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1、V01.36No.6艦船電子工程總第264期122ShipElectronicEngineering2016年第6期潛器慣性類水動(dòng)力參數(shù)計(jì)算方法研究高峰1于秋禮2(1.91439部隊(duì)大連116041)(2.中船重工第七一。研究所宜昌443003)摘要為精確獲取潛器水動(dòng)力參數(shù),對(duì)慣性類水動(dòng)力參數(shù)常用計(jì)算方法進(jìn)行了總結(jié),給出了方程解析法、半經(jīng)驗(yàn)公式法和水池試驗(yàn)法優(yōu)缺點(diǎn)。在對(duì)慣性水動(dòng)力參數(shù)計(jì)算機(jī)計(jì)算方法研究的基礎(chǔ)上,提出一種以Hess-Smith面元法為理論依據(jù),獲取潛器慣性類水動(dòng)力參數(shù)的方法。編寫慣性類水動(dòng)力參數(shù)數(shù)值計(jì)算程序,計(jì)算結(jié)果與圓球、橢球,等簡(jiǎn)單幾何體慣性類
2、水動(dòng)力參數(shù)理論值對(duì)比,證明計(jì)算方法及所編程序的正確性,并探討了網(wǎng)格劃分形式和網(wǎng)格數(shù)量對(duì)計(jì)算精度的影響。最后以復(fù)雜構(gòu)型潛器為研究對(duì)象,計(jì)算其所受的慣性類水動(dòng)力參數(shù),與半經(jīng)驗(yàn)公式結(jié)果比較及定性分析,得知數(shù)值計(jì)算結(jié)果更具合理性。關(guān)鍵詞邊界元法;水動(dòng)力參數(shù);附加質(zhì)量;潛器中圖分類號(hào)TJ61+7DOI:10.3969/j.issn.1672—9730.2016.06.033CalculationMethodofInertialHydrodynamicParametersofUnderwaterVehicleGAOFen91YUQiuli2(1.No.91439Troops
3、ofPLA,Dalian116041)(2.No.710R&DInstitute,CSIC,Yichang443003)N晦tmctInordertopredictmaneuverabilityandmotionsimulationofunderwatervehiclewithcomplexconfiguration,itisnecessarytoderivethehydrodynamicparametersinadvance.Sothispaperaimstodeterminetheinertialhydrodynamicsforthegoverningequ
4、ationsofmotionforunderwatervehicle.Bysummarizingandcomparingseveralcomputationaltech—niquesusedtoderivinginertialhydrodynamics,acodewhichisbasedonHess~Smithpanelelementsmethodisprogrammedasausefultoolforinertialhydrodynamicsnumericalcalculation.Thenumericalresultsofanellipsoidandsphe
5、recalculatedbythecodewereconfirmedbythedataofthetheoreticalvalue,whichgivesconfidencethatthisapproachwillbeusefulforcalculatinginertialhydrodynamics.Essentially,thispaperislookingforageneralanswerastohowmanypanelsareenoughoveraprescribedgeometryinordertoaccuratelycapturethefloweffect
6、sbasedondifferentpanelresults.Thusinertialhy—drodynamicscalculatedbytheapproachispresentedandcomparedwiththesemi—empiricalvalue,whichshowsthattheap—proachcanbeusedtocalculatetheinertialhydrodynamicsoftheunderwatervehiclewithcomplexconfiguration.KeyWordsboundaryelementmethod,hydrodyna
7、micparameters,addedmass,underwatervehicleClaBsNumberTJ61+71引言潛器近年來(lái)在軍事、勘探、救援等領(lǐng)域得到廣泛應(yīng)用,潛器研究受到更多關(guān)注,潛器水動(dòng)力特性是潛器研究重要課題之一。潛器的水動(dòng)力特性對(duì)其整體布局、航行控制、能源需求、水下作業(yè)甚至布放回收均具有重要影響;同時(shí)潛器水動(dòng)力參數(shù)獲取也是其六自由空間動(dòng)態(tài)仿真和運(yùn)動(dòng)控制的前提與基礎(chǔ);另外對(duì)潛器進(jìn)行減振降噪研究也需考慮潛器的水動(dòng)力特性。由此可見(jiàn),潛器水動(dòng)力參數(shù)的精確對(duì)潛器的研發(fā)與設(shè)計(jì)具有重要意義。陳琪瑋給出了辨識(shí)航行體水動(dòng)力參數(shù)的智能計(jì)算方法[1],施小成給出利用
8、遞推最小二乘法估計(jì)潛器水