高速变轨距转向架结构优化及动力学性能分析与预测

doi:10.13229/j.cnki.jdxbgxb.20220326

摘要/Abstract

摘要：

提出一种基于小波理论改进三角级数法的轨道不平顺模拟方法，结合建立的7刚体42自由度车辆动力学模型和轮轨接触模型，基于SIMPACK搭建变轨距列车的动力学仿真模型，采用参数试验法对悬挂参数与车轮踏面进行优化设计，对经结构优化的变轨距转向架进行车辆动力学性能预测，车辆的临界速度远高于400 km/h的设计要求，平稳性指标达到标准规定的二级车辆平稳性水平，曲线通过性评价指标均低于安全限值，所开发的变轨距转向架列车具有良好的动力学性能。

关键词: 铁路运输, 变轨距转向架, 车辆动力学, 结构优化, 轨道不平顺, 小波理论

Abstract:

A track irregularity simulation method based on improved triangular series method based on wavelet theory was proposed. Combined with the established 7-rigid-body 42 degrees of freedom vehicle dynamics model and wheel-rail contact model， a dynamic simulation model of variable gauge train was built based on SIMPACK. The suspension parameters and wheel tread were optimized by parameter experiment， and the dynamic performance of the modified gauge bogie was predicted， the critical speed of the vehicle is far higher than the design requirements of 400 km/h， stationarity index reach the standard of secondary vehicle stability level， curve through sexual evaluation indexes is lower than the safety limit， developed by variable gauge bogie train has good dynamic performance.

Key words: railway transportation, variable gauge bogie, vehicle dynamics, structural design, track irregularity, wavelet theory

中图分类号:

U297.9

刘玉梅,盛佳香,庄娇娇,陈熔,赵大龙. 高速变轨距转向架结构优化及动力学性能分析与预测[J]. 吉林大学学报(工学版), 2024, 54(2): 453-460.

Yu-mei LIU,Jia-xiang SHENG,Jiao-jiao ZHUANG,Rong CHEN,Da-long ZHAO. Structural optimization and dynamic characteristics of high⁃speed variable gauge bogie[J]. Journal of Jilin University(Engineering and Technology Edition), 2024, 54(2): 453-460.

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踏面类型	轮缘厚Sd	轮缘高Sh	轮缘综合值qR
S1002	32	28	10.8
LMA	32	28	9.8

S1002/LMA踏面	非线性临界速度（km·h^-1）	垂向平稳性指标	横向平稳性指标
1435 mm（CN60轨）	561/630	2.098/2.084	1.948/1.924
1520 mm（P65轨）	541/626	2.109/2.097	1.955/1.929

S1002/LMA踏面	脱轨系数	轮重减载率	倾覆系数	轮轨力/kN	轮轴力/kN
1435 mm（CN60轨）	0.486/0.504	0.358/0.325	0.236/0.214	37.677/38.198	27.982/28.268
1520 mm（P65轨）	0.513/0.524	0.353/0.338	0.233/0.212	38.062/38.923	30.026/31.124