The Characteristic Of Environment And Waves Loads Causing Corrosion Fatigue Of Engineering Facilities In Ocean Splash Zone

As to provide the base for marine waves splash zone corrosion fatigue test> analysis and control, the thesis gives a simple and efficient application platform for corrosion fatigue engineering design and control technology in the marine splash zone,In order to research the corrosion laws caused by wave power and currents force such as corrosion fatigue, it is necessary to establish the spectrum of the tidal splash zone corrosion environmental and an additional alternating stress load, especially the changes and distribution in additional stress and load.The thesis integrates the single environmental factors of the splash zone such as the surface water temperature, surface temperature, surface salinity, variation of surface radiation characteristics to establish spectrum based on corrosion fatigue platform of marine splash zone, and using Access and C++language to create the simple and efficient database.This paper select linear Morison equation to evaluate the changes of wave load as to wave height and period variation; evaluate two kind of maximum wave load curve results, verify the cyclical wave loads; study the relationships of extrapolation table and picture-plans to achieve the feasibility of measured this relationship.The calculation equation which is developed by matlab makes the calculation process more simple and efficient. For calculating the characteristic corresponding law of wave height distribution along with the wave load in china, the thesis integrates the wave alternating load as an additional alternating stress load spectrum, combines with China's coastal the largest wave height, average wave height, the average effect period and the maximum effect cycle, area and seasonal distribution to analysis the regularity load spectrum based on corrosion fatigue loading platformThe paper provides the basis data for test, analysis and control of corrosion fatigue test in marine splash zone, prepares authentic pre-prepared work for the experimental research, and provides the necessary basic data and operating platforms for the corrosion fatigue analysis.