Simulation and experimental investigation of structural dynamic frequency characteristics control

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Abstract

In general, mechanical equipment such as cars, airplanes, and machine tools all operate with constant frequency characteristics. These constant working characteristics should be controlled if the dynamic performance of the equipment demands improvement or the dynamic characteristics is intended to change with different working conditions. Active control is a stable and beneficial method for this, but current active control methods mainly focus on vibration control for reducing the vibration amplitudes in the time domain or frequency domain. In this paper, a new method of dynamic frequency characteristics active control (DFCAC) is presented for a flat plate, which can not only accomplish vibration control but also arbitrarily change the dynamic characteristics of the equipment. The proposed DFCAC algorithm is based on a neural network including two parts of the identification implement and the controller. The effectiveness of the DFCAC method is verified by several simulation and experiments, which provide desirable results. © 2012 by the authors; licensee MDPI, Basel, Switzerland.

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APA

Zhang, X., Chen, X., You, S., He, Z., & Li, B. (2012). Simulation and experimental investigation of structural dynamic frequency characteristics control. Sensors, 12(4), 4986–5004. https://doi.org/10.3390/s120404986

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