高速铁道车辆悬挂系统参数化建模、优化与仿真分析  

PARAMETERIZED MODELING,OPTIMIZING AND SIMULATION ANALYSIS OF SUSPENSION SYSTEM FOR HIGH-SPEED RAILWAY VEHICLE

作　　者：廖英英[1] 刘永强[2] 杨绍普[2] 

机构地区：[1]石家庄铁道大学土木工程学院,石家庄050043 [2]石家庄铁道大学机械工程学院,石家庄050043

出　　处：《动力学与控制学报》2013年第3期257-263,共7页Journal of Dynamics and Control

基　　金：国家重点基础研究发展计划(973计划)(2012CB723301);国家自然科学基金(11227201;11202141;11302137;11172182);铁道部重点项目(2011J013-A);河北省自然科学基金(A2013210013);河北省教育厅项目(Z2011228)资助~~

摘　　要：为了协调高速铁道车辆的运动稳定性与曲线通过性能之间的矛盾,本文采用多目标优化方法对一种高速铁道车辆的关键悬挂参数进行了优化处理.采用多体动力学技术建立了某型高速铁道车辆62个自由度的动力学模型,模型考虑了轮轨接触几何非线性、轮轨蠕滑非线性和阻尼非线性等.采用ADAMS-Matlab联合仿真对车辆悬挂系统进行参数化改造,使弹簧刚度和阻尼系数均可调.采用基于遗传算法的多目标优化方法对悬挂参数进行优化,使车辆模型能同时满足3种动力学指标.对比优化前后模型的动力学性能可以发现:模型的运动稳定性和曲线通过性能得到显著提高,虽然运行平稳性有小幅降低,但仍能保持在优良的工作状态.In order to harmonize the conflict between running stability and curve negotiation performance of high- speed railway vehicle, a multi-objective optimization method is adopt to optimize the key parameters of suspension system. A 62-degree freedom high-speed railway vehicle model is built by using multi-body dynamics technology. Various nonlinear factors are considered including nonlinear wheel/rail contact （geometry） , nonlinear wheel/rail creep force vs. ereepage, nonlinear damping forces, etc. The traditional suspension system model of vehicle is parameterized by using ADAMS-Matlab co-simulation method. The stiffness and damping coefficient of the model can be adjusted. The parameters of suspension system are optimized by using multi-objective GA toolbox. The optimization results show that the running stability and curve negotiation performance can be improved greatly. Although the ride comfort performance is decreased slightly, the values can be accepted.

关 键 词：参数化建模 多目标优化 悬挂系统 遗传算法 

分 类 号：U270.33[机械工程—车辆工程]