Feedforward control of double-panel casing for active reduction of device noise

Feedforward control of double-panel casing for active reduction of device noise

Blog Article

The active casing approach is a technique to reduce noise emission of devices and machinery Motor Armature Refacing Stick by controlling vibrations of their casings.This method was successfully validated by the authors for a single-panel casing in previous publications.However, if even higher noise reduction is required, a dedicated double-panel structure can be employed.In this paper, the sound insulation efficiency of a double-panel active casing is evaluated and compared with a single-panel structure by performing a series of laboratory experiments.

The least mean squares algorithm is used to adaptively update control filter parameters.A low-frequency noise in the range up to 500 Hz is considered.Advantages and limits of the proposed approach are pointed out and discussed, and Chainsaw Bars conclusions for future research are given.