Resistance

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Tractive effort = Train resistance F = W = W f + W i + W a + W b Running resistance: rolling on a straint and level track - <strong>Resistance</strong> of wheels - Friction of bearings - Air resistance Gradient resistance: force due to weight of the trainset on a gradient Acceleration resistance: force to accelerate the train Curve resistance: additional resistance during curves
Running (train) <strong>Resistance</strong> Internal resistance ( 列車機件間活動摩擦損耗 ) Axle loading related • Journal friction • Rolling resistance • Track resistance Speed related • Flange friction • Oscillation, swaying Square of speed related • Air resistance
Page 1 and 2: 行車運轉
Page 3 and 4: 黏著力 • 摩擦係數 •
Page 5: 阻力慣性重力摩擦
Page 9 and 10: Speed related Square of speed relat
Page 11 and 12: 歐洲鐵路坡度荷鐵
Page 13 and 14: Curve resistance 彎道阻力
Page 15 and 16: Equivalent Grade • 將彎道
Page 17 and 18: Source: 黃民仁 , 新世紀
Page 19 and 20: 機車牽引定數 (nominal tr
Page 21 and 22: Momentum grade Velocity head Source
Page 23 and 24: 假想坡度 (Virtual grade) •
Page 25 and 26: Conservative design: use 70% of mom
Page 27 and 28: Source: Hay, William W., Railroad E
Page 29 and 30: 影響列車運轉的因素
Page 31 and 32: Source : http://www.railway-technic
Page 33 and 34: 成功大學郭振銘老師

Resistance

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