基于输出响应的识别结构参数的神经网络方法

A Method of Structural Modal Parameters Identification Under Unknown Inputs Using Neural Networks

讨论了在输入未知时结构模态参数基于频率响应函数的神经网络识别方法 ,并研究了不同的噪声水平和网络输入层结点数目的变化对网络输出误差的影响 .讨论了网络对不同阶数模态参数的识别精度 .

This paper proposes a method for identifying structural modal parameters based on neural network. The influence of variety of noise and node number of the input layer of neural network to the error of the network are also taken into consideration.Furthermore, the identification precision of the neural network to different order of the modal parameters is also studied. Numerical results show that this method is very practical.