正交试验法优选高速客车空心轴参数  

Optimization of the Parameters of Hollow Axle for High-Speed Passenger Car by Orthogonal Design

作　　者：汪洪文[1] 朱忠奎[1] 

机构地区：[1]苏州大学城市轨道交通学院,江苏苏州215021

出　　处：《苏州大学学报（工科版）》2011年第6期6-9,共4页Journal of Soochow University Engineering Science Edition (Bimonthly)

基　　金：江苏省自然科学基金资助项目(编号BK2010225)

摘　　要：我国铁路车辆正朝高速、重载方向发展,空心车轴的采用是减轻簧下质量的重要措施,其参数的优化选取在车轴设计中相当关键。针对时速250km/h高速客车空心车轴的参数设计选择,应用正交试验方法,通过分析内孔径、轴颈直径和轴身外径对车轴质量与车轴应力集中的影响,根据直观分析和方差分析计算,一致得出车轴参数设计的最佳组合方案,同时验证轴身外径为关键影响因子。结果表明此正交试验法科学、高效,可应用于车辆轻量化的研究。The railway vehicle is devetoplng towaros mgn-speeu a^u u~,~vy ~, r important means to reduce the non-suspended weight, and parameters selection of the axle is a crucial problem in the design. Parameters of hollow axle used on high speed carriage with max speed 250km/h are obtained by using orthogonal design. Influence of the axle weight and stress concentration includes the inner diameter, shaft diameter and the outer diameter. The best optimal parameters of hollow axle can be obtained by intuitive analysis and variance analysis, and verify the outer diameter of car axle is the key impact factor. Experimental results show that the orthogonal design is scientific and effective and it can used in weight reduction of vehicle.

关 键 词：正交试验法 空心车轴 优化 应力集中 影响因子 

分 类 号：V270.2[航空宇航科学与技术—飞行器设计]