A velocity based active vibration control of hysteretic systems

作者：Pujol Gisela^*; Acho Leonardo; Pozo Francesc; Rodriguez Arturo; Vidal Yolanda

来源：Mechanical Systems and Signal Processing, 2011, 25(1): 465-474.

DOI：10.1016/j.ymssp.2010.08.011

• Hysteresis
• Modeling
• Vibration control
• Passive function

Hysteresis is a property of systems that do not instantly follow the forces applied to them, but react slowly, or do not return completely to their original state. A velocity based active vibration control, along with a special class of hysteretic models using passive functions are presented in this paper. This hysteretic model is based on a modification of the Bouc-Wen model, where a nonlinear term is replaced by a passive function. The proposed class retains the rate-independence property of the original Bouc-Wen model, and it is able to reproduce several kinds of hysteretic loops that cannot be reproduced with the original Bouc-Wen model. Using this class of hysteretic models, a chattering velocity-based active vibration control scheme is developed to mitigate seismic perturbations on hysteretic base-isolated structures. Our hysteretic model is used because of its simplicity in proving the stability of the closed-loop system; i.e., a controller is designed using the proposed model, and its performance is tested on the original hysteretic system, modeled with Bouc-Wen. Numerical experiments show the robustness and efficiency of the proposed control algorithm.

• 出版日期2011-1