Application of In-situ Observation to Brake Friction

摩擦面観察装置の応用

The in-situ observation of friction surfaces is conducted under the wet conditions in this report. Three kinds of friction materials removed from the commercial pads are used for the experiment. The friction coefficient and the friction behavior of each pad material are investigated. The difference of friction phenomenon between the cast iron and the glass used as the disc rotor is clarified, and the validity of replacing to the glass rotor for the observation is considered. Moreover, it is speculated that the coefficient of friction varies correspondingly to the mixture of debris and moisture, and its moisture ratio.ディスクブレーキのパッドとディスクの間に水が入ると摩擦係数（μ）が変動し異音の原因となることが知られている．そこで，ピン・ディスク試験機を用い，μ特性の整合性を確認しながらディスクを鋳鉄からガラスに置き換えて摩擦面を観察した．その結果，摩耗粉と水分率の関係がμ特性に大きく影響していることが判明した．

• Record URL:
  https://doi.org/10.11351/jsaeronbun.46.819
• Record URL:
  http://scholar.google.com/scholar_lookup?title=Application%20of%20In-situ%20Observation%20to%20Brake%20Friction&author=Y.%20Goto&author=N.%20Sugiura&author=Y.%20Nagasawa&author=Y.%20Akita&author=Y.%20Osawa&author=K.%20Abe&author=K.%20Kosaka&author=K.%20Okayama&author=S.%20Wakamatsu&publication_year=2015
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Goto, Yoshitsugu
  • Sugiura, Noboru
  • Nagasawa, Yuji
  • Akita, Yosuke
  • Osawa, Yoshihiro
  • Abe, Kenji
  • Kosaka, Kyoko
  • Okayama, Katsuya
  • Wakamatsu, Satoshi
• Publication Date: 2015-7

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 819-824
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 46
  • Issue Number: 4
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Brake pads; Cast iron; Coefficient of friction; Disc brakes; Friction materials; Glass; Moisture content; Tribology; Wear
• Uncontrolled Terms: Wet conditions
• Subject Areas: Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 01666824
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Apr 23 2018 4:47PM