冲击碰撞中流场的有限元解

上海大学学报(自然科学版)

冲击碰撞中流场的有限元解

侯磊1，3,韩月红1，仇璘2，3

(1.上海大学理学院，上海 200444； 2.上海交通大学数学系，上海 200240；3.上海交通大学上海高校计算科学E研究院，上海 200030)

收稿日期:2007-06-11 修回日期:1900-01-01 出版日期:2008-12-21 发布日期:2008-12-21
通讯作者: 侯磊

FEA Solution for Flows in Crash Impact

HOU Lei1,3,HAN Yue-hong1,QIU Lin 2,3

(1. College of Sciences, Shanghai University, Shanghai 200444, China;2. Department of Mathematics, Shanghai Jiaotong University, Shanghai 200240, China;3. Computational Sciences, E-institute of Shanghai Universities, Shanghai Jiaotong University, Shanghai 200030, China)

Received:2007-06-11 Revised:1900-01-01 Online:2008-12-21 Published:2008-12-21
Contact: HOU Lei

摘要/Abstract

摘要： 汽车碰撞实验是一个费时费力费钱的过程，采用 MSC-Marc 有限元软件模拟可以降低设计费用，缩短实验周期.运用 MSC-Marc 隐式算法对碰撞前触发流场（次主模）进行模拟，并对汽车安全技术被动保护装置的气流触发控制建立数学模型，且考虑运用Navier-Stokes方程，计算移动变形边界 u 对空腔流场V 的瞬时扰动影响.

关键词: MSC-Marc隐式算法, 空腔流场, 瞬时扰动, 移动边界

Abstract: The process of the auto-crash test is expensive in labor, time and cost. The implicit finite element method solver MSC-Marc has been used for the sensitive triggering flow (secondary-mode) before the impact happens. The mathematical model of simulation is interesting for the passive safety in automotive protection devices. The Navier-Stokes equation is considered for a deformed moving boundary u condition and resulting cavity flowV problem in the impact perturbation.

Key words: moving boundary, MSC-Marc implicit method, transient, cavity flow

中图分类号:

O 242.21

侯磊;;韩月红;仇璘;. 冲击碰撞中流场的有限元解[J]. 上海大学学报(自然科学版).

HOU Lei;HAN Yue-hong;QIU Lin;. FEA Solution for Flows in Crash Impact[J]. Journal of Shanghai University（Natural Science Edition）.