学科分类
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500 个结果
  • 简介:是地质钻探行业必备的机械设备。主要介绍了YDG200型全液压液压系统的工作原理,根据的工作要求,设计了基于PLC的电气控制系统,实践表明,采用PLC实现的电气控制系统提高了的性能和工作稳定性。

  • 标签: 液压系统 镦管机 PLC控制系统 工作原理
  • 简介:近期,记者获悉,由国际紧固件机械和供应者协会及国际线材协会共同主办的”2007国际紧固件、精密冷锻件制造及国际线材展览会”于2007年5月7~10日.在美国的北方城市克利夫兰市国际会展中心举行。齐二机床与日本阪村公司合作研发的BP-430SS型自动螺栓锻机首次赴美参展,受到了国外客商和参观者的好评。

  • 标签: 镦锻机 美国 螺栓 研发 日本 国际会展中心
  • 简介:AStudyonHandoverandChannelAllocationSchemewithCostFunctioninLowEarth-OrbitalSatelliteSystems,Astudyontheshort-circuitcapabilityoffield-stopIGBTs,ATutorialonOpticalNetworks,ATwo-Cell-LookaheadCallAdmissionandHandoffManagementSchemeforMultimediaLEOSatelliteNetworks,AbstractSpecificationinObject-ZandCSP,ACCEPTANCEOFINTERNETCONTENTFILTERS:ANEMPIRICALSTUDY,AccurateandEfficientPredictionofCoverageMapinanOfficeEnvironmentUsingFrustumRayTracingandIn-SituPenetrationLossMeasurement.

  • 标签: 预镦 价值函数 低地轨道 卫星系统 IGBTs 网络优化
  • 简介:AnewmethodofblockingfaultdiagnosisonstatorwindingbasedonANN;AnewSi:CepitaxialchannelnMOSFETarchitecturewithimproveddrivabilityandshort-channelcharacteristics;AnewvalidatedphysicallybasedIGCTmodelforcircuitsimulationofsnubberlessandseriesoperation;ANovel100MHz-40GHzRFTerminationwithBiasNetworkforOpticalSystems;Anovelchannelallocationschemeinintegratedwirelessandmobilenetworks

  • 标签: 预镦工艺 计算机仿真 人工神经网络 温度分布
  • 简介:Detectingthegazedirectionforamanmachineinterlace;Developmentincardoorlatchingsystems;Developmentof1600N/mm{sup}2glassultra-high-strengthbolts;Developmentofamicrorobotbasedmicropositioningstation:themicrorobotanditspositionandorientationmeasurementmethod;DevelopmentofNavigationSensorUnitfortheAgriculturalVehicle;Dual-UseSignalProcessingforaMultiple-SensorSystem:SonarandOpticalImageProcessingforUnderwaterObstacleAvoidance

  • 标签: 顶镦工艺 锻造流程 精度控制 自动化系统 车门锁定装置
  • 简介:StudyofinfluenceofomnidirectionalcompressionstressesandhotplasticdeformationonweldingoffragmentsofSwarfbars;Testanalysisofenhancedlightweightaluminiummaterials;TheinfluenceofthemartensitictransformationonthehichtemperatureplasticityoftheNi-Al-Cuβintermetallicphase;ThetemperaturedependenceoftheanisotropicNdFeBfalvicatedbysinglestagehotdeformation;Thermo-mechainicalTreatmentwithMulti-directionUpsettingforImprovementofSuperplasticityinSUS304;

  • 标签: 镦锻工艺 全向压力 塑性形变 铝合金焊接
  • 简介:Observationsofbarrellinginaluminiumsolidcylindersduringcoldupsettingusingdifferentlubricants;Observationsonfractureinaxi-symmetricandthree-dimensionalcoldupsettingofbrass;Parallelprocessingof3Drigid-viscoplasticfiniteelementanalysisusingdomaindecompositionandmodifiedblockJacobipreconditioningtechnique;ParameterstudyintothefrictionweldingoftheintermetallicTiAIandthealloyTi6AI4V

  • 标签: 镦锻工艺 平行处理 粘塑力学 有限元 铝合金
  • 简介:APracticalNlulti-wordComparc-and-SwapOperation;Apriority-bascdchannelallocationschemeforcellularnetworks;Aproposalofamethodforlimitingholdingtimetoguardemergencycommunicationsfromtrafficcongestionincellularsystemsduringmajordisasters;AQoSProvidingMultimediaAdHocWirelessLANwithGranularOFDM-CDMAChannel;AQoSRoutingMechanismforReducingtheRoutingInaccuracyEffects;AQoS-AwareHandoffusingRSVPinNextGenerationWirelessNetworks;

  • 标签: 预镦工艺 锻压 交换操作 信息存储 CAS2
  • 简介:High-PerformanceComputing:Past,Present,andFuture,Importanceofrandomfrequencyspacinginshipmotionsimulation,In-flightalignmentofSDINSunderlargeinitialheadingerror,Inspectionacceptanceinterpretationforflower-shapedwasherheads,InterconnectIPsteersSoCintegrationintothefastlane,IntroducingtheElectricVehicleinNewYorkCity.CommunityLevelActionstoSpurtheUseofElectricVehicles.

  • 标签: 顶镦 高性能计算机 商业超级计算机 运算速度
  • 简介:Expandedheadingcapacities;ExperimentsinCalibrationofanInertialMeasurementUnitlorUUVApplications;FABRICATIONOFMAGNETICACTUATORFORUSEINCAPSULEENDOSCOPE;FlockingofAutononmusUnmannedAirVehicles;FO-DIASproject:anoverviewandthedevelopmentstatus;FootprintGenerationforReusableLaunchVehiclesUsingaDirectPseudospectralMethod;

  • 标签: 顶镦工艺 锻压 内部测量 直接伪光谱法
  • 简介:对10B21冷钢盘条出现的冷开裂现象,用光学显微镜、扫描电镜、直读光谱仪对缺陷部位进行了显微组织、化学成分等分析。结果表明,冷开裂是由钢坯裂纹缺陷所导致,且通过Ti元素的加入,杜绝了钢坯裂纹的产生。

  • 标签: 10B21 冷镦钢 盘条 开裂