Identification of Modal Parameters of a Rocket: by Continuous Wavelet-based Approach

Modal parameters of spacecraft structures are important indicators of their dynamic characteristics which can be used for vibration reduction and control. In the present research modal parameters of a rocket are identified by using continuous wavelet transformation. The advantages of the wavelet transformation for the modal parameters identification over other methods is study. Through finite element method transient dynamic response of a system is determined then continuous wavelet transformation is applied to find the modal parameters like modal frequency, mode shapes and damping ratio.