摘要
载荷谱是影响动车组安全运行的重要因素,对其系统研究尚不深入。建立CRH3某车型动车组拖车动力学模型,通过仿真分析得到基于京津线的构架主要载荷的载荷时间历程,然后利用雨流统计方法,得到构架主要载荷的载荷谱,并且交叉对比正常工况和各种故障工况下构架的载荷谱,分析了各种故障工况对转向架主要载荷的影响程度关系,对比了直线、曲线和道岔三种线路状况下磨耗前后构架主要载荷的变化。
Load spectrum is an important factor on the safe operation of train-set, but its research didn＇t finish deeply. This paper builds CRH3 train-set trailer car dynamic model, and obtained load time history of the frame＇s primary load by simulation, which based on Beijing-Tianjin line. Then it gets the load spectrum of bogie frame＇s primary load by rain-flow counting method. It compares the load spectrum of normal condition with the load spectrum of fault condition, what＇s more, it analyses the influence degree of fault condition to the primary load of bogie frame. It compares the varying of bogie frame＇s primary load, which is based on the 3 line conditions of straight, curve and switch.
出处
《机械》
2013年第10期22-27,共6页
Machinery
基金
国家自然基金项目:基于检测数据的高速列车服役安全性态评估的关键问题研究(61134002)
"12.5"国家科技支撑计划-更高速度等级动车组转向架关键技术研究及装备研制(四方)(2011BAG10B01)
"12.5"国家科技支撑计划-智能高速列车关键系统技术研究及样车研制(浙大)-智能高速列车系统应用平台(2011BAG05B04-A01)
铁道部科技研究开发计划-高速动车组转向架维修技术和服役可靠性研究(2012J009-A)
