Abstract：In view of the low efficiency of the revision due to the numerous nodes of the solid finite element model of the ancient masonry pagoda, a fast revision method of the finite element model combining the solid model and the cantilever model is proposed. Based on the test output signal, the natural frequencies were obtained by using Stochastic Subspace Identification method. Based on ABAQUS platform, the finite element model is established by using the overall continuous method, based on the measured results, the Firefly Algorithm is used to modify the elastic modulus and density of the pagoda. The calculated results of the modified finite element model are close to the measured results, it shows that the modified model is reliable and can be used as the basis for subsequent seismic performance analysis.
杨庆山，张源浩，刘纲，王晖. 基于等效模型的砖石古塔有限元模型修正方法[J]. 振动与冲击, 2024, 43(3): 105-109.
YANG Qingshan, ZHANG Yuanhao, LIU Gang, WANG Hui. Finite element model fast correction method for ancient masonry pagoda based on equivalent model. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(3): 105-109.
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