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中文摘要：
群墩结构是海洋工程中常见的结构形式,而实际海洋中的波浪是多向不规则波浪。研究波浪的方向分布对于大尺度群墩作用具有重要的意义。基于Linton和Evans提出的规则波与群墩作用理论,建立了多向不规则波浪对大尺度群墩作用的计算方法。通过与物理模型试验结果的对比,对数值计算结果进行了验证。进一步计算了多向不规则波浪与两个串列和并列墩柱布置的群墩作用时,墩柱所受的波浪力及群墩系数。结果表面波浪的方向分布对波浪力和群墩系数都有明显的影响,尤其是对横向力,实际工程应用时应考虑波浪的方向分布特性。
英文摘要：
The cylinder array is a common marine engineering structure, but in reality, ocean waves are usually multi-directional irregular waves. It is of great significance to study the effect of wave directional distribution on the interaction of wave on an array of large scale cylinders. Linton and Evans＇ method about wave-cylinders interaction is used as the transfer function, which is combined with the multi-directional random waves to predict the wave loads on array of cylinders. The numerical calculation results are verified by the results of the physical experiment. Wave forces and the group coefficients for two cylinders in tandem and parallel layout are calculated. The results indicate that the wave directionality has great effects on the wave force and the group coefficients, especially to the transverse wave force.
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