摘要
针对高速列车车体结构轻量化设计和车体抗疲劳性能问题,提出了如何利用18比例车体结构振动试验台进行模态试验和车体结构等效性研究。首先,该方法主要阐述了如何建立比例车体试验台,以及设计和分析了振动试验台的结构;其次,建立了比例车体试验台的物理力学模型和数学模型,通过有限元分析方法对车体关键结构位置进行了对比分析研究。该研究表明通过比例车体试验台的设计可以有效地针对车体结构轻量化设计和抗疲劳性能之间的关系进行深入研究,具有重要的工程研究价值。
For the issue of lightweight design of the body structure of the high-speed train and equivalent characteristics of the carbody, putting forward how to take advantage of the 1 ： 8 ratio of the body structure vibration for modal testing and bi0equivalence studies. Firstly, the method explains how to establish the scale of carbody test rig, as well as the design and analysis of the structure of the vi- bration test stand; Secondly, a proportion of the body＇s physical and mechanical test rig and mathematical models, finite element analy- sis on the body position of critical structures were compared with analysis. The study showed that the proportion of the body through the test bench is designed to effectively target the lightweight body structure design and the relationship between fatigue resistance depth study has important research value engineering.
出处
《铁道机车车辆》
2013年第5期6-8,13,共4页
Railway Locomotive & Car
基金
牵引动力国家重点实验室自主项目(2012TPL_T08)
四川省应用基础项目(2012JY0094)
博士点新教师基金(20090184120016)
关键词
比例车体
振动试验台
力学模型
有限元分析
scale carboy
vibration test rig
mechanics model
finite element analysis
