聲納水下拖曳系統(tǒng)運(yùn)動姿態(tài)研究.pdf

1、江蘇科技大學(xué)碩士學(xué)位論文聲納水下拖曳系統(tǒng)運(yùn)動姿態(tài)研究姓名：馮甦申請學(xué)位級別：碩士專業(yè)：船舶與海洋結(jié)構(gòu)物設(shè)計制造指導(dǎo)教師：朱克強(qiáng)20050310AbstractIIAbstractTowedsonarsystemwasdevelopedinwesterncountriesin1960’sbecausethesonarthatequippedinnavalshipswaslimitedbyoceanenvironment.Cableisth

2、emajstructureinthetowedsonarsystem.Extremelylongthincanbeeasilyaffectedbywaveflowstructuresthatconnectedisitsmostlyacters.Untillate1960s’theprimaryanalyticalmethodsaresometypesofsemianalyticaltechniqueswhichcombinedresol

3、utionmethodwithnumericalmethodtosolvecontrolequationsofthewholestructuralsystem.Duringthatperiodacteristiccurvemethodintegrationmethodthatsolveasetofcoupledpartialdifferentialequationsdirectlyarethetypicalmethods.Withthe

4、appearanceofmecomplicatedcablesystemsmemecalculationsofthedynamicresponseofcablesystemscomefthoneofwhichisthesocalledlumpedparametermethod.Itovercomestheinconvenienceofplungingintothesolutionofpartialdifferentialequation

5、s.Inthisplanthemostcommonassumptionistoreplacetheunitofconcentratingmasseswithlinethetensioncanbededucedbythelocationofnodesaccdingtotherelationshipofstressstrain.Inthispaperthiskindofmodelhasbeenadoptedcablesystemsarere

6、gardedasaseriesofnodesthatareconnectedbymasslesssprings.Allthedistributingfcessuchasdampingweightofcableareconsideredasactingonthesenodes.Theequationsofequilibriumcontinuityhavebeenappliedtothesepointstodevelopasetofdisc

7、reteequationswhichwillthenbeensolvedbycomputerbyintegratemethod.Atlastthedrawingofcablelocationvelocityofnodestensionofnodescanbegivenout.Thisarticlewillexplainthebasicstaticdynamicmethodsofanalyzingcablesystembasedonthe

8、lumpedparametermodel.Theeffectofhydrodynamicsofstreamlinetowedcableactingontowedsystemwillbealsoexplained.Thisarticlewillintroducesomeoverseascableexperimentstheirresults.Theseexperimentscanbetheprecisioncriterionofcable

9、simulatingprogram.Inthisarticleacomparisonbetweenthesimulatingresultsofprogramexperimentresultswillbedone.ThecomparableresultsindicatethatthesimulatingresultsofSNAPLOADsatisfytheengineeringrequirements.Intheendtheunderwa