Simulation of the Dynamic Characteristics of the Coupled System Structure
The human body forms a complex dynamic system with more than one natural frequency and provides considerable damping capacities. Therefore, the coupled system of a structure and the occupants can hardly be described with its basic dynamic characteristics considering only the mass of the occupants. Depending on the natural frequency of the empty structure, the human body dominantly acts like a mass, a mass and a damper or a damper. If the natural frequency of the empty stand increases 3 Hz, the human body induces considerable damping into the coupled system. In the limit, the dynamic characteristics can be described based on the average values of the characteristics of the human body.
Dongye Sun, Wen-Pei Sung and Ran Chen
D. Wang et al., "Simulation of the Dynamic Characteristics of the Coupled System Structure", Applied Mechanics and Materials, Vols. 71-78, pp. 1507-1510, 2011