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中国海洋工程(英文版)
中国海洋工程(英文版)

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中国海洋工程(英文版)/Journal China Ocean EngineeringCSCDCSTPCD北大核心EISCI
查看更多>> China Ocean Engineering(简称COE)是中国科学技术协会主管、中国海洋学会主办、南京水利科学研究院编辑的英文版综合性、高科技学术季刊(刊号ISSN 0890 - 5487, CN32 – 1441 / P),于1987年创刊,每期180 ± 6页。国际订价:360美元 / 卷,国内订价:800元 / 卷。 COE办刊宗旨:向国外介绍我国与海洋工程有关的研究、设计、试验、生产、使用、管理等方面的成果以及学术动态,扩大对外宣传和交流,展示我国的研究水平。主要刊载:离岸工程、海洋工程、海洋能源利用工程、海洋环境保护工程、水下工程、潜水技术、救捞技术等方面的稿件。稿件形式:学术论文、研究简报、综合评论、调查报告、成果介绍等。COE编委会成员26人,编委会名誉主任严 恺教授 (两院院士),编委会主任邱大洪教授 (中科院院士),还有11位两院院士、6位海外学者和7位国内海洋工程界著名教授专家担任编委,本刊所刊载的论文均是在国内外首次发表的科技学术论文,不是《海洋工程》(中文版)的翻译版。 20年来,COE登载有国内大专院校、科研机构以及工程单位的两院院士和专家教授的论文;还登载一些欧美、澳洲、日本、韩国、印度、土耳其等国家及我国香港、台湾著名学者的论文;有些是中国学者与欧美、澳洲、日本、韩国、新加坡等国学者合作完成研究成果。近五年来,COE刊登论文中有近80%得到各类基金资助、有近20%是国际或国际合作完成,COE的基金论文比和国际论文比,都位居国内5300余种学术期刊的前列。 COE获中国科协、国家基金委1999年度国家自然科学基础性、高科技学术期刊专项基金资助;获中国科协2002、2003、2004和2005年度高科技学术期刊专项基金资助;获得中国科协2002年度重点期刊编辑部专项设备基金资助;获2007~2008年度国家自然科学基金重点学术期刊专项基金资助。COE目前已列入国家科技部中国科技论文统计核心源期刊,并被美国《科学引文索引》( SCI-E );美国《工程索引》( EI Compendex);俄罗斯《文摘杂志》(PЖ,AJ);日本《科学技术文献速报》(CBST);美国《剑桥科学文摘》(CSA);美国《应用力学评论》(AMR); 美国《石油文摘》(PA);等国内外18家权威检索数据库收录,在SCI-JCR公布的2001~ 2006年度国际海洋工程主题学科期刊影响因子指标中,COE均排名国际同类刊物的前十位(其中2003年度排名第七位,2005、2006年度排名第八位)。COE目前在国际海洋工程界已具有一定的知名度,并为我国海洋工程界专家、学者提供了一个在国际同行中展示自己的研究实力和水平,提高和扩大他们在国际学术领域的声望和影响的平台。COE也是我国、中国科协及江苏省的科技学术期刊中,在国际期刊界中为数不多具有影响力的专业学术期刊。COE作为国内外本行业学术界十分重要的传播和交流平台,为国家发掘培养出一大批海洋科学领域的杰出科技人才,如:两院院士;国务院学科评议组成员;长江学者;国家及省部级重点实验室主任;首席科学家;国家攻关项目负责人;上百位教授、博导和一大批博士、博士后;还有些专家学者是光华工程科技奖、国家和省部级科技进步奖、国家重大基金、国家杰出青年基金和国家基金获得者。近几年来,编辑部集体和个人取得的业绩得到上级部门的肯定和表彰,具体表现为:参评的两篇论文分别荣获“第二届(2004年)、第四届(2006年)中国科协期刊优秀学术论文奖”;COE进入首届和第二届“江苏期刊方阵”;副主编唐仁楠和编辑部主任吴永宁先后获“中国科技期刊优秀编辑奖—金牛奖”;吴永宁获“中国科技期刊青年编辑奖—骏马奖”和“江苏省科技期刊编辑学会—金马奖”;编辑部编辑杨 红获江苏省科学技术期刊编辑学会“优秀编辑”荣誉称号;吴永宁获“中国海洋学会优秀会员”荣誉称号,吴永宁被中国海洋学会期刊工作委员会和中国科学技术期刊编辑学会学术委员会聘任为委员,当选为江苏省期刊协会理事、江苏省科学技术期刊编辑学会常务理事。欢迎海内外海洋工程界的朋友们踊跃向本刊投稿。我们对高水平,特别是具有原创性的科学研究论文;对解决国际同行关注的难点与热点问题的论文;对国际合作项目、受国内外各类基金资助项目及重大科研经费资助项目完成的论文非常感兴趣,这类论文我们会安排优先发表。
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    Buckling Properties of Water-Drop-Shaped Pressure Hulls with Various Shape Indices Under Hydrostatic External Pressure

