机械制造与自动化2023，Vol.52Issue(6)：54-57,4.DOI:10.19344/j.cnki.issn1671-5276.2023.06.013
抗菱刚度对平车性能的影响研究
Research on Effect of Anti-diamond Stiffness on Performance of Flat Car
张博宁 1王勇 1张胜建 1吕小勇1
作者信息
- 1. 西南交通大学牵引动力国家重点实验室,四川成都 610031
- 折叠
摘要
Abstract
Taking a certain type of flat car exported to Pakistan as the analysis object,designs a dynamic model based on the Simpack dynamics software,simulates and calculates the four working conditions of the new wheel and the worn wheel of the empty car and the heavy car under different anti-diamond stiffness,and analizes its influence on the dynamic performance of the flat car.The results show that the anti-diamond stiffness has little effect on the critical speed of the meandering motion of the new wheel of the empty car.The critical speed of the meandering motion of the other three working conditions generally assumes stepped growth and has the greatest influence on the critical speed of the meandering motion of the heavy vehicle and the new wheel.When the anti-diamond stiffness is lower than 1.5 MN·m/rad,the stability of the wear wheel is poor,the lateral stability of the empty wear wheel in particular.The anti-diamond stiffness has little effect on the pindex of wheel load reduction rate and derailment coefficient,but great influence over the lateral force index of the wheel axle.关键词
平车/抗菱刚度/Simpack/临界速度/平稳性/轮重减载率/脱轨系数/轮轴横向力Key words
flat car/anti-diamond stiffness/Simpack/critical speed/stability/wheel load reduction rate/derailment coefficient/lateral force of wheel and axle分类
信息技术与安全科学引用本文复制引用
张博宁,王勇,张胜建,吕小勇..抗菱刚度对平车性能的影响研究[J].机械制造与自动化,2023,52(6):54-57,4.
