关键词: 振动筛, 实验模态, 模态参数, vibrating screen, experimental modal analysis, modal parameters

Abstract: Modal analysis is a modern method to study the dynamic characteristics of the structural, and is the application of system identification method in the field of engineering vibration. In this paper, by experimental modal analysis of a certain type of vibrating screen, we obtain the modal parameters, such as the natural frequency, damping ratio and mode shapes, and so on. Based on analyzing the problems existing in the design of the vibrating screen , we provide reference for subsequent modification of simulation calculation model and structure optimization design.