关键词: 客车车架；车身结构；结构强度；模态分析

Abstract: The structure of a bus is a very important part of the bus design and manufacturing process. As the basic structural components of the bus, the frame and body are responsible for carrying the layout of all systems and are the main carriers for bearing various impacts caused by the unevenness of the free ground. Due to its complex structure and large development cost, high requirements are put forward in the design stage. Therefore, the strength and modal analysis of the frame and body are important steps to ensure the reasonable design of the bus structure. This article describes a finite element analysis method, describes in detail the precautions in the finite element analysis process and the simulation of related important components, which has certain guiding significance for the analysis of the strength and modal of the entire vehicle structure.

Key words: Bus frame; Body structure; Structural strength; Modal analysis