轨道激励频率对转向架摇枕动应力的影响  

Influence of track excitation frequency on dynamic stress of bogie bolster

作　　者：方桂花[1] 李丹[1,2] 齐双强 贾裕祥 郭上 

机构地区：[1]内蒙古科技大学,包头014032 [2]包头北方创业有限责任公司,包头014032

出　　处：《起重运输机械》2018年第3期121-124,共4页Hoisting and Conveying Machinery

摘　　要：采用C80B型敞车弹性体整车模型,以轨道垂向不平顺作为轮轨激扰进行车辆动力学仿真计算,在获得摇枕动态载荷与轨道垂向不平顺激励频率的对应关系的基础上,计算分析了轨道垂向不平顺激励频率对摇枕动应力的影响。研究结果表明,9.25~16.67 m之间的轨道波长对摇枕关键部位最大动应力的影响比较大。In the paper,flexible vehicle model is established for C80B open top wagon.Vertical track irregularity is taken as wheel-rail disturbance for dynamic simulation and calculation of vehicle,and the influence of vertically irregular track excitation frequency on dynamic stress of the bolster is calculated and analyzed based on the correspondence between dynamic load of the bolster and vertically irregular excitation frequency of track.The results indicate that track wavelength between 9.25 and 16.67 m has great impact on the maximum dynamic stress at critical parts of the bolster.

关 键 词：C80B型敞车 转向架摇枕 轨道激励频率 动应力 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]