The identification of structural damage by figure CWD and time-frequency analysis are made based on MATLAB. Results show that JTFA methods can describe clearly how the spectral content varies with time.

• 对结构非线性分析得到关键部位的速度、加速度和位移,运用MATLAB信号处理技术对信号进行时频分析,并运用CWD图对结构进行损伤识别。