计算最小车辆转弯半径和通道宽度

计算最小车辆转弯半径和通道宽度

计算车辆最小转弯半径和通道宽度

情况1：

普通卡车转弯处

定义c = 2ml = 8md = 2mm = 1.792mb = 2.060mk =2.5mθ= 30°

r1 =√{[（L+D）/tanθ]²+c²}

r2 =√{[（L+d）/tanθ-（km）/2]+l²}+bm/2

R3 =（L+D）/SINθ=（8+2）/SIN30°

R1R2小于R3，因此R3用作计算标准（无路边屏障可以计算为R2）

R3 =（L+D）/SINθ=（8+2）/SIN30°= 20m

s =（L+D）/tanθ=（8+2）/tan30°= 17.32m

R = SK = 17.32-2.5 = 14.82m

宽度= R3-R = 20-14.82 = 5.18m

转弯角：t =/{s- [k-（km）/2]} = 27.8°

情况2：

拖车的所有者很短，副司机是领导者，而转折状态

定义c = 2ml = 8md = 2mp = q = 0.5mu = 4me = 1MK = 2.5mm = 1.792mb =2.060mθ= 30°

r1 =√{[（L+D）/tanθ]²+c²}

r2 =√{[（L+d）/tanθ-（km）/2]+l²}+bm/2

R3 =（L+D）/SINθ=（8+2）/SIN30°

r4 =√{√{√{{（l+d）/tanθ-k/2]²+（l+d+p）²-（q+u）²}+k/2}}+e²}

R1R2小于R3，可以控制R4，因此R3用作计算标准（在不同情况下转弯半径不同）

R3 =（L+D）/SINθ=（8+2）/SIN30°= 20m

s =（L+D）/tanθ=（8+2）/tan30°= 17.32m

R = SK = 17.32-2.5 = 14.82m

宽度= R3-R = 20-14.82 = 5.18m

（L+D+P）/（R+K/2）=（8+2+0.5）/（14.82+1.25）= 32.022°

（U+Q）/（R+K/2）=（4+0.5）/（14.82+1.25）= 13.977°

转弯角：©=（32.022°+13.977°）= 45.999°

验证在转弯不转弯时，验证汽车前部需要拉直所需的宽度：

t =√[s²+（l+d+p+q+u+e）]²=√[17.32²+（6+1+5）]²=√444= 21.07m

宽度= TR = 21.07-14.82 = 6.2513m

情况3

车主的汽车很长，子车很短，转弯状态

定义：c = 2ml = 8md = 2mp = q = 0.5mu = 4me = 1MK = 2.5mm = 1.792mb =2.060mθ= 30°

r1 = l/sinθ+（bm）/2 = 16.134m

r2 =√{（L+c）²+[l/tanθ+（km）/2]²} = 17.376m（请注意，θ与3和2不同）

蓝色三角形的长右边缘是：l/tgθ-m/2 = 17.32-1.792/2 = 12.96m

蓝色三角行的斜边是：√[12.96²+（2+ 0.5）²] = 13.2m

绿色三角形的长右边缘是：√[13.2²-（0.5+4）²] = 124m

R = R2-R = 12.4-2.5/2 = 11.16m

道路宽度= 17.376-11.16 = 6.22m

汽车的转弯角为：.96/13.2+.5/13.2 = 11°+20°= 31°

验证在转弯不转弯时，验证汽车前部需要拉直所需的宽度：

t =√[（11.16+2.5）²+（12+1+2.5）²] = 20.66m

道路宽度= 20.66-11.16 = 9.5m

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