To decrease a calculation amount required when tire rolling resistance is analyzed using dynamic analysis.SOLUTION: A rolling resistance analysis method comprises: calculating, by a steady transport analysis part 24, free roll angular velocity ω0 at which rotation torque of a tire model 30 is zero, and performing a steady transport analysis based on the calculated free roll angular velocity ω0 to calculate a shape of the tire model 30 when rolling at the free roll angular velocity ω0; calculating, by a dynamic analysis part 26, a longitudinal force Fx applied to the tire model 30 at every minute time through dynamic analysis using the result of the steady transport analysis as an initial state; and calculating, by a rolling resistance calculation part 28, rolling resistance RR of the tire model 30 based on the longitudinal force Fx of the tire model 30 acquired by the dynamic analysis.SELECTED DRAWING: Figure 1

    【課題】動的解析を用いてタイヤの転がり抵抗を解析する際の演算量を低減する。【解決手段】定常輸送解析部24は、タイヤモデル30の回転トルクが0となる角速度である自由転動角速度ω0を算出し、算出した自由転動角速度ω0において定常輸送解析を行って、自由転動角速度ω0で転動したときのタイヤモデル30の形状を演算する。動的解析部26は、定常輸送解析の結果を初期状態とする動的解析により、微小時間毎に、タイヤモデル30に掛かる前後力Fxを演算する。転がり抵抗演算部28は、動的解析で取得されたタイヤモデル30の前後力Fxに基づいて、タイヤモデル30の転がり抵抗RRを演算する。【選択図】図1


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    Title :

    ROLLING RESISTANCE ANALYSIS METHOD AND ROLLING RESISTANCE ANALYZER


    Additional title:

    転がり抵抗解析方法及び転がり抵抗解析装置


    Contributors:
    OKU YUKI (author)

    Publication date :

    2023-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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