Active Noise Reduction in Ducts of Actuating Dynamics Using Two Periodic Control Signals

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概要

• 論文の詳細を見る

• An actuating subsystem considered as a black-box transfer function in combination with real state space description of an acoustic duct is developed to establish a model for active noise control study. A periodic internal model that can generate 2 periodic signals is further connected to this model to design feedback active noise controllers to attenuate periodic disturbance as well as to improve noise reduction bandwidth. Both results of computer simulation and experiments demonstrate global noise attenuation at a large frequency bandwidth (∿71-Hz bandwidth of sound pressure attenuation ratio ≤0.5) along the duct after the control input location. In addition, the developed controllers can be applied for periodic disturbance of a varying frequency and attain effective noise reduction. Taken together, the proposed design method provides a feasible and applicable way for effective noise attenuation in ducts.

• 一般社団法人日本機械学会の論文
• 2001-06-15

著者

• Lin Jong-yih

  Department Of Mechanical Engineering National Chung Hsing University

• Liao Jinqi

  Department Of Mechanical Engineering National Chung Hsing University

• LIN JongYih

  Department of Mechanical Engineering, National Chung-Hsing University

• Lin Jongyih

  Department Of Mechanical Engineering National Chung-hsing University

• Liao Jin-Qi

  Department of Mechanical Engineering, National Chung Hsing University

関連論文

• Identification of Acoustic Impedance Using a Simple Genetic Algorithm
• Combined Feedback Design of Active Noise Control and Face Velocity Control Based on a Novel Secondary-Path Model of Speaker-Duct Systems
• Active Noise Reduction in Ducts of Actuating Dynamics Using Two Periodic Control Signals
• Application of Damped-Oscillation Control Signals for Wide-Band Feedback Active Noise Control in Acoustic Ducts

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