【摘要】 振动台子结构试验的一个重要研究内容是试验系统的时滞与补偿。时滞会影响试验的精度、系统的稳定,甚至造成计算结果的发散。在现代控制理论中,神经网络是解决时滞问题的一个有效工具。在振动台子结构试验中,可以利用神经网络对作动器的信号进行预测。通过仿真分析发现,神经网络的时滞补偿效果显著。更多还原

【Abstract】 Time delay is an important studying aspect in real-time substructure testing with shaking table.Time delay can affect accuracy and stability of a testing system,and even cause divergence of calculation results.In modern control theory,neural network is an effective way to compensate time delay.Here,it was used to predict a signal exerted on actuator of a shaking table.Through simulations,it was found that its effect of compensation on time delay is significant.更多还原