浅析小生境遗传模拟退火算法的液压集成块布局优化

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1、机床与液压Dec．2012HydromechatronicsEngineeringVo1．40No．24DOI：10．3969／j．issn．1001-3881．2012．24．O11AllocationOptimizationofHydraulicManifoldBlockBasedonNichingGeneticSimulatedAnnealingAlgorithmZHANGLijie，ZHANGYanhui，LIYukunHebeiKeyLaboratoryofHeavyMachineryFluidPower

2、TransmissionandControl，YanshanUnweni@，Qinhuangdao066004，ChinaAbstract：Allocationoptimizationofhydraulicmanifoldblock(HMB)isthefoundationforoptimi．zationdesignofHMB．Thispaperestablishesamathematicalmodelofmulti．objectiveoptimiza．tionwithperformanceconstraintsac

3、cordingtothestructuralfeatureofHMBanddesigncharac．ter．Thenthemathematicalmodelwassolvedbynichinggeneticsimulatedannealingalgorithm(NGSA)．TheexamplegiveninthispaperindicatesthatthelayoutoptimizationofHMBcanbewellcompletedbyNGSA，whichprovidesareferenceforallocat

4、iondesign．Keywords：hydraulicmanifoldblock，optimizationdesign，nichinggeneticsimulatedannealinga1．gorithmcreaseglobalsearchabilityandtheconvergence1．Introductionspeed[3]．ThepaperpresentsahybridalgorithmcombiningGAwithSA，whichsolvesthesingleob．Optimizationdesigno

5、fHMBisacomplicatedjectiveoptimizationproblemsofintegratedblockprocess．Andspacelayoutisthebasisofhydraulicchannelsnetworkl4I．Combine(1thebasicnichewithmanifoldblockdesign．AtpresentdesignersmostlyGAandSA，ahybridalgorithmisproposed．Thisa1．dependonexperiencesandsp

6、aceimaginationorsim—gorithmcanmaintainthesolutionsdiversity．Inaddi．plytheapplicationofasinglealgorithmsuchasge—tion，itcanenhancetheconvergencespeedandtheneticalgorithm(GA)orsimulatedannealing(SA)qualityofsolutioneffectively．Nevertheless，duetotoSOlVethelayoutpr

7、oblem[1—2]．Thespacelayoutthishybridalgorithmdoesnotconsidertheconstraintresultcannotguaranteetomeettheoptimalperform．rulesanddesignexperience，applicationresultsofanceindexbecauseofthediversityofallocationde．thishybridalgorithmshowthatitmaynotsatisfyac-signandt

8、hecomplexityofsolutionprocedure．tualrequirementofengineeringapplications．TothisGAshowsitsstrongglobaloptimalcharacteristicrespect，bycombiningthenichinggeneticsimulatedwhereasitscon