Ch1.3 - 1 Ft = Ff Fw Fi Fj Ff F =f(ua W F W Ff Ff 2 1 uamax...

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1 第第第 第第第第第 第 第第第第第第第第第第第第第第第第第第 第第第 第第第第第第—第第第第第第第第第第第第第 第第第第
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2 j i w f t F F F F F + + + = 第第第 第第第第第第—第 第第第第第第第第第第第第 第 第第第第第第第第第第第第 F f + F W = f ( u a ) 第第第第第第第第 第第第第第 第第第第第—第第第第第第第 F f F f + F W
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3 F f F f + F W u amax 第第第 第第第第第第—第 第第第第第第第第第第第第 ' a u 第第第第第第第 F i =0 F j =0 F t = F f + F w 第第第第第第第第第第第第 第第 F f + F W F t5 第第第第第第第 第第第第第第第第第第第第第第第第第第第第第 1. 第第 u amax
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4 0 1000 2000 3000 4000 5000 6000 7000 8000 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 ua/ ( km/ h) F / N Ft 1 Ft 2 Ft 3 Ft 4 Ft 5 Ft 6 Ff +Fw u amax =205km/h 第第 A4 第第第第第—第第第第第第第 1 a /(km h ) u - ×
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5 [ ] ) ( 1 d d w f t F F F m t u + - = δ
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