【作者】 周晓坤； 贺茂盛； 高浩； 赵天军； 谢素明； 张强；

【Author】 Zhou Xiaokun;He Maosheng;Gao Hao;Zhao Tianjun;Xie Suming;Zhang Qiang;School of Mechanical Engineering,Dalian Jiaotong University;R &D center of CRRC Qiqihar Rolling Stock Co,Ltd;State Key Laboratory of Traction Power,Southwest Jiaotong University;

【机构】 大连交通大学； 中车齐齐哈尔车辆有限公司； 西南交通大学；

【摘要】 在研究美国六级谱、秦沈谱和郑武谱各自特点的基础上,以时速160公里快捷货车为研究对象,建立多刚体车辆模型和车体为柔性体的刚柔耦合车辆模型,完成两种模型的动力学分析,同时基于整车疲劳振动试验台开展车辆的振动试验。对比美国六级谱激励下,两种模型与整车振动试验的重车平稳性指标,对更为精确的刚柔耦合模型进行8种工况下的动力学性能分析,选取计算结果中的2种典型工况对比研究三种轨道谱对车辆动力学性能的影响,为车辆可靠性分析奠定了基础。更多还原

【Abstract】 Taking the express freight car with a speed of 160 km/h as the research object,a multi-rigid-body car model and a rigid-flexible coupling car model with flexible body are established based on studying the features of United States 6 Spectrum,Qin Shen Spectrum and Zheng Wu Spectrum.Dynamics analyses of two models are completed while the vehicle vibration test is also being carried out.After comparing the riding index of two loaded models under United States 6 Spectrum,dynamics of the more accurate rigid-flexible coupling model under eight load cases are analyzed.Select calculation results of two typical cases to study the effect on car dynamics under different track spectrum,which will lay the foundation of car reliability analysis.更多还原