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简介：研究松弛状态下的非圆截面弹性螺旋细杆,即带有原始曲率和挠率的非圆截面弹性杆的平衡稳定性问题.基于Kirchhoff动力学比拟,建立用欧拉角表达的弹性杆动力学方程.忽略线加速度引起的微小惯性力,仅考虑截面转动的动力学效应,使欧拉方程封闭.证明松弛状态下的非圆截面螺旋杆无论在空间域或时域均满足一次近似意义下的Lyapunov稳定性条件.从而为螺旋形态弹性细杆存在于自然界中的广泛性和稳定性作出理论解释.提示负泊松比材料的螺旋杆可能不稳定.

简介：Anovelclassofintelligentpower-assistsystemsbasedondifferentialCVT；Developmentofhigh-strengthcasehardeningsteel；DevelopmentoftorquesensingLSDwithconeclutchaimingatsmallersizeandlighterweight；EffectofCoreHardnessandCaseDepthonLow-Cycle-Impact-FatiguePropertyinCarburizedSteel；EffectofcorehardnessandECDonlow-cycle-impact-fatiguepropertyincarburizedsteel……

简介：Minimizedrivelinegearnoisebyoptimizationtechnique；Modelingandcontrolofdual-motordrivingsystemwithbacklash；NVHrobustnessdesignofaxlesystems；Predictingunequalplanetaryloadsharingduetomanufacturingerrorsandsystemdeflections,withvalidationagainsttestdata；Rollingelementbearingsmakepossibleflexibleplanetarygears……

简介：Gearvibrationmodelingandfaultcharacterization；Productiondevelopmentprospectsforgear-cuttingtools；SelectinganewformulationofindustrialgearoilfocusonEPperformance；SyntheticIndustrialGearOilsGainImportance；

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简介：

简介：APowerTrainwithPlanetaryGearSystem:AdvantagesandaDesignApproach；Asplitpowercontinuouslyvariabletransmission(SPCVT)forbicycleuse；Astudyofshiftcontrolsuingtheclutchpressurepatterninautomatictransmission；Applicationofdynamicbandbrakemodelforenhanceddrivetrainsimulation；Applicationofinformationtheoryforstructure-basedratingofepicyclicgeartrains……

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简介：Anewmeasurementmethodfortherotationalmovementofgearundertransientstate-theapplicationtoanalyzegearnoiseduringacceleration；Aparametricstudyonthevibrationtransmissibilitycharacteristicsoftransmissionringgearstructure；Aprocedurefordeterminingtheefficiencyofacontinuouslyvariabletransmission；Activecontrolofgearnoiseusingmagneticbearingsforactuation

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简介：Effectiveproductiontechniquesdesignedtoimprovethecontactfatiguestrengthofautomatictransmissiongearteeth；Highfrequencygearwhinecontrolbydriveshaftdesignoptimization；Layshafitransmissiongearratioselection；Magnetoelastictorquesensorutilizingathermal-sprayedsense-elementforautomotivetransmissionapplications；TheAutarkHybridVehicle-OptimalEngineOperation……

简介：Bayesianreliabilitypredictionofgeardrivebasedonfuzzylifetimedata；DesignTechnologiesofIlighSpeedGearTransmission；Diagnosismethodofgeardriveineccentricity,wearandspotflawstates；FabricationofNdFeBthinfilmanditsapplicationinMEMS;Faultdetectioningeardriveswithnon-stationaryrotationalspeed-partI:thetime-frequencyapproach……

简介：我喜欢玩磁铁,对磁铁之间不接触就能够相互吸引或排斥的特点非常感兴趣。有一天,我在家安装四驱车齿轮时,突然产生一个想法:如用磁铁制作齿轮,那么不用接触就能传递动力,还具有摩擦小、不用润滑油、安装方便等诸多优

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简介：

简介：Adeterministicelastohydrodynamiclubricationmodelofhigh-speedrotorcrafttransmissioncomponents；Afiniteelementmethodforthedynamicanalysisofautomatictransmissiongearshittingwithafour-degree-of-freedomplanetarygearsetelement；ANewDynamicModelofHysteresisinHarmonicDrives；Anintegratedenvironmentformodeling,simulationandcontrolofharmonicdrivesystems；DesignAndApplicationOfCrownWheels

简介：Astudyongearhoningusinggrindingwheelshapedininternalgear；Astudyongearhoningusinggrindingwheelshapedininternalgear(experimentalverificationoneffectivenessofproposedhoningmethod)；DistortionoftheInternalGearbyInductionHardeningandMeasuresofControl；Hobcuttingprofiledeviationofgearcoupling-pinion。

简介：一、启发提问图７－７７１．如图７－７７，⊙Ｏ１、⊙Ｏ２沿直线Ｏ１Ｏ２作相向运动，请观察：（１）两圆有无公共点？若有公共点？有几个？（２）在哪几个位置时⊙Ｏ１与⊙Ｏ２有一个公共点？（３）在什么位置时⊙Ｏ１与⊙Ｏ２有两个公共点？２．设⊙Ｏ１的半径为ｒ，⊙Ｏ２的半径为Ｒ，Ｏ１Ｏ２＝ｄ，试用ｄ、Ｒ、ｒ之间的数量关系表示两圆的五种位置关系．３．若两圆相切，则连心线必过．４．连心线是一条直线，相交两圆的连心线公共弧．二、能力训练１．填空图７－７８（１）设⊙Ｏ１、⊙Ｏ２的半径分别为ｒ、Ｒ（Ｒ≥ｒ）．Ｏ１Ｏ２＝ｄ，那么：①如图７－７８，⊙Ｏ１与⊙Ｏ２相离，则ｄＲ＋ｒ．②如图７－７９，⊙Ｏ１与⊙Ｏ２外切，则．③

简介：PLC控制人机界面一线速度自动补偿。软辊自动修复。相位电动调整。美国进口软套。挡纸板电动调整。送纸系统四杆联动，快速准确。主电机变频调速，步进电机微调