摘 要

近年来中国经济的发展迅速，极大的改善了我们的生产和生活。人们生活质量提高后，基本上每个家庭都有车。由于逐步增多的私家车，交通事故占有的比例也每年均有上升。同时，人们也越来越重视汽车座椅的安全性能。安全性能设计作为汽车座椅最重要的组成部分，作用也越来越重要。下面，通过建立电动汽车座椅的CAE分析模型，并对其进行碰撞分析和验证，深入研究电动汽车座椅的安全设计。CAE技术在机械设计领域发挥着重要作用。它是缩短产品生命周期、提高产品创新能力的关键技术。也是提高企业市场竞争力的重要手段。目前，国内外汽车领域的应用已经比较成熟。从零部件到整车，结构或强度CAE分析、流场分析和内燃机仿真等都有完整的仿真方案，同时，ABAQUS、ANSYS、HyperMesh等有限元分析软件也得到了广泛的应用。具体技术参考文献包括但不限于通过结构拓扑优化设计进行轻量化设计、基于ANSYS Workbench软件的模态分析、随机振动分析和谐响应分析来分析动力特性[1]，并基于HyperWorks有限元软件对三种方案进行了静强度仿真分析[4]采用密度法对新型铝合金座椅骨架进行了拓扑优化设计[5]。因此，在电动汽车座椅骨架的结构设计中，可以利用有限元法对电动汽车座椅的静态性能进行分析，优化座椅骨架的结构设计，并对座椅碰撞进行分析和校核，使座椅结构满足强度和刚度要求，提高座椅的承载能力安全。

关键词：电动车；后排座椅；骨架结构；

Abstract

In recent years, China's rapid economic development has greatly improved our production and life. After the improvement of people's quality of life, almost every family has a car. Due to the increasing number of private cars, the proportion of traffic accidents also increases every year. At the same time, people pay more and more attention to the safety performance of car seats. As the most important part of car seat, safety performance design plays an increasingly important role. Next, through the establishment of the CAE analysis model of the electric vehicle seat, and its collision analysis and verification, in-depth study of the safety design of the electric vehicle seat. CAE technology plays an important role in the field of mechanical design. It is the key technology to shorten product life cycle and improve product innovation ability. It is also an important means to improve the market competitiveness of enterprises. At present, the application of automobile field at home and abroad has been relatively mature. There are complete simulation schemes from parts to vehicle, structure or strength CAE analysis, flow field analysis and internal combustion engine simulation. At the same time, finite element analysis software such as ABAQUS, ANSYS and HyperMesh are also widely used. Specific technical references include but are not limited to lightweight design through structural topology optimization design, based on ANSYS The modal analysis, random vibration analysis and harmonic response analysis of workbench software are used to analyze the dynamic characteristics [1], and the static strength simulation analysis of the three schemes is carried out based on the HyperWorks finite element software [4] the topological optimization design of the new aluminum alloy seat frame is carried out by using the density method [5]. Therefore, in the structural design of the electric vehicle seat frame, the finite element method can be used to analyze the static performance of the electric vehicle seat, optimize the structural design of the seat frame, and analyze and check the seat collision, so that the seat structure can meet the requirements of strength and stiffness, and improve the bearing capacity and safety of the seat.

Keywords: electric vehicle; rear seat; skeleton structure;

目录