CRH380型动车组车体三维建模及强度分析车辆工程毕业设计

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CRH380 型动车组车体三维建模及强度

分析

摘要

中国在经历了全国铁路第六次大提速后，高速铁路步入了高速发展时期，具有了

相当的基础与技术力量。武广线和郑西线高铁的相继建成通车，显示出中国高铁建设

的综合力量。经过“引进消化吸收再创新”，中国南车、北车等企业也在不断提高我

国高铁产品的国产化水平。而论文的研究对象——新一代 CRH380 国产动车组正是在

这种情况下应运而生的。简述 CRH380 新一代动车组挂车车身的构造特征和材质力学

性能；在此基础上，对车身进行了合理的建模，并利用 HyperMesh 建立了车身的有限

元分析模型；在此基础上，根据 EN12663 规范，对 17 个工作状态下的车身进行了静态

强度计算，并对模拟结果进行了校核；通过对全车车身的自振特性进行了研究，得到

了一阶竖直弯的频率及模态，并对该模型的模态图进行了验证；根据实测资料与模拟

计算的对比，结合车身结构静态强度报告，对结构中的弱点部位进行加强和改善；在

此基础上，采用有限元程序 ANSYS 及 HyperMesh 的 OptiStruct，分别对各构件进行

了精细化强度计算与尺度优化。本项目的研究工作既是基础也是重要的环节，为高铁

车身的优化设计奠定基础。

关键词：动车组;有限元法;强度分析;子模型法;尺寸优化

）

Abstract

After the sixth national railway speed increase, the high speed railway in China has

stepped into a high-speed developing period, and has considerable basic and technical

strength. Wuhan-Guangzhou line and Zhengzhou-Xi'an line have been completed and opened

to traffic, showing the comprehensive strength of China's high-speed rail construction. After

"introduction, digestion, absorption and re-innovation," China CSR, CNR and other

enterprises are also constantly improving the localization level of China's high-speed rail

products. The new generation CRH380 domestic motor train unit, which is the subject of this

paper, arises at the historic moment in this situation. The structural characteristics and

mechanical properties of the trailer body of CRH380 new generation motor train unit are

briefly described. On this basis, the car body is modeled reasonably, and the finite element

analysis of the car body is established by HyperMesh. On this basis, according to EN12663

code, the static strength of the car body under 17 working states is calculated, and the

simulation results are checked. The natural vibration characteristics of the whole vehicle body

are studied, and the frequency and mode of the first order vertical bend are obtained, and the

modal diagram of the model is verified. According to the comparison of measured data and

simulation calculation, combined with the static strength report of the body structure, the

weak parts of the structure are strengthened and improved. On this basis, the finite element

program ANSYS and the OptiStruct of HyperMesh are used to calculate the fine strength and

scale optimization of each component. The research work of this project is not only the

foundation but also an important part, which lays the foundation for the optimization design

of high-speed rail body.

Key words: motor train unit; Finite element method; Strength analysis; Submodel

method; Size optimization

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标签： #设计 #车辆工程

摘要：

CRH380型动车组车体三维建模及强度分析2摘要中国在经历了全国铁路第六次大提速后，高速铁路步入了高速发展时期，具有了相当的基础与技术力量。武广线和郑西线高铁的相继建成通车，显示出中国高铁建设的综合力量。经过“引进消化吸收再创新”，中国南车、北车等企业也在不断提高我国高铁产品的国产化水平。而论文的研究对象——新一代CRH380国产动车组正是在这种情况下应运而生的。简述CRH380新一代动车组挂车车身的构造特征和材质力学性能；在此基础上，对车身进行了合理的建模，并利用HyperMesh建立了车身的有限元分析模型；在此基础上，根据EN12663规范，对17个工作状态下的车身进行了静态强度计算，并对...

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