| 缩减基法在汽车车架分析中应用 |
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| 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. |
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| 作者姓名： | 李永红 李光耀 刘桂荣 |
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| 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 |
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| 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。
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| 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 |
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| 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. |
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| Authors: | Li Yonghong Li Guangyao Liu Guirong |
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| Affiliation: | State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha, 410082 |
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| 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. |
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| Keywords: | frame reduced-basis method off-line stage on-line stage error analysis |
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