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Effect of mooring line configurations on the dynamic responses of truss spar platforms

机译：系泊索构型对桁架梁平台动力响应的影响

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Considering the cost impact of mooring lines on the overall project, it is essential to find the best possible mooring configuration for a given platform and metocean data, which reduces the motion responses of the platform to an acceptable level. In this paper, the effect of symmetric and asymmetric mooring configurations in terms of line azimuth angles on the platform responses is studied. A truss spar platform is modelled as a rigid body with three degrees-of-freedom and the dynamic response analysis of the platform is performed in time-domain by computing the wave kinematics and water wave force using linear Airy wave theory and modified Morison equation, respectively. The responses of the platform are found to be not significantly affected by changing mooring line configurations in terms of azimuth angles. However, the initial offset of the platform is significantly affected with mooring line configurations. (C) 2014 Elsevier Ltd. All rights reserved.
机译：考虑到系泊缆对整个项目的成本影响，对于给定的平台和海洋数据，找到最佳的系泊配置至关重要，这将平台的运动响应降低到可接受的水平。本文研究了基于线方位角的对称和非对称系泊结构对平台响应的影响。将桁架梁平台建模为具有三个自由度的刚体，并通过使用线性艾里波理论和修正的莫里森方程计算波运动学和水波力，在时域内对平台进行动力响应分析，分别。发现平台的响应在方位角方面不受改变系泊缆线配置的显着影响。但是，平台的初始偏移会受到系泊缆线配置的严重影响。 （C）2014 Elsevier Ltd.保留所有权利。

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