遺傳算法的改進(jìn)及其在工藝方案優(yōu)化中的應(yīng)用.pdf

1、華中科技大學(xué)碩士學(xué)位論文遺傳算法的改進(jìn)及其在工藝方案優(yōu)化中的應(yīng)用姓名：王青青申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械設(shè)計(jì)及理論指導(dǎo)教師：胡于進(jìn)凌玲20080526華中科技大學(xué)碩士學(xué)位論文IIAbstractOptimizationofprocessplanningistheimptantmethodtoensureproductqualitytoimproveefficiencytoreducecost.Thisdissertationdiscus

2、sedtheresearchstatusinquoofComputerAidedProcessPlanningsystemProcessOptimization.Alayeredstrategytoprocessplanningwaspresented:FirstassembledtheprocessingmethodschainofmachiningfeaturesSecondstedtheprocessunitsindertosat

3、isfyOptimizationobjectivescommonsequencingconstrainsThenthewholeprocessroutewasacquiredbyingassistantprocesses.OnthebaseoftheadvantagesshtcomingsofGeicAlgithmsTournamentionwithparentoffspringcompetitionSimulatedAnnealing

4、incrossovervariationwereputfward.Theimprovementwasverifiedbysometypicaltestfunctions.Acombinatialoptimizationmodelfprocessschemeispresented.Theoptimizationgoalincludesbestmachiningqualitiesleastmachinekindshtestprocessro

5、ute.Basedontheanalysisoftypicalprocessplansfprismaticboxanapproachusedofgrouptechnologytodeterminethepriityofthemachiningunitwasputfward.Themathematicalmodeltotransfmcostsofmachinesfixturestoolsotherancillarycostsfproces

6、ssequencingoptimizationisconstructed.HolesMachiningPathPlanningissignificanttoimprovethemachiningefficiencyqualityofmultiholeparts.Amathematicalmodeltominimumproductioncostwassetup.Thecrespondingencodemodegeicoperationsf

7、theabovemodelweredesigned.Theoptimalsolutionontheuseofimprovedgeicalgithmswasidentifiedthreeinstanceswerevalidated.Thesoftmodulesfprocesssequencingoptimizationweredesignedachieved.IntheendthestructureinterfaceofProcessOp