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  • 简介:摘要:文中主要介绍了VERICUT 9.1软件中FORCE模块的优化方法方式、操作流程及基于该软件生成的优化文件在数控机床上的应用情况。VERICUT软件中FORCE模块根据加工材料、刀具、机床、参数来生成高效的数控程序,不改变原程序的运行轨迹,最终实现节省加工时间,提高生产效率,降低加工成本。

  • 标签: FORCE模块 VERICUT9.1 切削参数 程序优化
  • 简介:英文原名:G-Force中文译名:豚鼠特工队/超鼠特攻/鼠胆妙算电影宣传语:Theworldneedsbiggerheroes.

  • 标签: 小学 英语教学 教学方法 阅读
  • 简介:D-Force是一家以桌球游戏为主的娱乐会所。游戏如一场微缩的故事,开局、角逐、高潮、结局;游戏拥有许多戏剧的元素,从不明朗的开局到最终的胜负,中间的角逐就是游戏的魅力。D-Force企图用空间去表达这种游戏的状态。

  • 标签: 会所 游戏 娱乐
  • 简介:Magneticforcetransmissionofareciprocatingmotionisstudiedbytheoreticalanalysisandexperiment.Amathematicalmodelforcalculatingthemagneticforceisderivedusingthetheoryofequivalentmagneticcharges.Anexperimentalrigisconstructedtotestthetransmissionandthemodelisverifiedbyexperiment.Effectofthetransmissionparametersonthemagneticforceisanalyzedtheoreticallyfromthemodel,andcharacteristicofthetransmissionisstudiedexperimentally.Sincethetransmissioniswithoutdirectcontactbetweentwoelements,itissuitableforapplicationinanorganism.

  • 标签: 往复运动 磁力 理论分析 数学模型
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  • 简介:一条高速公路在江西省被构造,中国,彻底地多山的区域。高速公路的一些节通过了在哪儿的山谷6的软泥土层-8.5m深被遇到。一个新爆炸方法为这个工程被开发并且采用。在这个方法,爆炸被用来与压碎的石头移开并且代替软泥土。爆炸费用被放在根据某个模式要改善的土壤。压碎的石头在费用被安装的区域后面被积累。爆炸在爆炸区域移开大多数土壤并且引起压碎的石头的堆积滑动进土壤被爆炸移开的区域。Aformular被建议计算使用改进土壤的某个类型的费用重量。方法的Theeffectiveness用地上凿穿探索被评估,板负担测试,探查andground雷达测试。

  • 标签: 爆炸力 人行道 公路 基础改进
  • 简介:IntroductionDigitalstronggroundacelerationobservationinstrument,suchasPDR1,SSA1andSSR1producedbyKinemetricsInc.,USAandSCQ?..

  • 标签: successive FORMULA method\ FORCE BALANCED accelerometer\
  • 简介:Tochangeflightdirection,flyinganimalsmodulateaerodynamicforceeitherrelativetotheirbodiestogeneratetorqueaboutthecenterofmass,orrelativetotheflightpathtoproducecentripetalforcethatcurvesthetrajectory.Inemployingthelatter,thedirectionofaerodynamicforceremainsfixedinthebodyframeandrotationsofthebodyredirecttheforce.Whilebothaforementionedtechniquesareessentialforflight,itiscriticaltoinvestigatehowananimalbalancesthetwotoachieveaeriallocomotion.Here,wemeasuredwingandbodykinematicsofcicada(Tibicenlinnei)infreeflight,includingflightperiodsofbothlittleandsubstantialbodyreorientations.Itisfoundthatcicadasemployacommonforcevectoringtechniquetoexecutealltheseflights.Weshowthatthedirectionofthehalf-strokeaveragedaerodynamicforcerelativetothebodyisindependentofthebodyorientation,varyinginarangeofmerely20deg.Despitedirectionallimitationoftheaerodynamicforce,pitchandrolltorquearegeneratedbyalteringwingangleofattackanditsmeanpositionrelativetothecenterofmass.Thisresultsinbodyrotationswhichredirectthewingforceintheglobalframeandconsequentlychangetheflighttrajectory.

