锻压技术

加强筋对薄壁结构件耐冲撞性能的影响

英文标题：Influence of reinforcing ribs on impact resistance for thin-walled structural parts

作者：王鸿鼎秦甘霖刘洪杨文丽

单位：兰州交通大学

分类号：TP603

出版年,卷(期):页码：2021,46(11):176-182

摘要：

以薄壁结构件为研究对象，在薄壁结构件上添加不同数目的肋板，并采用单因素变量法在薄壁结构件体积、长度以及厚度相同的条件下，对不同肋板数目的薄壁结构件受到轴向、斜向、径向碰撞后的最大总变形、最大总应力和最小安全系数进行分析研究。采用ANSYS的Workbench模块建立有限元模型进行数值模拟计算，并对带有肋板的薄壁结构件进行优化设计，对优化后的薄壁结构件进行最大峰值力、平均峰值碰撞力、碰撞力效率等耐冲撞性能的评价指标的计算，分析了优化后薄壁结构件的耐冲撞性。通过对不同数目的肋板进行研究分析，发现其对薄壁结构件的轴向碰撞的耐冲撞性能的影响很小，但在斜向、径向的耐冲撞性能有显著的改善。

For thin-walled structural parts, different numbers of rib were added to the thin-walled structural parts, and the maximum total deformation, the maximum total stress and the minimum safety factor of thin-walled structural parts with different numbers of rib collided along axial, oblique and radial directions were analyzed and studied by the single-factor variable method under the same volume, length and thickness of the thin-walled structural parts. Then, a finite element model was established to perform numerical simulation calculation by Workbench module of ANSYS, and the thin-wall structure parts with ribs were optimized and designed. Furthermore, the impact resistance performance evaluation indexes of the maximum peak force, the average peak impact force and the efficiency of impact force for the optimized thin-wall structure parts were calculated, and the impact resistance performance of the optimized thin-wall structure parts was analyzed. Through the research and analysis on different numbers of rib, it is found that it has little effect on the impact resistance performance of the thin-walled structure parts in the axial collision, but the impact resistance performances in the oblique and radial directions are significantly improved.

基金项目：

国家自然科学基金资助项目(51565025)；甘肃省自然科学基金资助项目(1606RJZA013)；兰州交通大学青年基金资助项目(2014018)

作者简介：王鸿鼎（1983-），男，博士，副教授，E-mail：wanghd@lzjtu.edu.cn；通信作者：秦甘霖（1996-），男，硕士，E-mail：qinganlin2020@163.com

参考文献：

[1]李建功. 轿车碰撞性能试验分析及车身结构安全性研究[D].武汉:武汉理工大学，2009.

Li J G. Car Crash Performance Test Analysis and Car Body Structure Safety Research[D]. Wuhan: Wuhan University of Technology，2019.

[2]Tai Y S, Huang M Y, Hu H T. Axial compression and energy absorption characteristics of highstrength thinwalled cylinders under impact load[J]. Theoretical and Applied Fracture Mechanics, 2010, 53(1):1-8.

[3]程雨婷. 基于协同优化方法的汽车车身性能多学科优化[D].北京:北京理工大学,2016.

Cheng Y T. Multidisciplinary Optimization of Automobile Body Performance Based on Collaborative Optimization Method[D]. Beijing: Beijing Institute of Technology,2016.

[4]Alexander J M.An approximate analysis of the collapse of thin shells under axial loading [J]. Quarterly Journal of Mechanics & Applied Mathematics, 1960, 13(1):10-15.

[5]Najafi A, RaisRohani M. Mechanics of axial plastic collapse in multicell, multicorner crush tubes[J]. ThinWalled Structures, 2011, 49(1):1-12.

[6]Ma J, You Z. Energy absorption of thinwalled square tubes with a prefolded origami pattern-Part I: Geometry and numerical simula-tion[J]. Journal of Applied Mechanics, 2014, 81(1):1003.

[7]张子鹏. 汽车前纵梁复合材料结构设计与吸能特性研究[D].哈尔滨:哈尔滨工业大学,2011.

Zhang Z P. Research on the Structure Design and Energy Absorption Characteristics of Composite Material of Automobile front Longitudinal Beam[D]. Harbin: Harbin Institute of Technology,2011.

[8]韩冰. 蜂巢芯空心楼盖试验研究与有限元分析[D].长沙:长沙理工大学,2004.

Han B. Experimental Research and Finite Element Analysis of Honeycomb Core Hollow Floor[D]. Changsha: Changsha University of Science and Technology,2004.

[9]赵益. 薄壁构件冲压成形和碰撞仿真分析及多目标优化[D].长沙:湖南大学,2014.

Zhao Y. Simulation Analysis and MultiObjective Optimization of Stamping Forming and Collision of Thinwalled Components[D]. Changsha: Hunan University,2014.

[10]文柱柱. 梯度薄壁结构抗冲击性能研究[D].武汉:华中科技大学,2015.

Wen Z Z. Research on Impact Resistance of Gradient Thinwalled Structure[D]. Wuhan: Huazhong University of Science and Technology,2015.

[11]周娜娜. 轿车正面偏置碰撞抗撞性研究[D].重庆:重庆交通大学,2011.

Zhou N N. Research on the Crashworthiness of Car Frontal Offset Collision[D]. Chongqing: Chongqing Jiaotong University,2011.

[12]梁骥. 基于气浮平台的模拟星碰撞分析及实验研究[D].北京:北京邮电大学,2015.

Liang J. Simulated Star Collision Analysis and Experimental Research based on AirFloating Platform[D]. Beijing: Beijing University of Posts and Telecommunications,2015.

[13]董喜文. 金属薄壁管的耐撞性优化设计[D].成都:西南交通大学,2014.

Dong X W. Optimal Design of Crashworthiness of Metal ThinWalled Pipe[D]. Chengdu: Southwest Jiaotong University,2014.

[14]祝维婧. 基于耐撞性及操纵性的汽车轻量化技术研究[J].中国设备工程,2018,(2):120-121.

Zhu W J. Research on automobile lightweight technology based on crashworthiness and handling[J]. China Equipment Engineering,2018,(2):120-121.

[15]殷咏胜, 陈伟山.基于Ansys Workbench大口径复合橡胶软管有限元分析[J].特种橡胶制品, 2016,(3):66-70.

Yin Y S, Chen W S. Finite element analysis of large diameter composite rubber hose based on Ansys Workbench[J]. Special Rubber Products, 2016,(3):66-70.

[16]王平, 郑松林,吴光强.基于协同优化和多目标遗传算法的车身结构多学科优化设计[J].机械工程学报,2011,47(2):102-108.

Wang P, Zheng S L, Wu G Q. Multidisciplinary optimization design of car body structure based on collaborative optimization and multiobjective genetic algorithm[J].Chinese Journal of Mechanical Engineering,2011,47(2):102-108.

服务与反馈：

【文章下载】【加入收藏】