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Ocean Buoys and Mast Dynamic Analysis and Optimization

Author: BaiQiang
Tutor: YangYongChun；YuanXin
School: Ocean University of China
Course: Hydraulic Engineering
Keywords: Ocean buoys Mast Dynamic response Ultimate load Structural optimization
CLC: P715.2
Type: Master's thesis
Year: 2008
Downloads: 115
Quote: 1
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Abstract


The 21st century is a new century of human development and utilization of marine. China has more than 18,000 kilometers of mainland coastline. China has ratified the United Nations Convention on the Law of the Sea, China has nearly 300 million square kilometers the waters under the jurisdiction of, the equivalent of one-third of China's land area. Piece of blue Homeland marine mineral, chemical, energy, biotechnology, space resources development and utilization of the battlefield. In recent decades, the reform and opening up has brought rapid development to the coastal areas of economic construction, port construction to coastal development, from the seaside shoals advantage of offshore oil and gas development, without exception, the use of buoys (including latent marked) monitoring equipment for measuring environmental data As a scientific basis for the engineering design. Domestic maritime sector imports a considerable number of small buoys and flow measurement equipment have been put into the work of dozens of coastal engineering point of service. So vigorously develop the buoy system for the development of marine resources and marine economic construction of our country into the marine century imperative. The buoys body is the the buoy system's foundation. The buoy body of design in addition to the extreme environmental conditions of the sea buoy deployment is based, to meet the requirements of our ship stability specification Unrestricted buoy also requires good with wave buoy self shake cycle avoid buoy laying the common sea wave cycle to avoid resonance may cause. , Drag and drop, towing, laying recycling, to facilitate maintenance. Therefore it is necessary to analyze the dynamic performance of the buoy. Reference as after the buoy body design, modification, anchor and dynamic characteristics analysis. The disc-shaped buoy 10 m in the free state and state constraints roll, heave movement response analysis, the response equation derived using wave theory. In the the dynamic simulation masts strength check, will buoy the response equation as loading conditions. Both static and dynamic strength check mast. Mechanical calculation method of the buoy mooring chain calculation, the amount of drift and anchor chain force made a more detailed description. Improved the structure of the mast from the force characteristics of the antenna mast angle from both static and dynamic strength of the masts check and verify the reasonableness of the structure. Certain height pole structure for future offshore platform design methods and technical support.

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CLC: > Astronomy,Earth Sciences > Oceanography > Marine survey and observation > Investigation and observation equipment > Buoyage
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