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1、第34卷第l0期哈爾濱工程大學(xué)學(xué)報(bào)Vo1.34№.102013年10月JournalofHarbinEngineeringUniversi0ct.20l3規(guī)則波中船舶甲板上浪模型試驗(yàn)研究段文洋,王瑞鋒,馬山,陳云賽(哈爾濱工程大學(xué)船舶工程學(xué)院,黑龍江哈爾濱150001)摘要:為研究船舶甲板上浪沖擊壓力的特點(diǎn)和規(guī)律,針對(duì)ITrC國(guó)際標(biāo)準(zhǔn)船模S-175進(jìn)行了水池試驗(yàn).模型試驗(yàn)采用自航模方式,同步測(cè)量了波浪參數(shù)、船舶運(yùn)動(dòng)、上浪高度、上浪沖擊壓力等時(shí)間歷程數(shù)據(jù).采用高頻率、大量程壓力傳感器通過改變浪高、
2、浪向、航速、船舶艏部外飄來分析這些因素對(duì)船舶甲板上浪的影響.試驗(yàn)結(jié)果表明:增大船舶艏部外飄對(duì)減緩船舶甲板上浪的作用不是非常顯著,在較高海情下還會(huì)加劇上浪;試驗(yàn)在國(guó)際上首次測(cè)到翻卷砰擊上浪壓力,數(shù)據(jù)顯示翻卷狀波浪直接沖擊甲板所產(chǎn)生的瞬時(shí)砰擊壓力對(duì)甲板的破壞性遠(yuǎn)遠(yuǎn)大于波浪涌上甲板,應(yīng)得到更多重視.關(guān)鍵詞:甲板上浪;模型試驗(yàn);相對(duì)運(yùn)動(dòng);沖擊壓力;規(guī)則波doi:10.3969/j.issn.1006—7043.201211042網(wǎng)絡(luò)出版地址:http://www.cnki.net/kcms/detail
3、/23.1390.U.20130917.2315.019.html中圖分類號(hào):U661文獻(xiàn)標(biāo)志碼:A文章編號(hào):1006.7043(2013)10.1209—06ModeltestforgreenwaterofshipsinregularwavesDUANWenyang,WANGRuifeng,MAShan,CHENYunsai(CollegeofShipbuildingEngineeringHarbinEngineeringUniversity,Harbin150001,China)Abstra
4、ct:Inordertostudythecharacteristicsandlawofgreenwaterimpactpressureofship,awatertankexperi—mentwascarriedoutfortheITYCinternationalstandardcontainershipmodelS-175.Inthemodeltest.theself-pro·pulsionshipmodelwasutilized.Thewaveelevation,shipmotions,wav
5、eheightofgreenwater,theimpactpressureonthedeckweresynchronouslymeasuredduringthemodeltest.Duringtheexperiment,thegreenwaterphenome—nonwasanalyzedbyusingthemeasureddatathroughparametervariationofaseriesoffactorsincludingincidentwaveheight,waveheadings
6、,shipspeedandthebowshapes.ItwasshownbymodeltestingthattheeffectivenesswaslimitedinreducingtheimpactloadsfromdeckgreenwaterbyincreasingtheflareoftheshipSbow.Onthecontrary,thephenomenaofgreenwatercouldgetintensifiedinahighseastate.Inthemodeltest,theimp
7、actpres—surefromrollingwavesofgreenwaterwasobservedinternationallyforthefirsttime.Themeasureddatashowsthattheslammingpressurebythedirectimpactofrollingwavesondeckisfarseriouslydestructive,incomparisonwiththeimpactloadsinducedbythedeckswellofgreenwate
8、r.Theimpactofrollingwavesonthedeckrequiresfurtherstudy.Keywords:greenwater;shipmodeltests;relativemotion;impactpressure;regularwaves甲板上浪是運(yùn)動(dòng)著的船體與波浪相互作用而產(chǎn)板上浪可以分解為船體和波浪相對(duì)運(yùn)動(dòng)導(dǎo)致波浪越生的一種高度非線性現(xiàn)象,由于甲板上浪載荷所引過干舷發(fā)生上浪、上浪水體沿著甲板流動(dòng),上浪水體發(fā)的結(jié)構(gòu)破損的事故時(shí)有發(fā)生,因而對(duì)這種強(qiáng)非線沖擊甲板和船上結(jié)構(gòu)