基于遺傳模擬退火算法的PCB貼裝工藝優(yōu)化研究.pdf

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2、STRACTSurfacemoullttechnology(SMT)hasalreadybeenwidelyappliedtoprintedcircuitboard(PCB)productioninordertomeettheneedofboardlevelcircuitmodulesformilitaryelectronicequipmentofaconsiderablevariety，variablerequirementofbat

3、ch，shortperiod，lowcost，highquality，miniaturizationaswellasfastupgradeAsurfacemountplacementmachine，whoseassemblyplanningisthebottleneckoftheproductiVityimpr0VementofSMTsystem，isthemostimportantequipmentoflhewholesystemTh

4、ispaperconsiderstleproblemofoptimizingthePCBassemblyplanningwhichcontainsseVeralheadsandtypesofcomponents，andtheintentionistoproposeanoptimizationmethodwhichhaSabetterperformance，lowercomplexityandhi曲erpmcticability，soth

5、atwecanreducetheoverallassemblytimeandimprovethesystemproductivi阱TheassembIyplanningofgantrymachineswasanaIyzed，andt11enanintegratedoptimizationmodelwasfoundedaccordingtothefactorsweinducedthatafl’ectedtheemciencyTheadVa

6、ntagesanddisadVantagesofgeneticalgorithms(GA)andsimulatedannealingalgorithln(SA)wereanalyzedFitnesslinearscaling，crossoVerandmutationoperationofGAweremodifiednrstly，andaspecialchromosomecodingandencodingmethodwasproposed

7、accordingtoassemblycharacteristicsTheimportantp啪metersofGAandSAweredesignedcarefullyForthenrsttime，ageneticsimulateda1111ealingalgorithm(GSA)，whichcombinestheadVantagesoftheGAandSA，wasemployedtoplanPCBassemblyTheresultss

8、howthattherequiredtimeformountingelectronicpartscanbedecreasedobViously，andourmethodcanresolVetheproblemmoreeff色ctiVelythanunitaryGAandSAKeyword：geneticalgor“hmssimuIatedannealingalgor“hmoptimizationprintedcircuitboardsu