基于有限元的高速列车车轮多边形磨耗成因分析数据集

研究了中国高速列车车轮多边形磨耗的形成原因，考虑轮对的旋转惯量，建立了高速列车轮对-轨道-盘式制动系统有限元模型. 基于轮轨系统摩擦自激振动的理论，采用有限元复特征值分析法研究了高速列车制动时轮对-轨道-盘式制动系统的稳定性. 研究了饱和的轮轨蠕滑力和盘式制动系统摩擦力耦合作用对车轮多边形磨耗的影响，并调查了轮轨-轨道-盘式制动系统的参数敏感性. 数值模拟结果表明：在饱和的轮轨蠕滑力和盘式制动器摩擦力耦合作用下，轮轨系统的摩擦自激振动导致高速列车车轮多边形磨耗的产生，其导致的21~22阶和23~24阶车轮多边形磨耗占主导地位，这与中国高速列车高阶车轮多边形磨耗最为符合. 饱和的轮轨蠕滑力主要影响较低阶车轮多边形磨耗，盘式制动器摩擦力主要影响较高阶车轮多边形磨耗. 制动压力为13 kN时，车轮多边形磨耗形成的几率最小，发展速度最慢. 过高或者过低的垂向悬挂力均不利于抑制车轮多边形磨耗. 垂向悬挂力为75 kN时，车轮多边形磨耗形成的可能性最小，发展速度最慢.

This study investigates the formation causes of polygonal wear of high-speed train wheels in China. Considering the rotational inertia of wheelsets, a finite element model of the high-speed train wheelset-track-disc brake system is established. Based on the theory of friction-induced self-excited vibration of the wheel-rail system, the stability of the wheelset-track-disc brake system during high-speed train braking is studied using the finite element complex eigenvalue analysis method. The coupling effects of saturated wheel-rail creep forces and disc brake system friction forces on polygonal wheel wear are investigated, and the parameter sensitivity of the wheelset-track-disc brake system is analyzed. The numerical simulation results show that under the coupling action of saturated wheel-rail creep forces and disc brake friction forces, the friction-induced self-excited vibration of the wheel-rail system triggers the occurrence of polygonal wear on high-speed train wheels. The 21st–22nd order and 23rd–24th order polygonal wheel wear induced by this effect are dominant, which best matches the high-order polygonal wheel wear of Chinese high-speed trains. Saturated wheel-rail creep forces mainly affect lower-order polygonal wheel wear, while disc brake friction forces primarily influence higher-order polygonal wheel wear. When the brake pressure is 13 kN, the probability of polygonal wheel wear formation is the lowest, and the development rate is the slowest. Both excessively high and excessively low vertical suspension forces are unfavorable for suppressing polygonal wheel wear. When the vertical suspension force is 75 kN, the probability of polygonal wheel wear formation is the lowest, and the development rate is the slowest.

搜集汇总

背景与挑战

背景概述

该数据集基于有限元方法研究中国高速列车车轮多边形磨耗的成因，通过建立轮对-轨道-盘式制动系统模型，分析摩擦自激振动与饱和蠕滑力、盘式制动器摩擦力的耦合作用对车轮磨耗的影响。研究发现，摩擦自激振动导致21~24阶高阶车轮多边形磨耗占主导，并优化了制动压力和垂向悬挂力参数以最小化磨耗形成几率和速度。数据集包含模拟结果和相关参数，旨在为高速列车车轮维护和安全提供理论依据。