基于焊点与相邻单元一体化应变能的灵敏度评价方法研究*

doi:10.19562/j.chinasae.qcgc.2020.06.017

汽车工程 ›› 2020, Vol. 42 ›› Issue (6): 820-825.doi: 10.19562/j.chinasae.qcgc.2020.06.017

基于焊点与相邻单元一体化应变能的灵敏度评价方法研究^*

宋海生^1,2, 杨娜², 杨昌海¹, 陈志勇¹, 史文库¹

1.吉林大学,汽车仿真与控制国家重点实验室,长春 130022;
2.一汽大众汽车有限公司技术开发部,长春 130022

收稿日期:2019-11-28 出版日期:2020-06-25 发布日期:2020-07-16
通讯作者: 杨昌海,高级工程师,博士,E-mail:ych@jlu.edu.cn
基金资助:
国家重点研发计划项目(2018YFB0106200)资助

Research on Sensitivity Evaluation Method Based on SpotWelds-Adjacent Elements Integrated Strain Energy

Song Haisheng^1,2, Yang Na², Yang Changhai¹, Chen Zhiyong¹, Shi Wenku¹

1. Jilin University, State Key Laboratory of Automotive Simulation and Control, Changchun 130022;
2. Technology Development Department, Faw-Volkswagen Automotive Co., Ltd., Changchun 130022

Received:2019-11-28 Online:2020-06-25 Published:2020-07-16

摘要/Abstract

摘要： 焊点对于结构的动刚度有很大的影响,在以结构动刚度作为目标的焊点优化中,焊点灵敏度的评价至关重要。鉴于目前焊点灵敏度的评价方法在某些情况下可能导致错误结果,本文中提出一种基于焊点与相邻单元一体化应变能的灵敏度评价方法,并与传统方法进行了对比验证。结果表明,本文中提出的方法能更准确地反映焊点对于结构动刚度的影响程度。

关键词: 焊点, 灵敏度, 有限元法, 动刚度, 应变能

Abstract: Spot-welds have great influence on dynamic stiffness of structure, and the evaluation of the sensitivity of structure to spot-welds is very important in the spot-welds optimization with the dynamic stiffness of structure as objective. In view of that in some cases the traditional sensibility evaluation method for spot welds may get a wrong result, a sensibility evaluation method based on spot welds-adjacent element integrated strain energy is proposed and a comparative verification with traditional one is conducted. The results show that the method proposed can more accurately reflect the influence extent of spot welds on the dynamic stiffness of structure

Key words: spot-welds, sensitivity, FEM, dynamic stiffness, strain energy

宋海生, 杨娜, 杨昌海, 陈志勇, 史文库. 基于焊点与相邻单元一体化应变能的灵敏度评价方法研究^*[J]. 汽车工程, 2020, 42(6): 820-825.

Song Haisheng, Yang Na, Yang Changhai, Chen Zhiyong, Shi Wenku. Research on Sensitivity Evaluation Method Based on SpotWelds-Adjacent Elements Integrated Strain Energy[J]. Automotive Engineering, 2020, 42(6): 820-825.

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基于焊点与相邻单元一体化应变能的灵敏度评价方法研究^*

Research on Sensitivity Evaluation Method Based on SpotWelds-Adjacent Elements Integrated Strain Energy

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