中文摘要：

液压缸作为液压传动系统关键零部件之一,其动作可靠性直接影响液压系统工作性能好坏。从液压缸可靠性设计出发,基于液压缸组成结构及工作原理,对液压缸主要结构参数进行了设计与强度校核,分析了液压缸运动过程中不同的缓冲状态,并建立了相应的流量方程,基于能量守恒定律建立了液压缸往复运动过程活塞力平衡方程。通过建模仿真求得液压缸运动过程速度-时间特性曲线,分析了不同结构参数下速度-时间特性。

英文摘要：

As one of the key components of hydraulic transmission system, action reliability of hydraulic cylinder directly determines hydraulic system performance. Considering the reliability design of hydraulic cylinder, describing the structure and working principle of the hydraulic cylinder, main structure parameters of hydraulic cylinder are designed and strength is calculated. Moreover, the different of cushion states of hydraulic cylinder motion process are analyzed, the corresponding flow equation is obtained. Based on the law of conservation of energy, building the force balance equation of hydraulic cylinder reciprocating motion process. The velocity-time curves are obtained by modeling and simulation, to analyze the velocity-time on the different structural parameters.