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结构有限元分析模型计算的结构响应与实测响应之间不可避免地存在一定偏差。利用结构现场实测的响应信息修正其结构有限元分析模型,使得修正后结构有限元模型计算的响应值与试验值趋于一致,此过程即为结构有限元模型修正。本文对结构动力模型修正和静力模型修正的一般理论及其进展进行了综述,讨论了有限元模型修正中的若干重要技术问题。
There is inevitably a certain deviation between the structural response and the measured response calculated by the structural finite element analysis model. The structure finite element analysis model was modified by the response information measured at the structure site so that the response value calculated by the finite element model of the revised structure agrees with the experimental value. This process is the modification of the finite element model of the structure. In this paper, the general theories of structural dynamic model correction and static model correction and their progress are reviewed. Some important technical problems in the finite element model revision are discussed.