Paper
Optimum Parameter of a Variable Damping System for Seismic Applications
- Authors:
- Amir Soltani; Asadollah Bassam; Hu Jiaxin
- Abstract
- Determination of optimal parameters of a passive control system device is the primary objective of this study. Expanding upon the use of control devices in wind and earthquake hazard reduction has led to development of various control systems. The advantage of non-linear characteristics in a passive control device and the optimal control method using LQR algorithm are explained in this study. Finally, this paper introduces a simple approach to determine optimum parameters of a nonlinear viscous damper for vibration control of structures. A MATLAB code is developed to produce the dynamic motion of the structure considering the stiffness matrix of an SDOF frame and the non-linear damping effect. This study demonstrates that the proposed system (variable damping system) has better performance in system response control than a linear damping system. Also, according to the energy dissipation graph, the total energy loss is greater in non-linear damping system than linear damping as well as active control systems.
- Keywords
- Passive Control System; Damping Devices; Viscous Damper; Control Algorithm
- StartPage
- 235
- EndPage
- 241
- Doi