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mooring cable
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  mooring cable
We will need to install a large winch that will be holding approximately 5000m of 25mm diameter mooring cable that we will be deploying.
      
We will require JASON II or similar and will also need to install a large winch for storage and deployment of a 25mm mooring cable.
      
Temperature and salinity probes are strung along the mooring cable at various depths to help identify the passage of different water masses.
      
Development of a nylon EOM mooring cable for moored ocean observatories.
      


With the recurreence method, a program for the solution of the basic equations of a flexible cable immersed in a uniform stream is given and examples about underwater towing and deep-sea mooring cables are calculated.Moreover a normalization analysis, by means of which all shapes of such cables can be reduced to a curve depending only on one parameter, is treated.The curve thusobtained is similar in geometry with the true shape of the cable, Their similitude ratio depends on the tension...

With the recurreence method, a program for the solution of the basic equations of a flexible cable immersed in a uniform stream is given and examples about underwater towing and deep-sea mooring cables are calculated.Moreover a normalization analysis, by means of which all shapes of such cables can be reduced to a curve depending only on one parameter, is treated.The curve thusobtained is similar in geometry with the true shape of the cable, Their similitude ratio depends on the tension in the cable.Thereby, with the aid of"The Normalization Graph of Cable"provided in this paper, the authors have discussed some practical problems, such as lessening the drift radius at mooring and increasing the depth of submersion of a towing body, and proposed a manual method with which under various boundary conditions the geometical shape and tension of a flexible cable can be easily calculated.It is found that the calculated results fitted the sea trial data well.

本文得出了用递推法解均流中悬索基本方程组的程序,并给出在水下拖索与深水锚索方面的计算实例。进而作了悬索的归一化分析。借此,一切悬索可归并成仅依赖于一个参量的曲线,该曲线与悬索真实形状几何相似,其相似比依赖于索内张力。 借文中所提供的“归一化悬索图”讨论了诸如提高拖曳器潜深、缩短锚距等实际问题。并提出了利用该图方便地手算任何边界条件下悬索几何形状及其张力的方法。 计算结果与实测符合较好。

In this paper the resistance,behaviour and calculation of underwater mooring cables and towing cables are explored,and the formulas of the resistance,resistance coefficients and the tension as well as the cable be- haviour of circle-section cables in a uniform stream are obtained.Then, according to these formulas a program is made,and an example about un- derwater towing is calculated.Moreover,a wind-tunnel test of circle-section cables with different streams and angles is carried...

In this paper the resistance,behaviour and calculation of underwater mooring cables and towing cables are explored,and the formulas of the resistance,resistance coefficients and the tension as well as the cable be- haviour of circle-section cables in a uniform stream are obtained.Then, according to these formulas a program is made,and an example about un- derwater towing is calculated.Moreover,a wind-tunnel test of circle-section cables with different streams and angles is carried out.The resistance coefficients thus obtained are compared with the theoretically calculated ones.It is found that the calculated results fit the test data well.

本文对锚索及水下拖索的阻力、性状及其计算问题进行了初步的探讨,得出了计算均流中圆形截面揽索的阻力、阻力系数、张力以及缆索形状的公式,并根据这些公式编制了计算机程序,同时运用此程序对水下拖索的实例进行了计算。另外,对各种不同流态、不同倾角下的圆形截面缆索、带整流扳缆索以及流线型截面缆索做了风洞试验,并将试验所得的阻力系数与本文导出的理论公式计算所得的阻力系数进行了比较,结果两者符合较好。

Through a model experiment study of a 175 000dwt bulk ca rgo ship moored in the big wind and wave , some regular patterns of mooring cable and fender forces changing with the env ironmental conditions (wind, wave and current) are derived under the conditions that the wind blows towards and from the shore. The effect of different draughts on the mooring system is also studied. This study is of important reference val ue to the mooring safety of a gigantic ship in storm.

通过对一艘 1 7.5万吨散货船的大风浪系泊模型试验 ,得出了在吹岸风和吹开风状态下 ,护舷和缆绳的受力随风浪流及风向角变化的一般规律以及不同吃水对船舶受力、系泊缆绳和护舷受力的影响 ,对巨型船舶的大风浪系泊有重要的参考价值

 
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