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Zhang P.-J.,Wuhan Naval University of Engineering | Zhang P.-J.,State Key Laboratory for Ship Vibration and Noise | He L.,Wuhan Naval University of Engineering | He L.,State Key Laboratory for Ship Vibration and Noise | And 4 more authors.
Zhendong yu Chongji/Journal of Vibration and Shock

At present, vibration isolation systems become larger and more complicated. When the multi-error LMS algorithm is used in such systems, the computational complexity increases and it is more difficult for the algorithm to be implemented. Here, the decoupled multi-channel active control algorithm based on FXLMS algorithm was studied and simple adaptive controllers driving independently the actuators of each sub-system were designed. The outputs of error sensors of the relevant subsystem only joined to adjust the control force of the corresponding actuators. When the sum of squared outputs of all the error sensors was minimized, the active control for vibration of a multi-DOF system would be realized. The simulation and test results showed that the decoupled control algorithm used in an active vibration isolation system is simple and effective by adjusting the convergence coefficients and control effort weighted factors. Source

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