基于多体模型载荷分解的物流车骨架强度分析  

The Strength Analysis for Logistics Car Frame Based on The Load Decomposition of Multi-body Model

作　　者：荆振洋 胡亮文 JING Zhen-yang;HU Liang-wen(Zhuhai Guangtong Automobile Co.,Ltd.,Zhuhai 519090,China)

机构地区：[1]珠海广通汽车有限公司,珠海519090

出　　处：《汽车科技》2022年第5期68-73,共6页Auto Sci-Tech

摘　　要：车身骨架作为整车承载系统,其强度对整车性能及乘员安全有重要的影响,鉴于车辆运行状态的复杂性,工程师很难准确地获取车身骨架的受载和边界约束。本文以某新开发的物流车为例,使用MotionView软件建立多体模型,对八种典型极限工况进行准静态分析,获取了车身接附点的载荷,利用有限元模拟出车身骨架在各工况下的应力状态,并优化了薄弱环节的结构。通过载荷分解与强度分析,为物流车设计过程中的强度校核提供了一套完整的解决方案。It is important to vehicle performance and occupant safty for the loading system of the car frame,Because of the boundary condition of load and state of motion is very complex,it is very hard to get the accurately loading and boundary constraint.Taking a new logistics car as an example in this paper,the logistics car model is established by using MotionView software,there are eight typical limit loadcase for strength analysis in order to get the force on the contact point.According to finite element method,the stress about car frame is calculated and the struct weakness is also optimized.For the load decomposition and strength analysis of the car frame,a complete set of solutions is established in order to check strength in the whole logistics car design.

关 键 词：车身骨架 多体模型 载荷分解 极限工况 强度分析 

分 类 号：U463.822[机械工程—车辆工程]