    DING Xiao-deZHANG JianWANG FangJIAO Hui-feng...
    1-17页
    查看更多>>摘要:The water-drop-shaped pressure hull has a good streamline,which has good application prospect in the underwater observatory.Therefore,this study conducted analytical,experimental and numerical investigation of the buckling properties of water-drop-shaped pressure hulls under hydrostatic pressure.A water-drop experiment was conducted to design water-drop-shaped pressure hulls with various shape indices.The critical loads for the water-drop-shaped pressure hulls were resolved by using Mushtari's formula.Several numerical simulations including linear buckling analysis and nonlinear buckling analysis including eigenmode imperfections were performed.The results indicated that the critical loads resolved by Mushtari's formula were in good agreement with the linear buckling loads from the numerical simulations.This formula can be extended to estimate the buckling capacity of water-drop-shaped pressure hulls.In addition,three groups of pressure hulls were fabricated by using stereolithography,a rapid prototyping tech-nique.Subsequently,three groups of the pressure hulls were subjected to ultrasonic measurements,optical scanning,hydrostatic testing and numerical analysis.The experimental results were consistent with the numerical results.The results indicate that the sharp end of the water-drop-shaped pressure hulls exhibited instability compared with the blunt end.This paper provides a new solution to the limitations of experimental studies on the water-drop-shaped pressure hulls as well as a new configuration and evaluation method for underwater observatories.

    Experimental Study on Vortex-Induced Vibration of Rough Risers with Coupling Interference Effect Under Side-by-Side Arrangement

    HU Ze-boLIU ZhenLI PengGUO Hai-yan...
    18-28页
    查看更多>>摘要:A vortex-induced vibration(VIV)experiment of rough risers with coupling interference effect under a side-by-side arrangement was carried out in a wave-current combined flume.The roughness of the riser was characterized by arranging different specifications of surface attachments on the surface of the riser.Rough risers with three different roughnesses were arranged side by side with smooth risers to explore the VIV response of the riser under the combined action of roughness and interference effect,and to reveal the coupling mechanism between roughness and interference effect.The experimental results show that,compared with that of a smooth riser,the VIV of a rough riser under the coupling interference effect has a wider"lock-in"region,and the displacement decreases more significantly at a high reduced velocity,which is more likely to excite higher-order modes and frequency responses.In addition,the dis-placement response and frequency response of the smooth riser are not significantly affected by wake interference from the rough riser,which is caused by the decrease of the wake region due to the delay of the boundary layer separation point of the rough riser.

    Dynamic Analysis of A Deepwater Drilling Riser with A New Hang-off System

    LI Yan-weiLIU Xiu-quanWANG Jin-longCHEN Guo-ming...
    29-41页
    查看更多>>摘要:The safety of risers in hang-off states is a vital challenge in offshore oil and gas engineering.A new hang-off system installed on top of risers is proposed for improving the security of risers.This approach leads to a challenging prob-lem:coupling the dynamics of risers with a new hang-off system combined with multiple structures and complex constraints.To accurately analyze the dynamic responses of the coupled system,a coupled dynamic model is established based on the Euler-Bernoulli beam-column theory and penalty function method.A comprehensive analysis method is proposed for coupled dynamic analysis by combining the finite element method and the Newmark β method.An analysis program is also developed in MATLAB for dynamic simulation.The simulation results show that the dynamic performances of the risers at the top part are significantly improved by the new hang-off system,especially the novel design,which includes the centralizer and articulation joint.The bending moment and lateral deformation of the risers at the top part decrease,while the hang-off joint experiences a great bending moment at the bottom of the lateral restraint area which requires particular attention in design and application.The platform navigation speed range under the safety limits of risers expands with the new hang-off system in use.

