简介：Consideringtheshortcomingsoftheexistingvehicle-to-vehicle(V2V)communicationantennas,thispaperproposesaregularhexagonbroadbandmicrostripantenna.ByloadingshortingpinsandetchingV-shapeslotswithdifferentsizeateachangleoftheregularhexagonpatch,itrealizesimpedancematchingandobtainsbetterimpedancebandwidth.Thesimulatedresultsshowthattherelativebandwidthofthisantennareaches35.55%,coversthefrequencybandof4.74GHzto6.79GHz.Theantennaacquiresanomni-directionalradiationpatterninthehorizontalplanewhoseoutofroundnessislessthan0.5dB.Inaddition,theantennaismanufacturedandtested,whosetestedresultsarebasicallyconsistentwithsimulatedresults.Becausetheheightofantennais3mm,itiseasytobehiddenonroofofavehicleforV2Vcommunication.

简介：Fromtheviewpointsofenvironmentalprotection,supportfortheagedandensuringtherighttomobility,thereisaneedtodevelopanewtypeofmobilityvehiclethatprovidesmoreeffectivetransportation.Theauthorsproposeaninvertedpendulumvehiclewithpedalsasoneoftheformsofpersonalmobilityvehicles(PMVs).Inthispaper,thesteeringperformanceoftheinvertedpendulumvehiclewithpedalsisdiscussedbasedonexperimentsonaprototype.Fromtheexperimentalresults,itwasconfirmedthattheerrorsfromthefivesubjectsforthetargettrajectoryandthefive-gradeevaluationofthemaneuverabilityweresimilar.Finally,wecreatedaninvertedpendulumvehiclewithpedalstowhichwasaddedareactionactuatorforthesteeringsystem.Fromtheexperimentalresults,itwasfoundthatsettingappropriatefeedbackgainsforthehandlesteeringangleanditsrateofrotation,whichcontroltherightandleftwheeldrivingtorques,resultedingreatlyimprovedmaneuverability.

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简介：ThispaperisfocusedonthemodelidentificationofaMicroAirVehicle(MAV)instraightsteadyflightcondition.Theidentificationisbasedoninput-outputdatacollectedfromflighttestsusingbothfrequencyandtimedomaintechniques.Thevehicleisanin-house40cmwingspanairplane.Becauseofthecomplexcoupled,multivariableandnonlineardynamicsoftheaircraft,linearSISOstructuresforboththelateralandlongitudinalmodelsaroundareferencestatewerederived.TheaimoftheidentificationistoprovidemodelsthatcanbeusedinfuturedevelopmentofcontroltechniquesfortheMAV.

简介：海军和另外的国防部组织逐渐地为许多使命和应用对无人的表面车辆(USV)的使用感兴趣。术语USV指没有一个全体乘务员，操作水的表面的任何车辆。USV有潜力，并且在一些情况中表明的能力到到有人驾驶的力量的还原剂风险，提供必要力量增加完成军事使命，执行有人驾驶的车辆的任务不能，并且那么以一个方法，那为海军是买得起的。世界范围的USV活动以及USV的一般技术挑战的调查下面被介绍。对USV的一般描述与他们的典型应用一起被提供。开发USV的技术挑战包括它的智力水平，控制，高稳定性，和发展费用减小。通过研究人员的联合努力在全世界，USV的发展在不久的将来将进入一个新阶段，，，这被相信USV能很快在军事、平民的服务两个都广泛地被使用。

简介：Thereentrytrajectoryplanningforhypersonicvehiclesiscriticalandchallenginginthepresenceofnumerousnonlinearequationsofmotionandpathconstraints,aswellasguaranteedsatisfactionofaccuracyinmeetingallthespecifiedboundaryconditions.Inthelasttenyears,manyresearchershaveinvestigatedvariousstrategiestogenerateafeasibleoroptimalconstrainedreentrytrajectoryforhypersonicvehicles.Thispaperbrieflyreviewsthenewresearcheffortstopromotethecapabilityofreentrytrajectoryplanning.Theprogressoftheonboardreentrytrajectoryplanning,reentrytrajectoryoptimization,andlandingfootprintissummarized.Themainchallengesofreentrytrajectoryplanningforhypersonicvehiclesareanalyzed,focusingontherapidreentrytrajectoryoptimization,complexgeographicconstraints,andcooperativestrategies.

简介：Inthispaper,maximum-likelihood(ML)anditsrelaxationalgorithm,whichareusedtoidentifythemathematicsmodelofanunderwatervehicle(UV),arcdiscussed.Withthetrialdataofzigzagtests,thehydrodynamicderivativesoftheUVwereestimated,andtherelaxationalgorithmisconfirmedtohavebetterastringencyfromthecontrastbetweenthetwomethods.Thenasimulationenvironmentbasedontheseparametersisestablishedtoverifythevalidityandeffectofthesemeth-ods.Theresultshowsthemodeliscredibleandthemethodsareveryusefulfortheresearchofmaneuverabilityandadaptivecontrolofunderwatervehicles.

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简介：Itisanimportantcontrolprocesstooperatemotionofansubmergencerescuevehicle(SRV).Seeingthatthemotionofthesubmergencerescuevehicleisspecial,itisnecessarytoemploynon-linearpredictivecontrolsystem.Forthisreason,continuousdynamicperformanceofthesystem,thelogicalcomponentsandtheoperativerestraintsareexpressedasthenon-linearequationsofstatewiththeinequalityrestraints,andthemodelprincipleofhybridsystemisintroduced.TheconclusionshowsthatitcomestruetoexactlycontrolpositionandattitudeoftheSRVbymeansofnon-linearmodelpredictivecontrol.Thetestinamodelbasinhasalsoprovedthattheabovemethodsareefficient.

