简介:尊敬的各位领导、各位专家、同志们:正当全国深入贯彻党的十六大精神,落实“三个代表”重要思想,全路以跨越式发展战略为指导,推动各项工作有序开展,第五次大面积提速调图顺利实施的时候,迎来了《减速顶学术会议》的召开暨我国铁路车辆减速顶诞生30周年之际,我受国林理事长委托,代表中国铁道学会表示热烈的祝贺!今年是我国改革开放的总设计师邓小平同志诞辰100周年,回顾减速顶发展30年的历程,使我们深切体会到“科学技术是第一生产力”科学思想的伟大。30年来减速顶研究、设计、制造、施工、运营、维修部门的干部员工同心协力,艰苦奋斗,勇于创新;中国铁道学会减速顶调速系统委员会
简介:Thescaleeffectleadstolargediscrepanciesbetweenthewakefieldsofmodel-scaleandactualships,andcausesdifferencesincavitationperformanceandexcitingforcestestsinpredictingtheperformanceofactualships.Therefore,whentestdatafromshipmodelsaredirectlyappliedtopredicttheperformanceofactualships,testresultsmustbesubjectedtoempiricalcorrections.Thisstudyproposesamethodforthereversedesignofthehullmodel.Comparedtoageometricallysimilarhullmodel,thewakefieldgeneratedbythemodifiedmodelisclosertothatofanactualship.Anon-geometricallysimilarmodelofaKoreanResearchInstituteofShipandOceanEngineering(KRISO)’scontainership(KCS)wasdesigned.Numericalsimulationswereperformedusingthismodel,anditsresultswerecomparedwithfull-scalecalculationresults.Thedeformationmethodofgettingthewakefieldoffull-scaleshipsbythenon-geometricallysimilarmodelisappliedtotheKCSsuccessfully.