    Experimental Investigation on Vertical Hydraulic Transport of Ores in Deepsea Mining

    LIU LeiLIU Jian-chengLI XinXU Li-xin...
    42-53页
    查看更多>>摘要:Deepsea mining has been proposed since the 1960s to alleviate the lack of resources on land.Vertical hydraulic transport of collected ores from the seabed to the sea surface is considered the most promising method for industrial applications.In the present study,an indoor model test of the vertical hydraulic transport of particles was conducted.A noncontact optical method has been proposed to measure the local characteristics of the particles inside a vertical pipe,including the local concentration and particle velocity.The hydraulic gradient of ore transport was evaluated with various particle size distributions,particle densities,feeding concentrations and mixture flow velocities.During transport,the local concentration is larger than the feeding concentration,whereas the particle velocity is less than the mixture velocity.The qualitative effects of the local concentration and local fluid velocity on the particle velocity and slip velocity were investigated.The local fluid velocity contributes significantly to particle velocity and slip velocity,whereas the effect of the local concentration is marginal.A higher feeding concentration and mixture flow velocity result in an increased hydraulic gradient.The effect of the particle size gradation is slight,whereas the particle density plays a crucial role in the transport.

    Analytical Solution and Simplified Formula for Added Mass of Horizontal and Vertical Motions of Truncated Cylinders Under Earthquake Action

    WANG Pi-guangLYU Si-yuQU YangZHAO Mi...
    54-67页
    查看更多>>摘要:This paper investigates the hydrodynamic characteristics of floating truncated cylinders undergoing horizontal and vertical motions due to earthquake excitations in the finite water depth.The governing equation of the hydrodynamic pressure acting on the cylinder is derived based on the radiation theory with the inviscid and incompressible assump-tions.The governing equation is solved by using the method of separating variables and analytical solutions are obtained by assigning reasonable boundary conditions.The analytical result is validated by a numerical model using the exact artificial boundary simulation of the infinite water.The main variation and distribution characteristics of the hydrodynamic pressure acting on the side and bottom of the cylinder are analyzed for different combinations of wide-height and immersion ratios.The added mass coefficient of the cylinder is calculated by integrating the hydrodynamic pressure and simplified formulas are proposed for engineering applications.The calculation results show that the simplified formulas are in good agreement with the analytical solutions.

    Energy Harvesting in the Wake of An Inverted C-Shaped Bluff Body

    WANG Jun-leiLI Shen-fangMd.Mahbub ALAMZHU Hong-jun...
    68-80页
    查看更多>>摘要:This paper proposes a novel wake-induced vibration(WIV)-based energy harvesting system consisting of two bluff bodies.An inverted C-shaped bluff body is stationary installed at the upstream position to generate an interference wake street,and a cylinder bluff body equipped with a transducer is elastically suspended at the downstream position to harness WIV energy.The hydrodynamics and energy harvesting(EH)performance of the proposed system are investigated via experimental studies.The reduced velocity(U*)ranging from 2 to 14(the corresponding Reynolds number ranging from 15100 to 106200)is considered in the present study.It is found that the wake generated by the inverted C-shaped bluff body significantly affects the EH performance.Enlarging the opening angle(α)of the C-shaped bluff body increases the vibration amplitude of the downstream cylinder,thereby increasing the harvested power.When the spacing(L)between two bluff bodies is two times the cylinder diameter(D),the wake-induced vibration(WIV)mode is observed,while the combined WIV and wake galloping(WG)mode occurs when α is 150°,and L equals 3D or 4D.The average drag coefficient becomes negative when L is 2D,3D,or 4D.By carefully configuring a C-shaped bluff body,the wake generated by it can bring an augmenting effect on the vibration of the downstream EH cylinder.For example,the RMS power output of the proposed EH system reaches a maximum of 0.31 W at U*= 8 and L =4D,which is 300% greater than that of its traditional counterpart.Furthermore,after a number of case stud-ies,it is identified that the proposed EH system can achieve the best performance when α is 150°and L=2D.

