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Finite Model and Experiment Modal Analysis of Car Body-in-White

QIU Bin, ZHANG Dai-sheng, ZHANG Lin-tao (Hefei University of Technology, Hefei 230009, China)  
In this paper, the finite element model of car body-in-white is established and the vibration modes of the car are theoretically analyzed. The car body-in-white experimental system was established scientifically and the experimental modal quality was proved by modal assurance criterion. By contrast between the result of model analysis and the experiment, the finite element analysis model's precision has been examined. The result will provide the basis for the dynamic and structure design.
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