同济大学学报（自然科学版）2013，Vol.41Issue(3)：437-442,6.DOI:10.3969/j.issn.0253-374x.2013.03.021
高速动车组车轮型面多目标优化镟修
Wheel Reprofiling of High-speed EMU Based on Multi-objective Optimization Strategy
摘要
Abstract
A new approach was presented to optimize worn wheel reprofiling of the high-speed electric multiple unit (EMU), and three functions were selected respectively, which were related to the critical velocity of vehicle system dynamics, the contact stress affecting the contact fatigue of wheel-rail wear and the diameter of the nominal rolling circle of a wheel, as the objective functions. The vertical coordinates of control points on the wheel profile curve served as the design variables and their upper and lower values as corresponding additional conditions. The height, thickness and contact angle of the wheel flange as well as the derivative of the wheel profile curve were empolyed as geometric constraint parameters. A model of multidisciplinary optimization was established for wheel reprofiling of highspeed EMU. Subsequently, a comparative study was made. Results show that based on the reprofiling model of multi-objective optimization, the comprehensive performance of a standard wheel profile can be closely obtained without reprofiling the worn wheel to the standard profile, and the amount of wheel reprofiling is reduced and the service life of wheelset is prolonged.关键词
高速动车组/车轮型面/镟修/多目标优化Key words
high-speed electric multiple unit/ wheel profile/ reprofiling/ multi-objective optimization分类
交通工程引用本文复制引用
张宝安,陆正刚,唐辰..高速动车组车轮型面多目标优化镟修[J].同济大学学报（自然科学版）,2013,41(3):437-442,6.基金项目
国家自然科学基金(51175381) （51175381）
