【作者】 陈娟； 王占林； 王少萍；

【Author】 Chen Juan,Wang Zhanlin,Wang Shaoping (School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics,Beijing,China,100083)

【机构】 北京航空航天大学自动化学院机械电子工程系；

【摘要】 对气缸进行加速寿命试验可以大大缩短试验时间,缩短产品开发周期,节约能源,本文选择某系列气缸产品作为受试对象制定了恒定应力加速寿命试验谱。首先分析了气缸的故障模式、故障树和故障机理,气缸主要的故障模式是活塞杆密封圈和活塞密封圈的磨损;然后确定了加速应力为影响气缸寿命的工作应力:流体温度、使用压力及气缸动作频率;最后制定了恒定应力加速寿命试验谱。更多还原

【Abstract】 To implement accelerate life testing for cylinders will greatly decrease testing time, shorten the development period of new products. This paper covers the constant stress accelerate life testing spectrum for some type of pneumatic cylinders. Firstly, the Failure Mode and Effect Analysis (FMEA), Fault Tree Analysis (FTA) and Failure mechanism of cylinders are analyzed. The main failure modes of cylinders are the wear of piston rod parking and piston parking. Then the determined accelerate stress is the stresses that affect the cylinder life as fluid temperature, working pressure and moving frequency. The constant stress life testing spectrum is made in the last更多还原