论文部分内容阅读
研究深海平台系泊系统松弛-张紧引起的系缆冲击载荷。考虑缆绳的粘-弹特性,建立缆绳-浮体系统冲击之后的运动方程,确定系统由无量纲的位移比、频率比和阻尼比决定的松弛一张紧区域,分析各个因素对系统松弛-张紧条件的影响。计算了不同参数条件下系泊系统的响应,分析了平台质量、缆绳长度、外激励幅值以及预张力等因素对缆绳内最大张力的影响,结果表明,缆绳内最大张力随着平台质量的增大、外激励的增大以及预张力的增大而增大,随着缆绳长度的增大而减小。
Research on deep sea platform mooring system relaxation - cable tension load caused by tension. Taking into account the visco-elastic properties of the cable, the equations of motion after the cable-buoyancy system impact are established, the relaxation-tensioning region determined by the non-dimensional displacement ratio, frequency ratio and damping ratio is determined. Conditions of influence. The response of the mooring system with different parameters was calculated. The influences of the platform mass, cable length, external excitation amplitude and pre-tension on the maximum tension in the cable were analyzed. The results show that the maximum tension in the cable increases with the increase of the platform mass Large and external excitation increases and pre-tension increases and increases, with the cable length increases.