浮擺式波浪發(fā)電平臺(tái)系泊系統(tǒng)設(shè)計(jì)及其穩(wěn)定性分析
[Abstract]:Most wave power generation devices need to be installed on the offshore floating platform. The stability of the platform is directly related to the operation effect of the power generation device and the safety of personnel and equipment. The stability of platform is not only limited by its own structure, but also can not be ignored by positioning system. This paper mainly studies the influence of mooring system on the stability of floating pendulum wave power generation platform. The research contents include the following four aspects: firstly, according to the positioning technology of the existing offshore platform, the positioning requirements of wave power generation equipment are discussed. This paper introduces the structural types and application examples of three main positioning systems for wave power generation platform, and puts forward some suggestions on the selection of positioning system for wave power generation platform according to the characteristics of various positioning systems. Secondly, the mooring system is designed for the mooring system of a floating tilting platform. The designed mooring type is a catenary single point buoy mooring with "platform-connecting cable-buoy-anchor chain". In the design process, based on the parameters of sea conditions in the experimental sea area, the system load is calculated, and the quasi-static analysis method is used to select and design the various components of the mooring system. The designed cable is a wire rope, the buoy is a cylindrical steel buoy, the anchor chain is a two-stage chain, and the working anchor is a AC-14 anchor. The designed system meets the safety requirements. Thirdly, using the hydrodynamic analysis software AQWA to simulate the rated sea conditions, the motion of the wedge platform with single point buoy mooring is simulated. By simulating the swinging, swinging and rolling motion of the platform at different wave incident angles, it is found that the wedge platform moves most intensely at the 45 擄wave incident angle, and at the 45 擄incident angle, The motion responses of the platform under different pre-tension conditions are simulated, and it is found that the motion of the platform is the most intense under the pre-tension condition of 6K N and 8K N. The simulation results show that the stability of the wedge platform with single point buoy mooring can meet the requirements of operation. Finally, the physical platform and the mooring system are modeled at 1:30, and the stability mechanism of the physical model is tested in the wave tank. According to the experimental results and the analysis of the actual sea conditions, it is proved that the mooring system designed by the model platform can maintain the normal operation of the platform and meet the requirements of stability under the conditions of sea conditions design.
【學(xué)位授予單位】:集美大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:P743.2
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