Evaluation on Spot Weld Models in Structural Dynamic Analysis of Automotive Body in White

作     者：LIANG Jianyong LIANG Jun FANG Guodong PAN Zimin LI Wei 

作者机构：School of Astronautics Harbin Institute of Technology Harbin 150001 China 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2011年第24卷第1期

页      面：84-90页

核心收录：

学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 0817[工学-化学工程与技术] 08[工学] 082304[工学-载运工具运用工程] 0807[工学-动力工程及工程热物理] 080204[工学-车辆工程] 0802[工学-机械工程] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 0823[工学-交通运输工程] 

基　　金：supported by National Natural Science Foundation of China(Grant No.10772060) Heilongjiang Provincial Natural Science Foundation with Excellent Young Investigators of China(GrantNo.JC2006-13) 

主　　题：spot weld model structural dynamic analysis modal analysis two-panel structure double-hat structure body in white 

摘      要：Spot weld models are widely used in finite element analysis（FEA） of automotive body in white（BIW） to predict static,dynamic,durability and other characteristics of automotive ***,few researches are done on evaluation of the validity of these spot weld models in structural dynamic analysis of *** evaluate the validity and accuracy of spot weld models in structural dynamic analysis of BIW,two object functions,error function and deviation function,are introduced *** analysis of Two-panel and Double-hat structures,which are the dominated structures in BIW,is conducted,and the values of these two object functions are *** on the values of object functions,the validity of these spot weld models are *** is found that the area contact method（ACM2） and weld element connection（CWELD） can give more precise prediction in modal analysis of these two classical structures,thus are more applicable to structural dynamic analysis of automotive *** analysis of a classical BIW is performed,which further confirms this *** error function and deviation function proposed in this research can give guidance on the adaptability of spot weld models in structural dynamic analysis of *** this evaluation method can also be adopted in evaluation of other finite element models in static,dynamic and other kinds of analysis for automotive structures.