume of the chamber, displacement．The stiffness increases with the chamber pressure increasing and decreases with the volume of the chamber increasing．Such an accurate model for the pneumatic springs would contribute to more effective design or control of vibration isolation systems．
Dynamical model Pneumatic spring Stiffness characteristic
Yanchun Zhong Qingjun Yang Gang Bao
School of Mechanical and Electrical Engineering,Harbin Institute of Technology Harbin,Heilongjiang Province,China
国际会议
海口
英文
370-374
2011-02-22（万方平台首次上网日期，不代表论文的发表时间）