A novel recursive dynamic mode decomposition method for modal parameter identification of time-varying structures based on input-output data

Zhi-Sai Ma, Ting-Wei Fan, Hao-Cheng Xu, Jingyong Han, Xin Sui, Qian Ding, School of Mechanical Engineering, Tianjin University, Tianjin Key Laboratory of Nonlinear Dynamics and Control, China Academy of Launch Vehicle Technology

Journal of Vibration and Control

Published online on December 04, 2025

Abstract

Journal of Vibration and Control, Ahead of Print.
Many engineering structures under operating conditions exhibit significant time-varying dynamic characteristics, making time-varying modal parameter identification an urgent but challenging problem in structural dynamics. In recent years, the Dynamic Mode ...