Study on the Influence of Chamfer Perforation on Heave and Pitch of a Single Floating Platform

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2023-03-01 DOI:10.2478/pomr-2023-0005

Wei Wang, She-ming Fan, Y. You, Cheng Zhao, Liqun Xu, Guibiao Wang, Zhiqiang Lu

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Abstract

Abstract The aim of this work is to study the influence of chamfered perforation and chamfering on the heave and pitch motion of a single floating wind power platform with an anti-heave device. Firstly, the hydrodynamic performance of a single floating body with different chamfers, or without perforation, is calculated and analysed. Secondly, the motion of a model without perforation and with 35° chamfered perforation is captured and studied in a towing tank. The results show that when the wave height is large and the period is small, the perforated device has a certain effect. When the wave height and period are small, the pitch suppression effect of chamfered perforation is more obvious than that of non-chamfered perforation. When the period and wave height are large, the heave suppression effect of non-chamfered perforation is better than that of chamfered perforation. In experimental research, the perforated floating body has a certain effect on restraining the heave and pitch of a floating body under most working conditions, and the effect of restraining the pitch is obviously better than that of restraining the heave.

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倒角射孔对单浮平台垂度和节距影响的研究

摘要本工作的目的是研究倒角穿孔和倒角对带有防升沉装置的单浮式风力发电平台的升沉和俯仰运动的影响。首先，对具有不同倒角或无穿孔的单个浮体的水动力性能进行了计算和分析。其次，捕捉并研究了无穿孔和有35°斜切穿孔的模型在拖曳舱中的运动。结果表明，当波高较大、周期较小时，穿孔装置具有一定的效果。当波高和周期较小时，倒角射孔的节距抑制效果比非倒角射孔明显。当周期和波高较大时，非倒角射孔的垂荡抑制效果优于倒角射孔。在实验研究中，穿孔浮体在大多数工况下对浮体的升沉和纵摇都有一定的抑制作用，且纵摇抑制效果明显优于升沉抑制效果。

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