车身结构耐撞性的概念设计仿真

车身结构耐撞性的概念设计是由车辆乘员伤害指标确定出整车碰撞波形（正面碰撞），根据波形将车身结构性能分解参数化设计，文章从CAE建模角度。探讨比较了建立车身概念设计模型的各种主要方法工具，包括LMS模型、有限元Beam—element模型和多体MadymoFrame模型。表明各模型的建模特点和基本方法主要取决于结构刚度特性和惯性特性的提取与参数化。指出三维模型在概念设计阶段具有适用性和局限性。

Simulation Methods of Body Structure Crashworthiness Conceptual Design

The body crashworthiness conceptual design is to define complete vehicle impact waveform by passenger injury index(front crash).Decompose the performance of body structure performance and parametric design is conducted based on the waveform.The current main tools and methods for building body conceptual design models is discussed and compared by using CAE,including LMS model,Finite Beam-element model and multi-body Madymo Frame model.It is shown that the modeling characteristic of each model and its basic m...