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The Characteristic of Environment and Waves Loads Causing Corrosion Fatigue of Engineering Facilities in Ocean Splash Zone

Author: LiuZuo
Tutor: WangJia
School: Ocean University of China
Course: Marine Chemistry
Keywords: Ocean waves splash zone Environmental spectrum Load spectrum Rotten Corrosion fatigue Alternating cycle
CLC: U657
Type: Master's thesis
Year: 2010
Downloads: 101
Quote: 0
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Abstract


In order to provide relevant data to the Ocean waves splash zone facilities corrosion fatigue test analysis and control based resistance to corrosion fatigue of engineering design and development of corrosion fatigue control technology for this area to provide quick and easy application platform , this thesis established tidal range splash zone corrosive environment spectrum , especially additional stress load changes and distribution law , the establishment of additional alternating stress load spectrum , corrosion caused by the additional load due to wave force currents force law for the application of analysis such as corrosion fatigue is very necessary . This paper integrates a single environmental factors such as sea surface temperature , splash zone surface temperature , surface salinity of the splash zone , the splash zone surface irradiation , the establishment of the splash zone corrosion fatigue - based platform environment spectrum , and use Access and C language to create a simple and easy to operate database . Select the linear wave theory - Morrison equation evaluation of wave height , wave load cycle variation ; evaluation wave load force curves of two of the biggest wave loads results to verify the cyclical nature of the wave loads ; evaluation to explore wave height and load cycles role characteristics , study table values ??extrapolated normalized the Napo - cycle relationship with value specification query wave height - cycle relationship with the relationship of the measured wave height cycle and to calculate the query feasibility . Use matlab to write equations for calculating the calculation process simple and convenient . The wave cross- variable load impact the role of integration for additional cross- variable stress load spectrum , combined with the largest wave of Chinese coastal waves splash zone , the average wave height , wave average role cycle and maximum role cycle , waters and seasonal distribution , and use of data query retrieval analysis based corrosion fatigue the laws of the load spectrum characteristics of the load platform , calculate the the Chinese coastal wave height distribution corresponding to the law of wave load characteristics . This thesis for the analysis and control of corrosion fatigue testing of the Ocean waves splash zone facilities to provide relevant data based on the subject of experimental research in this area to prepare a rich and credible preliminary work to provide the necessary basic data and operating platform for corrosion fatigue analysis .

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