The study of equipment-structure interaction considering the effect of local nonlinearity
Jiang Xinliang Zhang Chongxiang
School of Civil Engineering, Tianjin University/Key Laboratory of Coastal Civil Engineering Structure and Safety (Tianjin University), Ministry of Education, Tianjin 300072, China
Abstract:Because of the poor performance of equipment in equipment-structure systems, so we should analyze equipment-structure interaction considering the nonlinear effect of the equipment. The mixed dynamic substructure method which considered the local nonlinearity was introduced, and the equipment was simulated as nonlinear secondary substructure, then the mixed dynamic substructure equation about linear and nonlinear coupling was deduced. Time history analysis of equipment-structure systems which involved three calculation models was performed using the method. The study results indicate that the structural response decreases in general when consider the influence of nonlinear equipment and linear structure interaction. Meanwhile, it leads to the deformation of the equipment increasing. The results are closely related to the structural characteristics and the types of ground motion. The mixed dynamic substructure method has reliable and efficient characteristics.
姜忻良 张崇祥. 考虑局部非线性影响的设备-结构相互作用研究[J]. 振动与冲击, 2016, 35(16): 106-113.
Jiang Xinliang Zhang Chongxiang. The study of equipment-structure interaction considering the effect of local nonlinearity. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(16): 106-113.
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