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设备海运时固定钢丝绳的载荷计算
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钢丝绳
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海运
- 钢丝绳
- 海运
| 设备海运时固定钢丝绳的载荷计算 | |||||||||
| Load of Silings for Fixing Equipment during Sea Trandpotation | |||||||||
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| 设备重量 Weight of equipment | W= | 64700 | kg | ||||||
| 钢丝绳与甲板的夹角 Included angle between sling and deck | θ1= | 45 | 度 | ||||||
| 钢丝绳与甲板的夹角 Included angle between sling and deck | θ2= | 45 | 度 | ||||||
| 设备重心与左侧钢丝绳固定点的轴向距离 Axial distance from C.G.of equipment to the fixed point of left side sling | L1= | 11700 | mm | ||||||
| 设备重心与右侧钢丝绳固定点的轴向距离 Axial distance from C.G. of equipment to the fixed point of right side sling | L2= | 13700 | mm | ||||||
| 设备重心距地面高度 Height of equipment C.G.from ground | Hg= | 2228 | mm | ||||||
| 钢丝绳在设备上的固定点距地面高度 Distance between ground and the connecting point of sling to equipment | H= | 2228 | mm | ||||||
| 支座底板的长度 Length of support base plate | B= | 2940 | mm | ||||||
| 左侧钢丝绳固定点至右侧支座的轴向间距 Distance from the fixed point of left side sling to right side support | Ls1= | 19196 | mm | ||||||
| 右侧钢丝绳固定点至左侧支座的轴向间距 Distance from the fixed point of right side sling to left side support | Ls2= | 21200 | mm | ||||||
| 纵向惯性力Llongitudinal inertia force | F1=0.75W*9.81 | 476030.3 | N | ||||||
| 横向惯性力 Lateral inertia force | Ft=0.75W*9.81 | 476030.3 | N | ||||||
| 垂直向上的惯性力 Upward inertia force | Fv=0.2W*9.81 | 126941.4 | N | ||||||
| L=L1+L2 | 25400 | mm | |||||||
| 左侧钢丝绳的横向载荷 Lateral load of slings of left side | Ft1=FT*L2/L | 256756.5 | N | ||||||
| 右侧钢丝绳的横向载荷 Lateral load of slings of right side | Ft2=Ft-Ft1 | 219273.8 | N | ||||||
| F2=MAX(Ft1,Ft2) | 256756.5 | N | |||||||
| 左侧钢丝绳的垂直方向载荷 Upward load of slings of left side | Fv1=Fv*L2/L | 68468.4 | N | ||||||
| 右侧钢丝绳的垂直方向载荷 Upward load of slings of right side | Fv2=Fv-FV1 | 58473.01 | N | ||||||
| F3=MAX(FV1,FV2) | 68468.39 | N | |||||||
| 纵向惯性力引起的倾覆力矩 Overturning moment caused by longitudinal inertia force | Ml=F1(Hg-H) | 0.0 | N.mm | ||||||
| 横向惯性力引起的倾覆力矩 Overturning moment caused by lateral force | Mt=Ft(Hg-H) | 0.0 | N.mm | ||||||
| 每根钢丝绳在设备轴向的分力 Axial component of force of each sling | f1=F1/4 | 119007.6 | N | ||||||
| 每根钢丝绳在设备横向的分力 Lateral component of force of each sling | f2=F2/2 | 128378.2 | N | ||||||
| 向上惯性力引起的每根钢丝绳的垂直分力 Upward component of force of each sling caused by upward inertia force | fv1=F3/4 | 17117.1 | N | ||||||
| Ls= | 19196 | mm | |||||||
| 纵向倾覆力矩引起的每根钢丝绳的垂直分力 Upward component of force of each sling caused by longitudinal overturning moment | fv2=Ml/Ls/4 | 0.0 | N | ||||||
| 横向倾覆力矩引起的钢丝绳垂直分力 Upward component of force of each sling caused by lateral overturning moment | fv3=Mt/B/4 | 0.0 | N | ||||||
| （1）仅有纵向惯性力作用时 In case only longitudinal inertia force acts | |||||||||
| 每根钢丝绳在垂直方向的分力 Upward component of force of each sling | fv=fv2 | 0.0 | N | ||||||
| f'=fv/SINθ2 | 0.0 | N | |||||||
| 每根钢丝绳的载荷 Load of each sling | Fo1=MAX(f1/COSθ1,f'/SINθ1) | 168302.1 | N | ||||||
| （2）横向惯性力与垂直向上的惯性力同时作用时
In case lateral and upward inertia forces act simultaneously |
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| 每根钢丝绳在垂直方向的分力
Upward component of force of each sling |
fv=fv1+fv3 | 17117.1 | N | ||||||
| f'=MAX(f2/COSθ2,fv/SINθ2) | 181554.2 | N | |||||||
| 每根钢丝绳的载荷 Load of each sling | Fo2=f'/SINθ1 | 256756.5 | N | ||||||
| 结果： 每根钢丝绳的拉伸载荷
Result: tensile load of each sling |
F=MAX(Fo1,Fo2) | 256756.5 | N | ||||||
