同济大学学报（自然科学版）2026，Vol.54Issue(5)：718-724,7.DOI:10.11908/j.issn.0253-374x.25056
动车组运行过程中轴盘连接螺栓载荷规律
Connecting Bolt Loads of Axle Disk During Electric Multiple Units Operation
摘要
Abstract
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.关键词
连接螺栓/轴盘/载荷规律/动车组Key words
connecting bolts/axle disc/load law/electric multiple units分类
交通工程引用本文复制引用
金文伟,田春,黄彪,屈升,刘星宇,张宁..动车组运行过程中轴盘连接螺栓载荷规律[J].同济大学学报（自然科学版）,2026,54(5):718-724,7.基金项目
国家重点研发计划(2021YFB3703803) （2021YFB3703803）
中国国家铁路集团有限公司科技研究开发计划(K2023J050) （K2023J050）
江苏省重点研发计划(BE2022105) （BE2022105）
