高密度硬盤磁頭形狀優(yōu)化設計.pdf

1、、。喇舔囟。2盟蟲乓!弦貽辯掃期些鰱掣墼鹺一0■學冬授霉位薄直冬垂彗鬟擘摯學孥；譬。：o=：：簪辯鴦負會圭席型連譚腎t叫”：：垂璺噬一t一，一■t“’。f’：王渣鼙二≥。一毛，，、、一。，’一、、。鼉?！?、ij4’j蔓≤jtlI一’。一。i_iIi1I；’∥。Ⅵ一0064。93月’，‘^、。。鬈7荔∥筍’tj。Jj。摯熬羅≯j囊j∥、。。。i‘：毽j77?！?fi英文摘要OptimizationofSliderAirBearingDe

2、signinHardDiskDriversFangWendingSupervisor：ZhangChuanhaiandChenYunfeiCoUegeofMechanicalEngineering，SoutheastUniversityHarddiskdrivescontinuetoincreasethedatastoragedensityTheflyingheights(FH)ofaifbearingsliders(ABS)shoul

3、dbelowerandlowertomeettherapiddemandsTheFHofCUlTenteommereialslidersisbelow30姍TheparametersofthesHderflyingattitudethatincludeflyingheight，pitchandrollanglesmustsarisfyverystrictperformancegoalsItispossibletoachievethemu

4、ltipledesigngoalswithmodemoptimizationtechniquesTKSpaperfocUSeSonthetopicofthesimulatedannealing(SA)algorithrnasitappliedtotheproblemofABSdesigninharddiskdrivesSimulatedannealingalgorithmisageneralizationofaMonteCarlomet

5、hodforexaminingtheequationsofstateandfrozenstatesofamultibodysystemItsconceptisbasedonthemannerinwhichliquid行eezeormetalsrecrystallizeintheprocessofannealing111estochasticglobaloptimizationtechniqueCangetglobaloptimainth

6、epresenceofmany10caloptimawithoutthecalculationofgradientstodeterminesearchdirectionsInthisPaDerasubambientpressuretriPadsliderWasdesignedfirstlyAnewrood嫡edReynoldsequationisusedtosolvetheultrathinfilmgaslubricationwitht

7、heFukui—KanekomodelconsideringhighKnudsennumbersSAisproposedtogettheoptimasteadyflyingattitudeofthesliderTheresultsshowthatrailwidth，taperlengthtaperheightpreloadanditspositionCallbeconsideredasdesignvariablesinslidercon

8、figurationdesigntoobtainabel凇flyingperformanceThenSAisemployedfortheoptimizationdesignofABSsurfaceThetriDadslidermentionedabovewastakenastheprototypeThestraightrailwidthandlengtll，thetaperheightandlengthandthetailrailwid

9、thandlengthweretakenasdesignvariablesrespectivelywithgivengeometricconstrainsAISO，theoptimizationdesignwasdonewhileallthegeometricparametersweretakenasdesignvariablesResuitsshowthatSAise佑cienttoproducetheoptimizedABSdesi