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本文采用在结构水平双向设置TLCD半主动控制装置的方法,对偏心结构在多维地震作用下的振动控制问题进行研究。首先利用多层前向神经网络,对偏心结构在双向地震输入下的两个平动方向的反应进行预测。然后在建立起半主动控制策略的基础上,利用神经网络根据控制准则调整TLCD的开孔率、实现对结构的半主动控制。数值结果表明,这种方法能对结构的平动反应和扭转反应都能起到较好的减震效果。
In this paper, a TLCD semi-active control device with two-way structure is used to study the vibration control of eccentric structure under the multi-dimensional earthquake. Firstly, the multi-layer forward neural network is used to predict the response of two eccentric structures under the two-direction seismic input. Then based on the semi-active control strategy, neural network is used to adjust the open area of TLCD according to the control criterion to realize the semi-active control of the structure. The numerical results show that this method can achieve better damping effect on the translational motion and torsional response of the structure.