Building Vibration Control by Active Mass Damper with Delayed Acceleration Feedback: Multi-objective Optimal Design and Experimental Validation

[+] Author and Article Information
Yuan Guang Zheng

School of Mathematics and Information Science, Nanchang Hangkong University, Nanchang 330063, China

Jingwen Huang

College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China

Yahui Sun

State Key Laboratory for Strength and Vibration, Xian Jiaotong University, Xian 710049, China

Jian-Qiao Sun

School of Engineering, University of California, Merced, CA 95343, USA

1Corresponding author.

ASME doi:10.1115/1.4038955 History: Received September 08, 2017; Revised December 12, 2017


The building structural vibration control by an active mass damper with delayed acceleration feedback is studied. The control is designed with a multi-objective optimal approach. The stable region in a parameter space of the control gain and time-delay is obtained by using the method of stability switch and the numerical code of NDDEBIFTOOL. The control objectives include the setting time, total power consumption, peak time, and the maximum power. The multi-objective optimization problem for the control design is solved with the simple cell mapping method. The Pareto set and Pareto front are found to consist of two clusters. The first cluster has negative feedback gains, i.e. the positive acceleration feedback. We have shown that a proper time-delay can enhance the vibration suppression with controls from the first cluster. The second cluster has positive feedback gains and is located in the region which is sensitive to time-delay. A small time-delay will deteriorate the control performance in this cluster. Numerical simulations and experiments are carried out to demonstrate the analytical findings.

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