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| An automatic and rapid computational method and its application in vehicle body design |
| Received:July 05, 2009 Revised:November 07, 2009 |
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| DOI：10.7511/jslx201103005 |
| KeyWord:reduced-basis method hybrid numerical method subspace shell structure vehicle body design |
| Author | Institution |
| 雷飞 |
湖南大学 汽车车身先进设计制造国家重点实验室,长沙 |
| 韩旭 |
湖南大学 汽车车身先进设计制造国家重点实验室,长沙 |
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| Abstract: |
| An automatic and rapid computational method was suggested to predict the structural behavior of multi-parameterized and large-scale problems in structural design. Some isolate techniques, such as parameter domain discretization, explicit parametrized finite element method and subspace construction method, were connected by the automatic computational procedure to improve the feasibility of the method. The procedure of general rapid computational method was changed. Furthermore, the subspace constructed in the procedure was real-time updated according to the computational error. Meanwhile, the accuracy of the automatic computational method was improved and the cost of constructing the subspace is reduced. The method was applied to the stiffness evaluation of a vehicle body. It is found that the subspace derived from the automatic method is of higher accuracy with less computational efforts. The method is applicable to the multi-parameterized large-scale structural design and real-time design contexts. |