To provide a snow accretion body capable of appropriately predicting a snow accretion shape on a snow accretion body and appropriately suppressing snow accretion based on the predicted snow accretion shape.SOLUTION: Disclosed is a method for predicting a snow accretion shape for a snow accretion body. This method includes the steps of: calculating a reference angle at the end part corresponding to speed of air flow based on the reference speed of the air flow in a tangential direction of snow accretion at the end part of the snow accretion surface of the snow accretion body, which is determined on the basis of snow quality; setting an angle between the tangential direction of snow accretion at the end part and the direction orthogonal to the air flow; and predicting a cross-sectional shape of the snow accretion.SELECTED DRAWING: Figure 12
【課題】被着雪体に対する着雪形状を適切に予測し、予測された着雪形状に基づいて、適切に着雪を抑制することができる被着雪体を提供する。【解決手段】被着雪体に対する着雪形状予測方法であって、雪質に応じて予め定められた、前記被着雪体の被着雪面の端部における着雪接線方向の気流の基準速度に基づいて、前記気流の速度に応じた前記端部における基準角度を算出し、前記基準角度を、前記端部における着雪の接線方向と前記気流の直交方向との角度と設定し、前記着雪の断面形状を予測する。【選択図】図12
METHOD FOR PREDICTING SNOW ACCRETION SHAPE AND SNOW ACCRETION SUPPRESSING SHAPE OF SNOW ACCRETION BODY
着雪形状予測方法および被着雪体の着雪抑制形状
22.10.2020
Patent
Elektronische Ressource
Japanisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / G01W METEOROLOGY , Meteorologie |
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