基于CAE的汽车车架强度及模态分析

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关键词：汽车车架；载货车车架；CAE；强度分析；模态分析

中图分类号：U463 DOI ：10.20042/j.cnki.1009-4903.2024.06.006

Strength and Modal Analysis of Automobile Frame Based on CAE

Abstract： Almost all assembly parts of the car are installed on the frame assembly through the bracket， such as the cab， engine， fueltank， battery and so on. Frame assembly is one of the most important assembly in the car， it bears the mass of the major assembly andthe bending moment and longitudinal force generated， uneven road will also make the frame produce torsion Angle， so the frame needsto have enough strength. In this paper， the strength analysis model of truck frame is established by CAE finite element analysis method.The boundary conditions and calculation methods of frame vertical， front torsion， back torsion， counter torsion and side were determined，which provided a theoretical basis for frame structure design.

Key words：Automobile frame；Truck frame；CAE；Strength analysis；Modal analysis

0引言

在汽车车架产品的设计开发阶段，常采用CAE分析方法，以模拟汽车的实际使用工况，进而分析车架的强度[1]。（剩余2465字）