摘要
针对已有轴箱试验标准未涵盖轴箱体强度校核与分析这一现状,通过比较各构架相关标准的适用范围、载荷类型和工况种类,揭示出EN 13749标准具有包含转向架类型丰富、外载考虑充分、载荷组合方式明确等特点,适于推演应用到轴箱体强度评定中。在标准推演过程中,充分考虑轴箱体与构架的承载方式、大小和种类的差异,合理地确定了轴箱体强度计算的载荷条件与工况组合。最后,以推演的EN 13749标准为指导,完成了对出口某国机车轴箱体的静强度与疲劳强度校核。
According to existing standards for axle-box test not covering check and analysis of axle-box body, application scope, force types, and load cases were compared among several test standards for bogie frames. It was revealed that standard EN 13749 had the characteristics of wide variety of bogie categories, full consideration to loads, and definite method for force combination, which was suitable for extrapolation and application in strength assessment of axle-box body. During the extrapolating process of standard, the difference in force bearing way, magnitude and kinds of loads between axle-box body and frame were fully considered, so that the force types and the load cases were determined for strength calculation of axle-box body reasonably. Furthermore, with the guide of the extrapolated standard EN 13749, static and fatigue strength analysis for the axle-box body of certain exporting locomotive was accomplished.
出处
《机车电传动》
北大核心
2013年第2期38-41,共4页
Electric Drive for Locomotives
基金
国家自然科学基金项目(51275432)
中央高校基本科研业务费专项资金项目(SWJTU 11CX-075)
牵引动力国家重点实验室开放基金项目(2011TPL_T03)
关键词
轴箱体
强度分析
标准推演
有限元计算
EN1374标准
axle-box body
strength analysis
standard extrapolation
finite element calculation
EN 13749
