System identification: theory for the user
System identification: theory for the user
ISNN '09 Proceedings of the 6th International Symposium on Neural Networks on Advances in Neural Networks
Neural network based prediction schemes of the non-linear seismic response of 3D buildings
Advances in Engineering Software
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System identification is one of the critical factors to control structural vibration with high quality and evaluate whether control method can be applied or not. In this paper, a kind of multi-branch back propagation neural network (BPNN) model is proposed to identify a structural dynamic system. In this model, the primary factors that affect structural dynamic response, namely structure state variables and seismic inputs, are separately treated as the branches of the model, that is expected to enhance prediction precision. The aim of identification is to make the trained model be able to accurately predict structural future dynamic response. When the model is established, it can be trained with collected dynamic response and seismic wave data. In this paper, a numerical example is given. The analytic result turns out that the proposed identification model can accurately predict structural future dynamic response after being trained.