简介:介绍深圳地铁龙岗线使用的LED信号机、EBILock9501R4计算机联锁系统,通过分析LED信号机控制电路以及故障报警的实现方式,阐述EBILock950R4计算机联锁系统和LED信号机以及报警仪的有效结合.
简介:Theextendingofacantileverandtransversemovingofadrillingfloorenablethejack-uptooperateinseveralwellpositionsaftertheJack-uphaspitched.Thecantileverallowableloadnephogramisthecriticalreferencewhichcanevaluatethejack-up’sdrillingability,designthecantileverstructureandinstructajack-upmanagertomaketheoperationssafe.Theintentofthispaperistoexploretheinterrelationshipsbetweenthecantileverposition,drillingfloorandtheloadsincludingwindforce,thestandset-backweightetc.,throughanalyzingthestructureandloadcharacteristicsofthex-typecantileverandthesimplifiedmechanicsmodelwiththerestrictionofthemaximummomentcapacityofthecantileversinglesidebeam.Referringtoseveraltypicalpositiondesignsloadvalues,thecantileverallowableloadnephogramisobtainedbyusingthesuitableinterpolationmethod.Thepapergivesamethodforcantileverallowableloaddesign,whichisprovedreliableandeffectivebythecalculationexample.
简介:文章分析了镍氢电池充电系统的设计需求,提出了一种采用电压、温度和时间进行综合控制的充电管理方案,设计了基于M68HC7056PE的新型大功率智能充电器,同时给出了该系统的软硬件设计方法。