To provide a contact phase detection method capable of accurately detecting a contact phase while suppressing an arithmetic load.SOLUTION: A contact phase detection method detects a contact phase Φ0 that is a phase of a contact point of a wheel 110 of a railway vehicle 1 rolling on a rail R with a rail, and is configured such that an output fluctuation history corresponding to one rotation of the wheel of wheel weight bridge circuits p1, p2 that are constituted by sequentially connecting a plurality of strain gauges provided with the wheel and generate an output corresponding to wheel weight is approximated by Fourier series, and a contact phase is obtained based on an odd number of Fourier coefficients of three or higher order.SELECTED DRAWING: Figure 13
【課題】演算負荷を抑制しつつ接触位相を精度よく検出可能な接触位相検出方法等を提供する。【解決手段】レールR上を転動する鉄道車両1の車輪110のレールとの接触箇所の位相である接触位相Φ0を検出する接触位相検出方法を、車輪に設けられた複数のひずみゲージを順次結線して構成され輪重に応じた出力を発生する輪重ブリッジ回路p1、p2の車輪1回転分の出力変動履歴をフーリエ級数近似し、3次以上の奇数次のフーリエ係数に基づいて接触位相を求める構成とする。【選択図】図13
CONTACT PHASE DETECTION METHOD, ATTACK ANGLE MEASUREMENT METHOD, CONTACT PHASE DETECTION DEVICE, AND ATTACK ANGLE MEASUREMENT DEVICE
接触位相検出方法、アタック角測定方法、接触位相検出装置、及び、アタック角測定装置
2021-03-04
Patent
Electronic Resource
Japanese
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