采用Chang方法的混合试验的稳定性和精度

Stability and Accuracy of Shaking Table actuator Hybrid Test with Chang Method

摘要:

推导了采用Chang方法的混合试验的控制公式，并采用MATLAB分析软件建立了基于Chang方法的混合试验数值模拟平台.为研究误差对采用Chang方法混合试验的稳定性和精度所造成的影响，推导了两种时滞误差影响下采用Chang方法的混合试验的收敛性公式，并利用数值模拟平台对收敛性理论结果进行验证.采用上述平台，从周期误差率和幅值误差率的角度研究了误差对采用Chang方法的混合试验精度的影响.

Abstract:

The formula of shaking table actuator hybrid test STAHT with Chang Method is deduced firstly and the numerical simulation platform based on Chang Method is established using software MATLAB. As errors are inevitable in STAHTs, the effects of errors on the stability and accuracy of STAHT with Chang Method are discussed with theoretical method and the numerical simulation platform is used to verify the theoretical results.