摘要
对液压支架试验台承受多工况、高循环次数的复杂载荷,对液压支架试验台三维模型进行了单位静应力分析,确定了易疲劳点;用有限元软件Workbench对试验过程中获得的加载曲线进行瞬态分析,得到了各易疲劳点的应力响应;最后运用Palmgren Miner线性疲劳损伤累积法估算疲劳强度。
For the complex and high cycles load working condition of hydraulic support test-bed,in this paper, an unit static stress analyses tested on the 3D model of hydraulic support test-bed and the fatigue point is determined; Based on the load curves obtained in response of the most dangerous points was got by the transi software Workbench;Finally,used the method of Palmgren Mi estimate fatigue strength. ent the loading precess,the fatigue stress analysis method of the finite element ner linear fatigue damage accumulation to
出处
《煤矿机械》
北大核心
2014年第4期36-38,共3页
Coal Mine Machinery
关键词
液压支架试验台
多工况
瞬态分析
疲劳强度
hydraulic support test-bed
complex load
transient analysis
fatigue strength
