简介:阐述了SOLAS对船舶双层底布置要求,分析了该要求的适用范围和双层底布置要求的内容,对因故不能满足船舶双层底布置要求的区域,给出了规范要求的底部破损稳性核算的一般步骤。结合实际案例,提出了在进行双层底布置和破损稳性计算中应注意的事项。同时,为了保证船舶的安全性,对船舶分舱布置设计提出了若干合理化的建议。
简介:Themethodofcoupledmodeisintroducedforinvestigationofbi-staticdistantbottomreverberationofimpulsivesourceinshallowwater,whichwillnotcontradictwithprincipleofreciprocityinallcases.Andthemethodofmulti-polefordirectionalsourceisalsointroduced.Itshowsthatincaseoflayeredmedium,intensityofbi-staticbottomreverberationwilldeceaseaccordingtothecubicpowerofreceivingtimet,andthetransversespatialcorrelationofbottomreverberationisalittlegreaterthanlongitudinalcorrelationforequalseparationofreceivers,andbothvaryinformwiththereceivingtime.