液压泵台架试验加载谱的等效编谱研究  

Research of Method to Compile Equivalent Load Spectrums for Hydraulic Pump Test Bench

作　　者：李莺莺[1] 宫立强 张国胜[1] 王福山[1] 侯超[1] 陈鸿彬[2] 

机构地区：[1]天津工程机械研究院有限公司 [2]吉林大学

出　　处：《工程机械》2017年第8期21-26,共6页Construction Machinery and Equipment

基　　金：国家科技支撑计划项目(2015BAF07B01)

摘　　要：基于实际工况对液压泵进行耐久性台架试验是提高液压泵可靠性的有效试验手段。对液压泵工作载荷进行分析,同时分别考虑液压泵内部的固定部件和旋转部件,得到一种获得等效损伤载荷谱的方法,并采用极值统计方法对时域载荷信号进行外推,获得更长工作时间内的载荷谱。结论认为应用等效冲击载荷谱可以简化液压泵的台架试验,有利于液压泵可靠性的提高。It is an effective means to increase reliability of hydraulic pumps by bench testing their durability under actual conditions. Work load analysis has to be done to the hydraulic pump while considering individual fixing parts and turning parts inside the pump before getting a method to formulate equivalent damage load spectrums. Meanwhile, a method for statistics of extremes has to be done to extrapolate load signals at the time domain to get load spectrums within longer working time. The conclusion sees that equivalent impact load spectrums can be used to simplify the hydraulic pump's bench test and to facilitate reliability increase of the hydraulic pump.

关 键 词：液压泵 载荷谱 等效损伤 试验加载谱 

分 类 号：TH137.51[机械工程—机械制造及自动化]