1425 トラクタキャビン内部空間の音響解析に基づくANCの2次音源配置(GS-10 制御手法,研究発表講演)

概要

論文の詳細を見る
Agricultural tractors are operated at high engine revolutions. Then, the operator hears annoying engine noises. The aim of this study is to improve cabin comfort by ANC system. In this paper, we examine ANC system arrangement based on an acoustical analysis inside the tractor cabin. By arranging secondary sources, increase of the controlled effect and Expansion of the controlled range is expected. We arrange secondary sources in an effective place based on acoustical analysis inside the agricultural tractor cabin. For the acoustical analysis, the finite element model of inside the agricultural tractor cabin and acoustic analysis software SYSNOISE was used. The control loudspeaker and error microphones are to be outside of the sound pressure nodal area at target frequencies. We decide the arrangement of secondary sources by sensitivity analysis. The arrangement determined in analysis was the most effective and the control range was the widest.
社団法人日本機械学会の論文
2005-03-18