Reduction method of disk brakes squeal focused on nonlinear dynamics of brake pad stiffness

• Project/Area Number: 23760209
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Dynamics/Control
• Research Institution: The University of Shiga Prefecture
• Principal Investigator: OURA Yasunori 滋賀県立大学, 工学部, 助教 (60512770)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 振動解析・試験 / ディスクブレーキ / 鳴き / ブレーキパッド / ヒステリシス / 自励振動 / 静的な剛性 / 動的な剛性 / 静剛性 / 動剛性

Research Abstract

Static stiffness of brake pad influences brake feelings. On the other hand, the stiffness of the pad when vibration is added to the pad is larger than static stiffness. This stiffness in dynamic condition depends on brake pressure and this is one of the causes of squeal generation. In this study, we developed the equipment which can measure both static stiffness and stiffness in dynamic condition. This equipment is useful to develop a brake pad with sufficient braking performance and squeal less

Research Products

• [Journal Article] Comparison of Pad Stiffness under Satatic Pressure and Vibration with Small Amplitude (2012)
  • Author(s): Yasunori OURA, Yutaka KURITA, Yukio,NISHIZAWA and Kyoko KOSAKA
  • Journal Title: Proceedings of 30th Annual Brake colloquium & Exhibition
  • DOI: 10.4271/2012-01-1818
  • Peer Reviewed
• [Journal Article] Influence of Pad Thickness and Surface Roughness on Pad Stiffness (2012)
  • Author(s): Yukio NISHIZAWA，Kyoko KOSAKA，Yutaka KURITA and Yasunori OURA
  • Journal Title: Proceedings of SAE Brake Colloquium and Exhibition 2012 Volume: SAE Technical paper
  • DOI: 10.4271/2012-01-1817
  • Peer Reviewed
• [Journal Article] nfluence of Pad Wear on Pad Dynamic Stiffness (2012)
  • Author(s): Kyoko KOSAKA,Yukio NISHIZAWA,Yutaka KURITA and Yasunori OURA
  • Journal Title: Proceedings of Europe's braking technology conference & exhibition 2012
  • URL: http://www.eurobrake.net/
  • Peer Reviewed
• [Journal Article] ディスクブレーキの鳴きに及ぼすパッドの表面性状の影響 (2012)
  • Author(s): 西澤幸男,栗田裕,大浦靖典,小坂享子
  • Journal Title: 日本機械学会論文集C編 Volume: 78巻786号 Pages: 382-395
  • NAID: 130002051309
  • URL: https://www.jstage.jst.go.jp/browse/kikaic/-char/ja/
  • Peer Reviewed
• [Journal Article] Influence of Pad Wear on Pad Dynamic Stiffness (2012)
  • Author(s): Kyoko KOSAKA，Yukio NISHIZAWA，Yutaka KURITA and Yasunori OURA
  • Journal Title: Proceedings of Europe’s braking technology conference & exhibition 2012 Volume: EB2012
  • Peer Reviewed
• [Journal Article] Influence of Pad Surface Texture on Disk Brake Squeal (2011)
  • Author(s): Kyoko Kosaka, Yukio Nishizawa, Yutaka Kurita and Yasunori Oura
  • Journal Title: Proceedings of 29th Annual Brake colloquium & Exhibition
  • DOI: 10.4271/2011-01-2354
  • NAID: 130002051309
  • Peer Reviewed