结构电磁TMD控制振动台模型试验的数值模拟

Computational Simulation of Model Test on Shaking Table for Structural Electromagnetism TMD Control

通过运用有限单元法和静力凝聚法 ,对钢结构模型振动台试验进行了模拟计算 ,建立了简化分析模型 .在此基础上 ,进一步讨论了装有高频电磁耗能TMD装置后钢结构模型的减震分析模型的变化与形成方法 .通过结构自振频率和动力响应的分析对比表明 :计算结果与试验实测结果相符合 ,说明建议的简化分析模型和计算方法是可靠的 .

The finite element method and static condensation technique are used to simulate the responses of a steel frame model under the excitation of the shaking table.Furthermore,the difference of the analysis model of the steel frame model attached additionally with an electromagnetism TMD is discussed.And then the computational formulation is suggested for the system of the steel frame model and TMD devise under the seismic excitation.It has been shown that the numerical results are very close to the results obtained from the shaking table model test.Therefore,the static condensation technique is available for seismic analysis of the TMD control of the frame structures.