简介：Tomeettherequirementsfortheaerodynamicperformanceandthrustforcedemandedinhypersonicmissions,theintegrationdesignoffuselageandenginemustbeconsideredforhypersonicvehiclewithascramjetengine.Theconfigurationofwaveriderisatypicalhypersonicvehicleshape,whosefore-bodycancompresstheflowinadvanceandprovideuniformflowfortheairintake,andwhoseaft-bodyisusedasanexpansionsurfaceofnozzle.Inthepresentpaper,anengineeringmethodisappliedtodefinetotalaerodynamiccharacteristicsofanapproximatewaveriderconfiguration.Afinitevolumemethodbasedonthecenterofgridisalsoemployedtonumericallyinvestigatetheoutflowpassthesameconfiguration.Theflowfielddetailsandtheaerodynamicchanacteristicsatgivenconditionsareobtained.Theevaluationforthisconfigurationmaybeusedasaguideforthehypersonicvehicleexperiment.

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简介：ExtractedfromSecuritiesGuide1.Popularityofnewenergyvehicles—anirresistiblemarkettrend1.1ProgressofnewenergyvehiclesChinesePremierLiKeqiangsaidrecentlyonavisittoXi'anBYDAutosthatnewenergyvehicles,especiallynewenergybus,canlessenenvironmentandnoisepollution.Heencouragedtheuseofnew

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简介：道路方面障碍被构造保护旅客并且当车辆撞上一个障碍时，包含车辆。一般来说，如果，照原尺寸的碰撞测试需要被执行一几何上并且在结构上等价物障碍以前没被证明满足包含车辆并且为旅客保护浪费足够的冲击能的要求。因为照原尺寸的碰撞测试是很昂贵的，能在测试被测量的数据的数字通常被限制，并且在如此的测试获得好优秀大小不能总是是可能的，碰撞测试的可靠、有效的数字模拟因此是很有用的。这篇论文在车辆影响下面论述一个3栏杆钢道路交通障碍的有限元素模拟。表演层次在澳大利亚的标准AS5100定义为这些障碍的子句10.5被检查。数字模拟证明障碍能遇见低表演层次。然而，最大的减速比为旅客保护的可接受的限制高。如果在场，缘石发射车辆进障碍，允许在某些情形下面制服障碍的可能性，但是它重定向车辆并且减少事件角度，它在障碍上减少影响力量。进道路上的所有普通缘石侧面的进一步的调查应该被执行，当一仅仅缘石侧面在这研究被调查。

简介：StateofCharge(SOC)isusedtoadjusttheinitializationSOCvaluesoastomakeelectricvehiclesimulationresultsclosetorealvehicleperformance.ThispaperfirstlyanalysesthebatterySOCcorrectalgorithm,thenusesADVISORwhichisaelectricvehiclesimulationsoftwaretosimulateahybridelectriccarwiththreedifferentcasesofnoSOCcorrect,linearSOCcorrectandzerodeltaSOCcorrect,aswellasmakesthecompareandanalysisforthosesimulationresults.Intheend,anoverallconclusiontoSOCcorrectalgorithmisgiven.

简介：Ahybridcontrolplatformisinvestigatedinthispapertomitigatemicrovibrationstoagroupofvibrationsensitiveequipmentinstalledinamicroelectronicsfacilitysubjecttonearbyroadvehicle-inducedhorizontalandverticalgroundmotions.Thehybridcontrolplatform,onwhichmicroelectronicsequipmentisinstalled,ismountedonabuildingfloorthroughaseriesofpassivemountsandcontrolledbyhydraulicactuatorsinbothhorizontalandverticaldirections.Thecontrolplatformisanelasticbodywithsignificantbendingmodesofvibration,andasub-optimalcontrolalgorithmisusedtomanipulatethehydraulicactuatorswithactuatordynamicsincluded.Thefiniteelementmodelandtheequationsofmotionofthecoupledplatform-buildingsystemarethenestablishedintheabsolutecoordinatetofacilitatethefeedbackcontrolandperformanceevaluationoftheplatform.Thehorizontalandverticalgroundvibrationsatthebaseofthebuildinginducedbynearbymovingroadvehiclesareassumedtobestationaryrandomprocesses.Atypicalthree-storymicroelectronicsbuildingisselectedasacasestudy.Thecasestudyshowsthattheverticalvibrationofthemicroelectronicsbuildingishigherthanthehorizontal.TheuseofahybridcontrolplatformcaneffectivelyreducebothhorizontalandverticalmicrovibrationsofthemicroelectronicsequipmenttothelevelwhichsatisfiesthestringentmicroscalevelocityrequirementspecifiedintheBoltBeranek&Newman(BBN)criteria.

简介：这篇论文在一种控制体系结构上研究为自治在水下车辆(AUV)。在描述AUV控制系统的混合性质以后，我们在场层次AUV控制体系结构。建筑学在三层被组织：使命层，任务层和实行层。声明监督人和任务协调人是处理分离事件的二个关键模块，因此我们详细描述这二个模块。最后，我们执行了一系列测试验证这体系结构。测试结果证明AUV能有效地并且安全地执行自治使命。我们能断定控制建筑学有效、实际。