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Deformation Analysis Of Whole Vessel In Navigating State

Posted on:2005-03-29Degree:MasterType:Thesis
Country:ChinaCandidate:S M ChenFull Text:PDF
GTID:2132360125970831Subject:Ships and marine structures, design of manufacturing
Abstract/Summary:
With the development of the technology of the missile's emission, it has increasingly been the focus of navy in most countries of aiming precision, which makes the elastic deformation more essential. The purpose of the thesis is to improve the precision of missile launching, and to expatiate and analyze elastic deformation of the whole vessel in varieties wave loads. The main works are summarized as following:1) Introduce the principle of how to establish FEA model especially to analyze vessel deformation; generalize characteristic of modelization of deformation analysis; discuss deformation responses of the whole vessel under different load cases.2) Take advantage of spectrum analysis to calculate statistics of deformation responses on the structure; analyze and generalize the law of deformation on the whole vessel.3) Introduce variable of time, to analyze characteristic of instant deformation in oblique waves.4) Use curve fitting method, analyze fitting deformation results on the basis of different basic points; compare to results from FEA calculation, and then choose the optimized fitting method.5) Use curved surface fitting method, to analyze the rule of main deck's deformation in oblique wave; present method of sub value and combination to analyze torsion deformation.
Keywords/Search Tags:FEA, spectrum analysis, deformation response, fitting, aiming
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