The Change of Maritime Industry

The year of 2012 has left people many unpleasant memories,i.e.the news related to the deficit of shipping enterprises lingered in our ears,the shortage of ship orders and bankruptcy of shipping enterprises appeared one after another,and a fierce battle was once again waged among the shipbuilding industries of China,Japan and South Korea in the downturn.In 2012,the legendary year of doomsday,who on earth can survive in the face of hardships? According to a saying,poverty gives rise to the desire for change,and the shipbuilding industry will seek change in the downturn of shipping market.     

矩形水箱中模拟浅水晃荡的不同湍流模型性能研究（英文）

Liquid sloshing is a common phenomenon in the transportation of liquid-cargo tanks. Liquid waves lead to fluctuating forces on the tank walls. If these fluctuations are not predicted or controlled, for example, by using baffles, they can lead to large forces and momentums. The volume of fluid(VOF) two-phase numerical model in Open FOAM open-source software has been widely used to model the liquid sloshing. However, a big challenge for modeling the sloshing phenomenon is selecting a suitable turbulence model. Therefore, in the present study, different turbulence models were studied to determine their sloshing phenomenon prediction accuracies. The predictions of these models were validated using experimental data. The turbulence models were ranked by their mean error in predicting the free surface behaviors. The renormalization group(RNG) k–ε and the standard k–ωmodels were found to be the best and worst turbulence models for modeling the sloshing phenomena, respectively; moreover, the SST k–ω model and v2-f k-ε results were very close to the RNG k–ε model result.     

The overall level of Chinese shipbuilding is lifting up

Recently, Mr. Jin Zhuanglong, Vice Minister of Science, Technology and Industry for National Defense (COSTIND) announced to the media that the Basic Requirements and Measures of Evaluation for the Production Conditions of Shipbuilding Enterprises (hereinafter referred to as the Ship- building Enterprise Evaluation Standard) has been formally promulgated and will take effect on October 1 this year. This is the first industrial stan- dards regarding the admission of shipbuilding enterprises in China. The standard shakes off the awkwardness of the Chinese shipbuilding enter- prises having no evaluation standards and drives the shipbuilding enter- prises to walk into a standardization era.     

基因表达编程技术的180度弯曲浸没导向板附近腐蚀范围确定研究（英文）

Submerged vanes are installed on rivers and channel beds to protect the outer bank bends from scouring. Also, local scouring occurs around the submerged vanes over time, and identifying the effective factors on the scouring phenomena around these submerged vanes is one of the important issues in river engineering. The most important aim of this study is investigation of scour pattern around submerged vanes located in 180° bend experimentally and numerically. Firstly, the effects of various parameters such as the Froude number(Fr), angle of submerged vanes to the flow(α), angle of submerged vane location in the bend(θ),distance between submerged vanes(d), height(H), and length(L) of the vanes on the dimensionless volume of the scour hole were experimentally studied. The submerged vanes were installed on a 180° bend whose central radius and channel width were 2.8 and 0.6 m, respectively. By reducing the Froude number, the scour hole volume decreased. For all Froude numbers, the biggest scour hole formed at θ = 15°. In all models, by increasing the Froude number, the scour hole volume significantly increases. In addition, by increasing the submerged vanes' length and height, the scour hole dimensions also grow. Secondly,using gene expression programming(GEP), a relationship for determining the scour hole volume around the submerged vanes was provided. For this model, the determination coefficients(R~2) for the training and test modes were computed as 0.91 and 0.9,respectively. In addition, this study performed partial derivative sensitivity analysis(PDSA). According to the results, the PDSA was calculated as positive for all input variables.     

Declarations from three government officials about Chinese maritime development

In 2007, 19% of global sea-borne staple goods were transported to China, 20% of containers came from China and 39% of newbuilding orders flew into China. China's global influence is getting increasingly bigger. Then how to develop Chinese shipping and shipbuilding industries? On November 27, Mr. Zhang Guobao, Vice Minister of National Development and Reform, Mr. Jin Zhuanglong, Vice Minister of COSTIND, and Mr. Xu Zuyuan, Vice Minister of Communications all gathered in Shanghai and spoke on the opening session of the high level maritime forum, declaring to international maritime the outlines of action as a large maritime country.     

中国船用产品上船难于上青天

In recent years,China‘s shipbuilding industry has witnessed rapid growth.It‘s reported that china has set the goal to grab 16% of the world market share with the annual output of shipbuilding reaching 10 million deadweight tonnage by 2005, and 24 million deadweight tonnage representing 35% of the world market share by 2015. In addition, over 80% of the marine equipment to be installed on board will be made in China by 2010, compared with the current ratio of 30%. Is it possible for China to realize this goal in less than six years? No wonder there lies a doubt.     

