英语翻译The relation between the hydraulic cylinder force and the lateral fixation point force during testing of PIPE 9 (no lift force) and PIPE 10 (lift force) can be seen in Figure 5.11.Both forces increased until the end of Phase I was reached
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英语翻译The relation between the hydraulic cylinder force and the lateral fixation point force during testing of PIPE 9 (no lift force) and PIPE 10 (lift force) can be seen in Figure 5.11.Both forces increased until the end of Phase I was reached
英语翻译
The relation between the hydraulic cylinder force and the lateral fixation point force during testing of PIPE 9 (no lift force) and PIPE 10 (lift force) can be seen in Figure 5.11.Both forces increased until the end of Phase I was reached.In Phase II the hydraulic cylinder force still increased due to the decrease in the distance between the reel and the hydraulic cylinder.The lateral fixation point force remained constant,because the distance between the fixation point and the reel and the distance between the lift force and the reel remained constant.
Ovalisation of the pipe (f) affects the resistance of the pipe to collapse due to external water pressure and local buckling [23].Although the main objective of the small scale Small Scale Reeling Simulation of Single Walled Pipe 89 bending rig was to prepare for the full scale bending rig,ovalisation was investigated because of its importance during reeling.According to the DNV OS F101 standard [11],the amount of ovalisation due to bending,together with the out of roundness tolerances from the fabrication process of the pipe (Figure 5.12 and Equation (5.14)),should not exceed 3 %.
英语翻译The relation between the hydraulic cylinder force and the lateral fixation point force during testing of PIPE 9 (no lift force) and PIPE 10 (lift force) can be seen in Figure 5.11.Both forces increased until the end of Phase I was reached
测试管9(无向上的力)和管10(向上的力)时,液压缸的力和侧固定点的力之间的关系如图5.11所示.两种力一直增加,直到第一阶段结束.在第二阶段,液压缸的力仍然增加,因为轴和液压缸之间的距离减少.侧固定点的力保持不变,因为固定点和轴之间的距离以及升力和轴之间的距离保持不变.
管(f)的Ovalisation影响管崩溃的阻力,因为外部的水压和本身的弯曲[ 23 ] .虽然主要尺度——单壁管89弯曲装置的“小尺度弯曲模拟”是为最大程度的弯曲设备准备的,但是ovalisation因为它对轴的重要性而被调查.根据挪威船级社操作系统F101标准[ 11 ] ,弯曲导致的ovalisation的数额,再加上来自管的制造过程的圆的忍耐力【“忍耐力”,也可能是公差或容限】(图5.12和方程(5.14)),不应超过3 % .
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