  • 标签: 矢量 飞行方向 空气动力 操纵 飞行动物
  • 简介:鬼力量引起的错误在二种尺寸与平面接口为一个quasicontinuum方法被学习。为一种特殊情况,我们导出错误的分析表情,它被利用证明鬼力量可以为答案的坡度导致一个有限尺寸错误。错误指数地为腐烂离开接口的错误代数学地腐烂离开接口的错误表演的pointwise估计,比onedimensional问题的慢得多,。

  • 标签: 二维平面 连续介质 尺寸误差 指数衰减 解析表达式 点态估计
  • 简介:Basedonthe1stordercnoidalwavetheory,thewavediffractionaroundthepiergroupinshallowwaterisstudiedinthispaper.Theformulasforcalculatingthenonlinearwaveforcesarealsopresentedhere.Inordertoverifythetheoreticalresults,modeltestsareconductedinthewaveflumeinTheStateKeyLaboratoryofCoastalandOffshoreEngineeringlocatedinDalianUniversityofTechnology.TherangeofthewaveparametersintheexperimentsischaracteristicwaveperiodTg/d1/2=8.08-22.86,characteristicwaveheightH/d=0.10.45.Theresultsobtainedfromtheexperimentsagreewiththetheoreticalresultsquitewell.Itisshownthat,inshallowwaterthenonlinearwaveforcesactingonapiergrouparegreaterthanthosecalculatedbylinearwavetheory,thevalueofincrementinwaveforceincreaseswiththeincreasesofthenonlinearityofthewave.Inthewaverangestudiedinthispaper,thenonlinearwaveforcecanreachover4timestheforcecalculatecdbylinearwavetheory.Thus,itissuggestedthat,whenTg/d1/2>8,thewaveforceonthepiersinthepiergroupinshallowwatershouldbecalculatedbyusingthecnoidalwavetheory.

  • 标签: CYLINDER PIER GROUP WAVE FORCE SHALLOW
  • 简介:Amulti-functionsamplingsystemhasbeensetupinShanghaiShip&ShippingResearchInstitute(SSSRI)whereatestonthefluctuatingpressureoftwopropellermodelswerecarriedout.Thispaperdealswithastudyonthetechnicalproblemsconcerningthemeasurementandanalysistechniquesinvolvedinthetest.Thesamplingandprocessingprocedureofsignalisoneofthemajorfactorsaffectingtheac-curacyandstabilityofthepredictionoffluctuatingpressureinducedbypropeller.Integral-peri-odsampling,highenoughsamplingfrequencyandsuitableresolutionmustbekeptinsamplingandprocessing.Theprocedureofsamplingandprocessingshouldbevalidatedbystandardsignalcorrespondingtothebladefrequencyofdifferentordersincomparativetests.

  • 标签: fluctuating PRESSURE sampling PROCESSING MEASURING TECHNIQUES
  • 简介:Thesurfacemorphologyoffree-surfacePCLringedspheruliteswasinvestigatedbyusingatomicforcemicroscopy.ThespheruliteswereobtainedbycrystallizationofPCL/PVCblendsofdifferentcompositions.Itwasfoundthattheringedspheruliteexhibitedregularlyfluctuatingringsonitssurface.Comparedwiththebright-darkringpatternofthespheruliteunderapolarizingmicroscope,itwasprovedthattheopticalcharacteristicsoftheringedspheruliteunderpolarizingmicroscopecoincidedwithitssurfacecharacteristics.Thebrightringsinpolarizingmicrographsofthespherulitecoincidedwiththeconvexringsonitssurface,whilethedarkringscoincidedwiththeconcaverings.

  • 标签: AFM Surface MORPHOLOGY Ringed spherulites PCL/PVC
  • 简介:Lineardrivingforce(LDF)modeliswidelyusedinadiffusionprocess,However,thismodelhasinherentweakness.Whenthedimensionlesstimeislessthan0.1itsrelativeerrorisupto95%.Inthispaper,anewconcentrationprofileisproposed.andthenanewmodifiedLDFmodel(MLDF)isdeduced.Comparedwiththeexactsolutionofintraparticlediffusionequation,thetransientvolume-averageamountadsorbedcalculatedfromtheMLDFismoreaccuratethanthatcalculatedfromtheLDFmodel.Ifonetakes±10%relativeerrorforthelimitofvalidityofapproximation,thenewmodelisvalidwhenthedimensionlesstimeisjustlargerthan0.0002,whiletheLDFmodelisnotvaliduntilthedimensiontimeislargethan0.05,ThenewmodelissuperiortotheLDFmodel.ThenewconcentrationprofilescorrespondingtotheMLDFmodelaremuchclosetotheexactconcentrationprofileswithinaparticlethantheparabolicprofilescorrespondingtotheLDFmodel.

  • 标签: 吸附 扩散 线性驱动力
  • 简介:Mooringmodelexperimentandmooringlinetensiondeterminationareofsignificancetothedesignofmooringsystemsandberthingstructures.Thispapermainlyinvolves:(a)descriptionandanalysisofamooringmodelexperiment;(b)derivationofstaticequilibriumequationsforamooredshipsubjectedtowind,currentandwaves;(c)solutionofmo.oringequationswiththeMonteCarlomethod;(d)qualitativeanalysisofeffectsofpierpilesonmooringlineforces.Specialemphasisisplacedonthederivationofstaticequilibriumequations,solutionmethodandthemooringmodelexperiment.

  • 标签: berthed SHIP environmentalforces mooringline STATIC analvsis