スタッドレスタイヤの氷路特性とμ-S曲線の関係 Study on the Frictional Property of Studless-Tires on Icy Roads, Part 3 Relationship between the Frictional Property of Studless-Tires on Icy Roads and the Friction Coefficient-slip Ratio Curves

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著者

    • 三橋 健八 MITUHASHI Kenhachi
    • Tire Materials Development Department, The Yokohama Rubber Co. Ltd. Tire Materials Development Department, The Yokohama Rubber Co. Ltd.
    • 伊賀 聖二 IGA Seiji
    • PC Tire Development Department, The Yokohama Rubber Co. Ltd. PC Tire Development Department, The Yokohama Rubber Co. Ltd.
    • 広木 栄三 HIROKI Eizou
    • Material Division, Hokkaido National Industrial Research Institute Material Division, Hokkaido National Industrial Research Institute
    • 飯田 一 IIDA Hajime
    • Faculty of Textile Science and Technology, Shinshu University Faculty of Textile Science and Technology, Shinshu University

抄録

For elucidating the tread wear mechanism of studdless tires on the icy road, we have conducted, μ-<i>S</i> curve analysis which principally yields the relationships between the friction coefficient, μ, and the slip ratio, <i>S</i>, and deformation analysis of small rubber blocks located between the sipes.<br>Then the following results were obtained.<br>1) μ-<i>S</i> curve can be formulated by the following regression equation;<br>μ=(a•S<sup>b</sup>-c)•exp(-S<sup>d</sup>)+c•exp(S<sup>e</sup>)<br>Where, μ is friction coefficient, <i>S</i> is slip ratio, and <i>a, b, c, d</i> and <i>e</i> are coefficients.<br>2) Resulted relationships between the shape of μ-<i>S</i> curve and tire performance on the icy road indicate that the tire performance enhances with loosening the sharpness of the μ peak shape.<br>3) The deformation analysis of small rubber blocks have reached an modified formula in which the degree of small rubber block deformation can be shown by an addition of bending deformation and the compression-shearing deformations. Using this formula, an amended equation of relationships between an inclined angle of the block and friction coefficient can be obtained, μ rock value obtained from dimensions of small rubber blocks of test tires with various number of sipes and from their modulus has corresponded with one obtained from substituting 100% for slip ratio in, μ-<i>S</i> curve regression equation. This verifies the effectiveness of the formula.

収録刊行物

  • 日本ゴム協會誌  

    日本ゴム協會誌 73(5), 267-273, 2000-05-15 

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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各種コード

  • NII論文ID(NAID)
    10004751599
  • NII書誌ID(NCID)
    AN00189720
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    0029022X
  • NDL 記事登録ID
    5369061
  • NDL 雑誌分類
    ZP17(科学技術--化学・化学工業--高分子化学・高分子化学工業--ゴム・プラスチックス)
  • NDL 請求記号
    Z17-125
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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