@inproceedings{d10756279fda49fc8b1c61b4b7ff56e3,
title = "Experimental research on the virtual absorbed energy in multi-channel decentralized velocity feedback control of a plate with piezoelectric patch actuators",
abstract = "Virtual absorbed energy of the piezoelectric patch actuator is a new cost function for the optimal feedback gain which has been proved theoretically. In this work, its performance is validated by experiments on the reduction of the vibration and sound radiation of a smart panel with 9 decentralized control loops. Each control unit consists of a collocated piezoelectric patch actuator and accelerometer sensor with a single channel digital controller. Since the system is not unconditionally stable, a phase lag compensator is designed to guarantee the stability for larger feedback gains. The stability of the multi-channel decentralized feedback control system has been assessed by the eigenvalue locus of the open loop sensor-actuator frequency response function matrix. The control effectiveness of the reduction of the panel kinetic energy has been assessed by the energy at 12 error sensors. It is observed that the feedback gains minimizing the kinetic energy and maximizing the broadband virtual energy are nearly the same.",
author = "Yicheng Yu and Hongling Sun and Fengyan An and Jun Yang and Jing Tian",
year = "2014",
language = "English",
series = "21st International Congress on Sound and Vibration 2014, ICSV 2014",
publisher = "International Institute of Acoustics and Vibrations",
pages = "3714--3721",
booktitle = "21st International Congress on Sound and Vibration 2014, ICSV 2014",
address = "United States",
note = "21st International Congress on Sound and Vibration 2014, ICSV 2014 ; Conference date: 13-07-2014 Through 17-07-2014",
}