外文翻译--固定卷扬式启闭机的模糊优化.doc

1页外文资料翻译PrefaceLong-termsince,hydropowerengineeringfixedrollYangtypehoist(hereinafterreferredtohoist)designhavebeenusedforexperience,notonlylogic.analogdesignmethodforthedesigncyclelonger,andonlyafewschemecomparisonandanalysis,noexactevaluationstandardtomeasurehaveoptions,thereisgetjudgedalmostoptimaldesign.Withthedevelopmentandapplicationoftheelectroniccomputer,itcanestablishadesignprocessautomaticallychoosethemosteffectivemethodofoptimalscheme,namelyoptimizationdesign.Thisdesignmethodismathematicalprogrammingandcomputertechnology,thecombinationofthesolutionofcomplicateddesignproblemcanbecomeatool.However,duetodesignsomefactorssuchasloadingproperties,materialqualityisdifficulttousemathematicalquantitysaid,leadingtothedesignambiguity.Ordinaryoptimizationmethodhasnotconsideredthesefuzzyfactors,lackoftreatingfuzzyconceptmeansandmethods,manyfactorsofartificialasdeterminedtoundertakehandling,orrandomnessoftenmissedtherealoptimizationschemeandevencontradictoryresults.Thisishoistordinaryoptimizationdesigndifficulttoreallybeengineeringandtechnicalpersonneltoaccepttherootcausesoftheplace.Hoistthefuzzyoptimizationcanovercometheshortcomings,itcommonoptimizationstudyofhoistoptimizationprocessprevalentambiguity,usingthetheoryoffuzzymathematicsandsystematicallyanalyzingthemachineandpulleyinstitutions,hoisting,atransmissionmechanismandframestructure,electricalsystemsandsoonvariousagenciesinternalandexternallinks,reasonablydeterminetheparameters,calculationandinordertoachieveoptimizationpurposes.Usingfuzzyoptimizationdesignnotonlycanbreakthroughthetraditionaldesignpattern,overcomeexperience,isusedbymanyanalogyorassumptionsandsimplifythecalculationformulaisderivedfordesign,checking,calculation,andmanylimitationswhencanovercomeordinaryfuzzyoptimizationdesignproblem,arigidignoretheconstraintconditionsoffaults,makecomplexproblems,blurvariableaccurateconstraintconditionsforfuzzyconstraintconditions,makeadesignmorequicklyandmoreaccurate,morereliableandmoreconvenient.Thismethodcangreatlyshortenthedesigncycle,reduceproductmaterialconsumption,improveproductprecisionandperformance,andaccesstothehugeeconomicbenefits.Therefore,hoistthefuzzyoptimizationwillbecometheindustry2页manyresearcherspursuitofthegoal.1fuzzyoptimizationresearchreviewed1.1fuzzytechnologyIn1965,theUnitedStatesCaliforniauniversityprofessorl.a.zadehFuzzy(firstlyputforwardtheconceptofFuzzy)settheory,viaM.Sugeno,basedontheefforts,manyscholarsinthe1970sestablishedabetterfuzzymathematicstheorysystem.Infuzzymathematicstheorydevelopedonthebasisofhigh-tech-fuzzytechnologyisonly20yearshistory,butitinmechanical,electrical,chemicalindustry,lightindustry,aviation,civil,geology,waterconservancy,meteorology,enterprisemanagementandsocialeconomicandotherfields,theboomingitsapplicationhascreatedhugeeconomicbenefitsandsocialbenefits.Japaninordertoensurethatthecompetitivenessofthe21stcentury,establishingfuzzybasicresearch,fuzzycomputer,machineintelligence,man-machinesystem,peopleandsocialsystemandnaturalsystemsandsoonsixfuzzytechnologykeyareasfordevelopment.TheUnitedStatesunwillingfallbehind,mainlydiscussedtheneuralnetworkandfuzzylogic,andheldthecombinationofonceinternationalfuzzytechnologyseminar.Francetotideneuro-fuzzyinstitutewasestablishedtocomprehensiveplantodevelopfuzzytechnology.Germanyselectronicandinformationdepartmenthasmadefuzzytechnology,asoneoftheimportantresearchtopic.TheAmericanmarketinformationresearchcompany(MIBC)latestsurveyresultsshowthatbytheendofthiscentury,fuzzytechnologyworldmarketswillbe30timesgreaterthanitisnow.FuzzytechnologyresearchinJapan,theUnitedStates,Germany,France,SouthKoreaandothercountriesisalreadyachievement.Ourcountryinfuzzytechnologyresearchhastheirowncharacteristics,mainperformanceinfuzzymathematicstheoryresearchisverystrong,butthelackofdiscipline,thecrossoverbetweenapplicationbackgroundisnotobvious,thedrivingforceisnotstrong,theactualapplicationresearchisweaklinks.1.2fuzzymedicineInthepast10years,thedomesticandforeignsomemechanicalscienceworkeriscontinuousefforts,thefuzzymethodusedinthemachinerysciencewithclassicsetdescribingallconcept,principleandmethod,thefuzzymathematicsextendedtoskinnedpeopletothetheoryofcomplexanddynamicmechanicalsystemfuzzinessofunderstanding,graduallyformedandimprovedfuzzymechanicalscienceandtechnologytheorysystem,thefuzzymedicinehas3页researchoraresubjectsofstudyare:(1)artificialintelligenceandfuzzyexpertsystem；(2)fuzzyrobottechnology；(3)fuzzyneuralnetwork；(4)thefuzzycontroltheoryandapplications.(5)fuzzyidentificationandfaultdiagnosis(6)thefuzzycomprehensiveevaluation；(7)fuzzyclustering；(8)thefuzzyoptimization；(9)fuzzyreliability.Alloftheseresearchsubjectallachievedresearchresultsandaremadeimportantprogress.1.3mechanicalfuzzyoptimizationInmechanicalpartsandmechanicalsystemdesign,designqualitystandard,materialstrengthandapplicablescope,certainloaddistributionandproperties,especiallyfocusingontheeconomyandefficiencyofoptimization,alltheindicatorsarefuzzy,theapplicationofthefuzzyoptimizationtheorycanwillInthedesignofthefuzzyfactorsandfuzzyinformationgivenbyreasonablequantitativerestraintfunction,theobjectivefunctionoftheallowablevalue,expectationsandfuzzydistributionfunctiontoreflecttheexperience,viewsandexpertthedesigncriterionofsomerecognized.SouthwestjiaotonguniversityprofessorHuangHongZhongstudiedthebasicideaoffuzzyoptimalmachinethefuzzyoptimizationproblem,researchintothemethodoffuzzyoptimizationproblem.ShandonguniversityoftechnologywasstudiedChenJuhuasfuzzymulti-objectiveoptimizationmethod,theoptimumsimilarityscale,mathematical,theweightingfactorandsexualmodalanalysis,etc.Allthesestudieshavemadegreatprogress.Atpresent,themechanicalstructureoffuzzyoptimizationhasmadegreatachievements,institutionsandoverallfuzzyoptimizationstillneedsfurtherresearch.1.4domestichoistoptimizationresearchHoistthetraditionaldesignmethodtoclassicalmechanicsandmathematicalbasis,usinghalftheory,halfthedesignmethodandexperienceofanalogyMethod,designprocess,cycleislong,repeatedlydesignaccuracyispoor.Inrecentyears,withtherapiddevelopmentofthecomputertechnology,andmanycrossDisciplinesofmodemdesignmethodsgetapplicationssuchaslimitstatedesignand4页optimizationdesign,reliabledesign,CAD,finiteelementmethod,thedynamicsimulationdesign,modulardesign,threedesign,universaldesign.Thesemoderndesignmethodmakeshoisterdesignintotheinnovation,highquality,andhighefficiencyofthenewstage.Amongthem,theoptimizationdesignresearchthemostwidelyused.WuhanuniversityofhydraulicandelectricengineeringprofessorLiChunstudiedthehoisterforschemeoptimizationmodeling,optimizationmethods,hoistCAD；TheoriginalelectricXueRuiBaoprofessorialseniorindo-chinasurveyanddesigninstitutestudiedhoistexpertsystem；ChinamininguniversityprofessorSunYouLanstudiedthestructuraloptimizationhoister,allthesestudieshaveyieldedfruitfulresults.Unfortunately,sofar,theseresultshaventallthepracticalapplicationengineeringdesignandmanufacturing.Withfuzzymechanicalscienceandtechnologydevelopment,hoistthefuzzyoptimizationresearchwillbecometheimportantindustrydevelopmentdirection.Becausefuzzyoptimizationreflectsintermediarytransitionwidespreadfuzziness,reflectthequantitativestudyfromphysicalfieldsintooneoffieldmustmeetfuzzyconcepts,reflectthehoistsystemmustinvolvevariousfuzzyfactors,reflectthequantitativevalueoffuzzyattribute,whichwillpushtheoptimizationofhoisterenteranewclimax,thusdevelopedcanbeengineeringofgenerallyacceptednewachievementsinscientificresearch.2hoistfuzzyoptimizationpracticalsignificanceHydropowerresourcesinourcountryhave37853millionkilowatts