    Application of CFD and FEA Coupling to Predict Structural Dynamic Responses of A Trimaran in Uni-and Bi-Directional Waves

    LIAO Xi-yuXIA Jin-songCHEN Zhan-yangTANG Qin...
    81-92页
    查看更多>>摘要:To predict the wave loads of a flexible trimaran in different wave fields,a one-way interaction numerical simulation method is proposed by integrating the fluid solver(Star-CCM+)and structural solver(Abaqus).Differing from the existing coupled CFD-FEA method for monohull ships in head waves,the presented method equates the mass and stiffness of the whole ship to the hull shell so that any transverse and longitudinal section stress of the hull in oblique waves can be obtained.Firstly,verification study and sensitivity analysis are carried out by comparing the trimaran motions using different mesh sizes and time step schemes.Discussion on the wave elevation of uni-and bi-directional waves is also carried out.Then a comprehensive analysis on the structural responses of the trimaran in different uni-directional regular wave and bi-directional cross sea conditions is carried out,respectively.Finally,the differences in structural response characteristics of trimaran in different wave fields are studied.The results show that the present method can reduce the computational burden of the two-way fluid-structure interaction simulations.

    Effect of Wave Nonlinearity on the Instantaneous Seabed Liquefaction

    WANG Zhao-junSUI Ti-tiZHANG ChiPAN Jun-ning...
    93-103页
    查看更多>>摘要:The nonlinear variation of wave is commonly seen in nearshore area,and the resulting seabed response and liquefaction are of high concern to coastal engineers.In this study,an analytical formula considering the nonlinear wave skewness and asymmetry is adopted to provide wave pressure on the seabed surface.The liquefaction depth attenuation coefficient and width growth coefficient are defined to quantitatively characterize the nonlinear effect of wave on seabed lique-faction.Based on the 2D full dynamic model of wave-induced seabed response,a detailed parametric study is carried out in order to evaluate the influence of the nonlinear variation of wave loadings on seabed liquefaction.Further,new empirical prediction formulas are proposed to fast predict the maximum liquefaction under nonlinear wave.Results indicate that(1)Due to the influence of wave nonlinearity,the vertical transmission of negative pore water pressure in the seabed is hindered,and therefore,the amplitude decreases significantly.(2)In general,with the increase of wave nonlinearity,the liquefaction depth of seabed decreases gradually.Especially under asymmetric and skewed wave loading,the attenuation of maximum seabed liquefaction depth is the most significant among all the nonlinear wave conditions.However,highly skewed wave can cause the liquefaction depth of seabed greater than that under linear wave.(3)The asymmetry of wave pressure leads to the increase of liquefaction width,whereas the influence of skewedness is not significant.(4)Compared with the nonlinear waveform,seabed liquefaction is more sensitive to the variation of nonlinear degree of wave loading.

    A Novel Method for Forecasting Freak Wave Occurrence in A Short Crested Coastal Sea

    WANG Ying-guang
    104-116页
    查看更多>>摘要:In order to forecast the distribution of crest amplitudes and the occurrence of freak waves in a short crested coastal sea,a novel transformed linear simulation method is initially proposed in this paper.A Hermite transformation model expressed as a monotonic cubic polynomial serves as the foundation for the novel simulation technique.The wave crest amplitude exceedance probabilities of two sea states—one with a directional wave spectrum based on the measured wave elevation data at the Yura coast and the other with a typical directional JONSWAP wave spectrum—have been predicted using the novel simulation method that has been proposed.The likelihood that a particular critical wave crest amplitude will be exceeded is directly correlated with the probability that freak waves will occur.It is shown that the novel simulation approach suggested can provide predictions that are more precise than those obtained from the Rayleigh crest amplitude distribution model,the Jahns and Wheeler crest amplitude distribution model,or the conventional linear simulation method.This study also demonstrated that the nonlinear simulation method is less effective than the novel simulation method in terms of efficiency.

    An Efficient Optimization Design Framework for Low-Resistance Shape of Bionic Amphibious Robot

    ZHANG Dai-yuZHANG Man-yuWANG Zhi-dongZHENG Wen-sheng...
    117-128页
    查看更多>>摘要:To realize the low-resistance shape optimization design of amphibious robots,an efficient optimization design frame-work is proposed to improve the geometric deformation flexibility and optimization efficiency.In the proposed framework,the free-form deformation parametric model of the flat slender body is established and an analytical cal-culation method for the height constraints is derived.CFD method is introduced to carry out the high-precision resistance calculation and a constrained Kriging-based optimization method is built to improve the optimization efficiency by circularly infilling the new sample points which satisfying the constraints.Finally,the shape of an amphibious robot example is optimized to get the low-resistance shape and the results demonstrate that the presented optimization design framework has the advantages of simplicity,flexibility and high efficiency.