摘要
针对汽车底盘件结构耐久分析中存在的效率低、一致性差的问题,建立了分析流程自动化系统。在载荷分解方面,基于多体动力学、统计学等原理,开发了载荷快速转化、结果自动校核等算法,建立了载荷求解及结果后处理的自动化系统。在有限元分析方面,基于二次开发技术、视图变换等原理,提出了自动建模、批量后处理等算法,建立了有限元分析全流程的自动化系统。基于流程自动化系统进行底盘件分析时,载荷分解效率提高了91%,有限元平均分析效率提高47%,在大幅缩短工作周期的同时规避了人为错误的影响,使分析结果的一致性得到充分保证。利用该系统进行某车型动力总成悬置支架的优化,在10 d时间内完成7版数据的优化迭代,使问题得到快速整改,验证了所开发系统的高效性和实用性。
An automatic analysis system,aiming at inefficiency and inconsistency problems which appear in the analysis procedure of vehicle chassis durability,was built. In terms of load obtaining,based on the principles of multi-body dynamics,statistics,etc.,algorithms such as rapid load conversion and automatic result verification have been developed,and an automated system for load resolution and result post-processing has been established. In the aspect of FEM,based on the principles of secondary development technology and view transformation,automatic modeling,batch post-processing and other algorithms are proposed,and the entire process of finite element analysis is established. The efficiency of load obtaining and FEM computing are increased by 91% and 47%respectively when using the automatic system to analyze chassis durability performance,which can avoid human errors and guarantee the consistency of results fully. The system was used to optimize the powertrain mounting bracket of a certain vehicle model,and the 7 iterations of data optimization iterations were completed within 10 days,which quickly corrected the problems and verified the efficiency and practicability of the developed system.
作者
田磊
张立玲
黄黎
韩东
喻炜
TIAN Lei;ZHANG Liling;HUANG Li;HAN Dong;YU Wei(Research and Design Center,BAIC Motor Co.,Ltd.,Beijing 101300,China;State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China)
出处
《重庆理工大学学报（自然科学）》
CAS
北大核心
2020年第5期58-67,90,共11页
Journal of Chongqing University of Technology：Natural Science
基金
北京汽车集团有限公司-吉林大学博士后联合培养项目(1200000346)。
关键词
载荷分解
结构耐久分析
流程自动化
悬置支架优化
load obtaining
durability analysis
automatic analysis procedure
powertrain mount bracket optimization
