简介:Inthispaper,a3Dsourcedistributiontechniqueisusedtocalculatethecoupledmotionsbetweentwoshipswhichadvanceinthewavewiththesamespeed.Thenumericalresultsofcoupledmotionsforafrigateandasupplyshiphaveagoodagreementwiththeexperimentalresults.Basedonthe3Dcoupledmotionsoftwoships,aspectralanalysisisemployedtoclearlyobservetheeffectofspeed,clearanceandwaveheadingonthesignificantrelativemotionamplitude(SRMA)oftwoships.Themethodpresentedinthispaperwillbehelpfultoselectsuitableclearance,speedandwaveheadingforunderwayreplenishmentatsea(RAS).
简介:TJD3型电动车辆减速器主要用于驼峰编组场一、二部位的调速,可做间隔制动设备,属双浮轨重力式车辆减速器。该设备是用电动器直接驱动的重力式车辆减速器,它是利用车辆自身的重量经过钳组转换成对车轮的侧压力实现对溜放车辆的制动减速,其制动力与车辆的重量成正比。