项目10货物装载技术任务3确定货物重心水平位置重车重心高6

Task3DeterminationoftheHorizontalPositionofGoodsGravityCentreandHeightofGravityCentreforLoadedCar项目10货物装载技术

Project10GoodsLoadingTechnology

任务3确定货物重心水平位置、重车重心高王晓明WangXiaoming货物装车后，车辆和所装货物通过加固成为一个整体，该整体的重心距钢轨面的高度称为重车重心高度。重车重心高一般不得超过2000mm，超过此限，应配重，或按规定限速运行知识点一确定重车重心高KnowledgePointIDeterminingtheHeightofGravityCentreforLoadedCarsAfterthefreightsareloaded,thecarsandtheloadedgoodsbecomeawholebyreinforcement,theheightoftheGravityCentreofthewholefromtherailsurfaceiscalledtheheightoftheGravityCentrefortheloadedcar.TheheightoftheGravityCentrefortheloadedcarshallnotexceed2000mmingeneral.However,ifitexceedsthislimit,itshallbeweighted,oroperateatthespeedlimitasspecified.装运危险货物的罐车重车重心限制高度不得超过2200mm双层集装箱车专用车装后重车重心高不得超过2400mmTheheightlimitofthecenterofgravityoftanktruckstransportingdangerousfreightsshallnotexceed2200mm.Afterthedouble-deckercontainercarsareloaded,theheightoftheGravityCentreforloadedcarsmustnotexceed2400mm.知识点一确定重车重心高KnowledgePointIDeterminingtheHeightofGravityCentreforLoadedCarsCalculationoftheheightoftheGravityCentreforaloadedcarwhencarryingoneload.一车装载一件货物时重车重心高的计算重车重心高度可按式计算：TheheightoftheGravityCentreforaloadedcarcanbecalculatedaccordingtotheformula:Q货freightQ总totalQ车carh车car

H

h货freight单件货物重车重心高计算示意图Schematicdiagramofthecalculationoftheheightofthecenterofgravityforaloadedcarwithsinglefreight知识点一确定重车重心高KnowledgePointIDeterminingtheHeightofGravityCentreforLoadedCarsExamplesfromthefield现场实例一件货物，重45t，长8m，高2.9m，重心距货物底面1.8m。使用一辆N17k平车（自重19.7t）装载，货物下垫2根横垫木，横垫木高190mm，计算重车重心高Apieceoffreightweighs45t,is8mlong,andis2.9mhigh,withtheGravityCentre1.8mfromthebottomoftheload,UseanN17kflatcar(19.7tdeadweight)toload,with2transversedunnageswhichare190mmhighunderthefreight.PleasecalculatetheheightoftheGravityCentrefortheloadedcar.Qcar知识点一确定重车重心高KnowledgePointIDeterminingtheHeightofGravityCentreforLoadedCarsAnswer解题（1）重车重心高TheheightoftheGravityCentrefortheloadedcarfreighweightself-weightunit：Qcar知识点一