低航速減搖鰭的升力特性分析及控制方法研究.pdf

1、哈爾濱工程大學(xué)碩士學(xué)位論文低航速減搖鰭的升力特性分析及控制方法研究姓名：魏鵬申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：檢測(cè)技術(shù)與自動(dòng)化裝置指導(dǎo)教師：梁利華201203低航速減搖鯖的升力特性分析及控制方法研究ABSTRACTNomatteratanVspeed，whiletheshipissailingonthesea，itineVitablemusthaVeswaymovementinwhichtherollin2motionismostsigninca

2、ntInthemoment，thefinstabilizeristhemosteffectiveandthemostwidelyusedactiveanti—rollingdeVice，itmainlyresistthedisturbancef’orcesbvtheliRonthefinstabilizer，anditsanti—r011ingeffectisupto90％However，thetraditional行nstabiliz

3、erhasadisadvantagethatitcanonlyreducer011ingwhentheshipspeedishighAtlowspeedoratanchor，itcan’treducerollingeffIectiVelyWiththedevelopmentoftheshipandmarineengineering，peoplemakeincreasingdemandsonther011stabilitvoftheshi

4、p，soiturgentlyneedtocreateafinstabilizerwhichcannotonlyreducer01lingwhentheshipspeedishigh，butalsoatlowspeedandeVenatanchorThisnewkindoffinstabilizerhasbeendevelopedinsomeothercountries，andbeenwidelyusedinthelargemotorVa

5、chtsItprovesthatthelowspeednnstab訂izercanachieVeagoodanti‘r011ingef佗ctatanVshipspeedinpracticeAsthereisnosuch10wspeed6nst￡【bilizerapplicationsinourcountry，theresearchofthelowspeednnstabilizerhasgreatpracticalslgm士IcanceA

6、tnrstthethesissummarizesthedevelopmentofthelowspeed6nstabilizerinothercountries，andanalysisthegenerating1iRprincipleandanti—r01lingprincipleofthelowspeed丘ntabilizerThenitresearchesthennpatternwhichis6tfbrthe6natlowspeedA

7、ccordingtotheknowledgeofthefluidmechanics，itanalysisthecompositionofthefluidforceonthe10wspeednnstabilizerandestablishesthesystemmathematicalmodelInordertoanalyzethehydrodynamiccharacteristicsofthe10w—speedfinst乏Ibilizer

8、，thethesisestablishesaphysicalmodelofthe10wspeednnstabilizer，andcarriesouttheumerlcalsimulationindifferentmotionswiththeFLUENTnuiddynamicssimulationsoRwareAnd1tanalvsist11einfluenceofdif佗rentmotioncontr01parameters(thesw

9、mgpenod，themaxlmumangle，thevelocity，theacceleration，thetimeofaccelerationandunif011m)，shiproUingandshipspeedontheliRofthe6nstabilizeratlowspeedFinallv，accordingtothecharacteristicsoflowspeednnstabilizeratlowspeed，thethes

10、isdetenllinesacontrolmethodofthe10wspeednnstabilizersystem：athighormiddlespeed，usingthetraditionalPIDcontrolmethod；10w，atlowspeedoratanchor，uslngthefuzzvcontrolmethodInadditionitestablishesthe“waVes—ship—finstabilizer”sy