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缩减基法在汽车车架分析中应用
引用本文:李永红,李光耀,刘桂荣.缩减基法在汽车车架分析中应用[J].中国机械工程,2007,18(2):232-234,243.
作者姓名:李永红  李光耀  刘桂荣
作者单位:湖南大学现代车身先进设计制造国家重点实验室,长沙,410082
摘    要:在汽车车架分析中引入一种超高速计算方法——缩减基法。缩减基法的计算过程分为离线阶段和在线阶段,离线阶段中建立车架的参数设计空间,计算与设计参数无关的项,在线阶段中选取新设计参数即可快速得到计算结果。将缩减基法结果与有限元结果进行比较,对误差进行了分析。计算实例表明,缩减基法可快速甚至实时地得到计算结果,且有很高的计算精度。

关 键 词:车架  缩减基法  离线阶段  在线阶段  误差分析
文章编号:1004-132X(2007)02-0232-03
修稿时间:2005-10-12

Application of Reduced-basis Method in Analysis of Truck Frame
Li Yonghong,Li Guangyao,Liu Guirong.Application of Reduced-basis Method in Analysis of Truck Frame[J].China Mechanical Engineering,2007,18(2):232-234,243.
Authors:Li Yonghong  Li Guangyao  Liu Guirong
Affiliation:State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, 410082
Abstract:A real-time algorithm, called reduced-basis method (RBM), was firstly introduced to the analysis of truck frame.The implementation of the reduced-basis method can be separated into two stages, the expensive off-line stage and the efficient on-line stage. Sample design parameters were selected, and space of design parameters of the frame was established on the on-line stage. When different design parameters were selected,results computed from reduced-basis method and finite element method were analyzed to obtain the error on the on-line stage. It is shown that reduced-basis method can get results very fast,even real-time, without losing accuracy.
Keywords:frame  reduced-basis method  off-line stage  on-line stage  error analysis
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