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Reliability Analysis of the Utilization of the Waste Platform for Marine Energy Power Generation

Author: ChenChao
Tutor: KangHaiGui
School: Dalian University of Technology
Course: Port, Coastal and Offshore Engineering
Keywords: Existing Waste Offshore Platform Marine Energy Power Generation Static Analysis Dynamic Analysis Reliability
CLC: U656.6
Type: Master's thesis
Year: 2009
Downloads: 153
Quote: 0
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Abstract


In recent years,the problem of environment pollution which is brought by excessive consumption of energy is increasingly serious,our government has attaching more importance to the new clean and renewable energy resources.There are many active and under-building marine structures in our country.It may bring great economical and social benefit in using these marine buildings to develop marine renewable sources.Offshore platform is usually used in drilling and oil extraction,it will lose its original value when it can’t be used as offshore platform or the oil extraction is over,but the infrastructure of waste offshore platform still have some value in use.This paper focusing on the existing waste jacket offshore platform,using the existing waste offshore platform for tidal current and wind power generation.Firstly,calculate the corrosion condition of platform,establish finite element model of the platform and presents the static analysis for platform structure with ANSYS finite element analysis software,and checks intensity and stability of platform structure based on the results,make the pile foundations as a series of discrete cells,simulates the interaction of pile and soil with M method.Secondly,this thesis also presents modal analysis,harmonic response and seismic response spectrum analysis for platform structure,gains natural frequency and vibration mode, According to the rule of response which changes along with frequence,it also analyze lasting dynamic characteristics,and bases on the analysis results,it can to test if the structure could conquer the harmful effects,such as resonance,fatigue and so on.At last,considering the uncertainty of the load of jacket platform environment and the platform structural member,the paper introduces PSEFM to calculate the reliability of the platform structure,according to the result of reliability calculation with PSEFM,we get the calculation result of the reliability of platform structure members,make security evaluation for platform.

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CLC: > Transportation > Waterway transport > Port projects > Port of hydraulic structures > Floating platform
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