动车组内端门吊装结构强度计算及优化设计
李俊澎
（大连交通大学 机车车辆工程学院，辽宁 大连 116028）
摘要：高速列车内端门的强度是车辆设计的重要内容，直接关系到车辆的安全运行。本文利用Hypermesh软件对动车组内端门吊装结构进行有限元建模，然后利用ANSYS软件对动车组内端门吊装结构在4种工况下通过有限元分析进行了静强度仿真计算，计算结果显示各工况的最大应力值均超出其材料的许用应力。因此对原模型进行方案修改，计算结果显示各个部件最大应力均未超过其对应材料的屈服强度，且安全系数均大于1。从而得出内端门各零部件满足设计要求，进而得出该内端门吊装结构的强度符合使用要求。并利用HyperStudy软件对内端门结构进行尺寸优化，计算结果表明，优化后的动车组一位端内端门吊装结构不仅使变形变小而且兼顾了轻量化，取得了较好的优化效果，为工程设计人员的结构设计及改进工作提供了有益的经验。
关键词：内端门；吊装结构；有限元分析；尺寸优化
中图分类号：U266 文献标志码：A doi：10.3969/j.issn.1006-0316.2023.06.007
文章编号：1006-0316 (2023) 06-0048-07
Strength Calculation and Optimization Design of Hoisting Structure of Inner EndDoor of EMU
LI Junpeng
( College of Locomotive and Rolling Stock Engineering, Dalian Jiaotong University, Dalian 116028, China )
Abstract：The strength of the inner end door of high-speed train is an important part of vehicle design，which is directly related to the safe operation of the vehicle.In this paper, the finite element modeling of the lifting structure of the end door in the EMU is carried out by using Hypermesh software, and then the static strength simulation calculation of the lifting structure of the end door in the EMU is carried out by using ANSYS software under four working conditions. The calculation results show that the maximum stress value of each working condition is beyond the allowable stress of the material. Therefore, the original model was modified, and the calculation results showed that the maximum stress of each component did not exceed the yield strength of the corresponding material, and the safety factor was greater than 1. Thus, it can be concluded that the components of the inner end door meet the design requirements, and then it can be concluded that the strength of the lifting structure of the inner end door meets the use requirements. The size of the inner end door structure is optimized by using HyperStudy software. The calculation results show that the optimized structure of the inner end door of the EMU not only reduces the deformation, but also gives consideration to the lightweight, and obtains a good optimization effect, which provides useful experience for the structural design and improvement of the engineering designers.
Key words：inner door；hoisting structure；finite element analysis；size optimization
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收稿日期：2022-09-16
作者简介：李俊澎（1998－），男，吉林通化人，硕士研究生，主要研究方向为轨道车辆工程，E-mail：1059820740@qq.com。
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