Active noise and vibration control system accounting for time varying plant, using residual signal to create probe signal

1999 ◽  
Vol 105 (1) ◽  
pp. 25
Author(s):  
Ronald Coleman ◽  
Bill Watters ◽  
Roy Westerberg
Keyword(s):  
Control System ◽  
Vibration Control ◽  
Time Varying ◽  
Probe Signal ◽  
Noise And Vibration ◽  
Residual Signal ◽  
Active Noise

ANALYSIS OF THE FACTORS DECREASING THE EFFICIENCY OF OPERATION OF ACTIVE NOISE AND VIBRATION CONTROL SYSTEMS IN DUCTS AND THE WAYS OF IMPROVEMENT OF PROTECTION

Akustika ◽  
2021 ◽  
pp. 205-209
Author(s):  
Andrey Vasilyev
Keyword(s):  
Control System ◽  
Vibration Control ◽  
Control Systems ◽  
Active Noise Control ◽  
Medium Temperature ◽  
Noise And Vibration ◽  
Active Systems ◽  
System Protection ◽  
Active Noise ◽  
Operating Medium

The factors influencing on the active noise and vibration control system efficiency of operation and the ways of the system protection improvement are discussed. Analysis of factors decreasing the efficiency of operation of active noise and vibration control systems in ducts is showing that there are such factors as physical characteristics of operating medium (temperature, pressure, moisture, vibrations, dust), masking acoustic and vibrating interferences of other sources of noise and vibration etc., which may significantly reduce the efficiency, reliability and durability of active systems operation. The ways of improvement of protection of the elements of the active noise and vibration control system are discussed. Further improvement of active noise control and vibration system elements protection allows the system to operate with higher efficiency and reliability. Widely, achieving of good results in the solution of this problem helps us to extend the possibilities of active noise and vibration control systems practical application.

Active Rejection of Harmonic Disturbances with Nonstationary Harmonically Related Frequencies Using Varying-Sampling-Time LPV Control

2016 ◽  
Vol 248 ◽  
pp. 19-26
Author(s):  
Xin Yu Shu ◽  
Pablo Ballesteros ◽  
Christian Bohn
Keyword(s):  
Vibration Control ◽  
Fundamental Frequency ◽  
Sampling Time ◽  
Linear Parameter ◽  
Linear Parameter Varying ◽  
Noise And Vibration ◽  
Active Noise ◽  
Lpv Control ◽  
Parameter Varying ◽  
Time Linear

This paper presents a method for the active noise and vibration control (ANC/AVC) of harmonically related nonstationary disturbances using varying-sampling-time linear parameter-varying (LPV) controller. The frequencies are assumed to be known and varying within given ranges and they are multiples of one fundamental frequency.

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