Development of an active noise control system for ventilation ducts based on directional control sources and robust control

• Project/Area Number: 20760276
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Control engineering
• Research Institution: Nagaoka University of Technology
• Principal Investigator: KOBAYASHI Yasuhide Nagaoka University of Technology, 工学部, 准教授 (50272860)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 制御システム / 能動騷音制御 / ロバスト制御 / 単方向制御音源 / 換抱システム / 能動騒音制御 / 換気システム

Research Abstract

Three control source structures for ventilation ducts are compared: directional source with single loudspeaker (proposed method); bidirectional source with single loudspeaker (existing method 1); directional source with a pair of loudspeakers (existing method 2). It has been shown based on a theoretical model that (i)larger phase lag in feedback path transfer function is achieved by using the existing method 2 compared with the existing method 1. Moreover, it has been shown based on a theoretical model and experimental results that (ii) the proposed method has the similar advantage to the existing method 2 with single loudspeaker.

Research Products

• [Presentation] Performance Limitations by Structures of Control Sources in Active Noise Control Systems of Ducts (2009)
  • Author(s): Yasuhide Kobayashi, Hisaya Fujioka, Naoki Jinbo, Yuichiro Hara
  • Organizer: 16th International Congress on Sound and Vibration (ICSV16
  • Place of Presentation: クラクフ(ポーランド)
  • Year and Date: 2009-07-08
• [Presentation] Performance Limitations by Structures of Control Sources in Active Noise Control Systems of Ducts (2009)
  • Author(s): Y.Kobayashi, H.Fujioka, N.Jinbo, Y.Hara
  • Organizer: 16th International Congress on Sound and Vibration (ICSV16)
  • Place of Presentation: クラクフ(ポーランド)
  • Year and Date: 2009-07-08
• [Presentation] 二音源を用いたダクト能動騒音制御系のロバスト安定性解析 (2008)
  • Author(s): 小林泰秀・藤岡久也
  • Organizer: 計測自動制御学会第37回制御理論シンポジウム
  • Place of Presentation: 鹿児島
  • Year and Date: 2008-09-17
• [Presentation] Analysis for robust active noise control systems of ducts with a pair of loudspeakers (2008)
  • Author(s): Yasuhide Kobayashi, Hisaya Fujioka
  • Organizer: 15th International Congress on Sound and Vibration (ICSV15)
  • Place of Presentation: 大田(韓国)
  • Year and Date: 2008-07-08