动车组运行过程中轴盘连接螺栓载荷规律OA
Connecting Bolt Loads of Axle Disk During Electric Multiple Units Operation
精准分析动车组轴盘连接螺栓运行过程承载规律,建立模拟牵引和制动工况的轴盘螺栓承载理论模型,提出轴盘连接螺栓加速旋转和制动过程动态承载规律测试的台架试验和仿真模拟方法.试验测试和仿真结果表明,轴盘加速旋转状态螺栓承受纯弯曲载荷且载荷随速度增加而增大;制动状态下螺栓承受轴向拉伸载荷、径向弯曲载荷和周向弯曲载荷,且载荷随制动初速度、制动温升的增加而增大.
To accurately analyze the load-bearing behavior of axle disc bolts during operation,a theoretical model was established to simulate traction and braking conditions.A combined bench test and simulation method was proposed to investigate the dynamic load-bearing behavior of axle disc bolts during acceleration and braking.Both experimental and simulation results indicate that,during accelerated rotation,the bolts are subjected to pure bending loads,which increase with rotational speed.Under braking conditions,the bolts experience axial tensile loads,as well as radial and circumferential bending loads,all of which increase with the increase of initial braking speed and temperature during braking.
金文伟;田春;黄彪;屈升;刘星宇;张宁
同济大学 交通学院,上海 201804||中车戚墅堰机车车辆工艺研究所股份有限公司,江苏 常州 213025同济大学 交通学院,上海 201804中车戚墅堰机车车辆工艺研究所股份有限公司,江苏 常州 213025西南交通大学 轨道交通运载系统全国重点实验室,四川 成都 610031中车戚墅堰机车车辆工艺研究所股份有限公司,江苏 常州 213025中车戚墅堰机车车辆工艺研究所股份有限公司,江苏 常州 213025
交通工程
连接螺栓轴盘载荷规律动车组
connecting boltsaxle discload lawelectric multiple units
《同济大学学报（自然科学版）》 2026 (5)
718-724,7
国家重点研发计划(2021YFB3703803)中国国家铁路集团有限公司科技研究开发计划(K2023J050)江苏省重点研发计划(BE2022105)
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