船舶融资:瓶颈与构想

ship financing,though a sensitive subject,is an important factor of many issues,like those involving building Chinese ships abroad or Chinese ship flying foreign flag.Embarrassed by the current financing system in China.Our shipbuilding can't be grow faster.The report analyzes the situation and the problems of the current financing system faced by our shipbuilding industry,and some proposals have also been outlined regarding the solution of the problems.     

游艇业梦始何方

Chinese Yacht development is just at her primary stage.In 2002,the export volume of Chinese yacht industry only reached over 17 million US dollars,while each year the total international yacht sales amount to 25 billion US dollars.Imagine what a prospect will it be if the Chinese yacht industry can take 5-7% the international market like that of the Chinese shipbuilding industry ?Yacht industry contains hi-tech as stated by the industry sources.For the burgeoning Chinese yacht industry,it is still a dream to come out into the international market.However,the efect of grouping together is probably something where we can start with our dream.     

SHIPBUILDING IN CHINA

China＇s annual ship sale volume will break 200b RMB by 2010;The first Chinese salvation ship delivered;China＇s largest ＂sea forklift＂ adopts new subcontract shipbuilding model;Chinese shipbuilding industrial standard can basically match up with the international standards;Foreign-invested banks set foot in Chinese ship financing;The world largest inland cruiser commenced construction in Chongqing.     

Price of Bulk Carrier Seems to Hit Bottom

Bulk carrier has the biggest sustained volume in the global fleet,with an annual turnover of new ships exceeding 100m DWT between 2006～2010.Especially in 2007 when the market was at its peak time,new ship orders reached 170m DWT.After the financial crisis,demand for new ships plunged,and orders for new ships in 2011 were less than 40m DWT.In the first three quarters of 2012,only 13.1m DWT were ordered.Although the turnover of bulk carrier is still in the first place,it is not a comparison to the past.     

Competition,Salvation from the Crisis

At the beginning of 2009,demand collapsed under the force of the fierce wave of global financial crisis,and the burst of BDI bubbles accelerated.A special"war"between shipbuilding industries in China,Japan and Korea has unfolded.The competition involved is not only in terms of orders,price and environment-friendliness,but also in terms of cost-efficiency,multilateraries and overseas expansion.Though China has overtaken Korea in new orders and orders in hand,considedng the different strategies adopted by the three countries,the true winner will be the one who will be able to"talk while laughing"after the storm.     

Will More Shipping Enterprises Encounter Loss in Future?

According to the statistics from the Chinese Association of the National Shipbuilding Industry (CANSI), from January to April of this year,main business income of China's medium and large shipbuilding enterprises was 190.1 billion RMB, up 27％compared with the same period of last year; The total profit was 14.2 billion RMB, up 23.8％ compared with the same period of last year. The profit ratio of sales of medium and large enterprises reached 7.5％, 1.3％ higher than the national average level. On the surface, the above statistics indicate that the current economy of China's shipbuilding industry runs smoothly with a relatively good benefit performance. However, if we analyze these statistics with those in the previous years, we will find that the payoff situation of China's shipbuilding enterprises is still worrying.     

Window to China

Medium and long-term development program of Chi- nese shipbuilding industry has come outMedium and long term development program of Chinese shipbuild- ing industry has been discussed and adopted in principle by the State Council executive meeting on 16th …     

China draws the blueprint of strong shipbuilding country

On August 30 to 31st 2007, Mr. Jin Zhuanglong vice minister of COSTIND on the national shipbuilding work meeting clearly put forward that we should speed up our efforts to promote the strategic transformation of shipbuilding industry, and change our development objective from a large to a strong shipbuilding country. Before this, to fully carry out the "medium and long term development program for shipbuilding industry" and "the eleventh five-year program of shipbuilding development", the COSTIND successively issued the "eleventh five-year development program of ship’ s science and technology", the "eleventh five-year development program of marine equipment industry" and the "action plan of fully establishing modern shipbuilding mode (2006-2010)", which all mapped out the blueprint for making a strong shipbuilding country. In the next f ive to ten years, Chinese shipbuilding industry will sprint toward the shipbuilding power, keeping in mind the following objectives.     

A comparison of Chinese,Japanese, and Korean shipyard production technology

This paper compares Chinese, Korean, and Japanese shipyard production technology. Development in the world shipbuilding over recent years has influenced focus areas related to shipyard manufacturing technologies and product performance. Software systems, information technology, production technology, and local challenges of shipyards are compared with shipbuilding outputs among these three countries. Various technologies developments, shipyard production and the problems in Chinese, Japanese, and Korean shipyards are discussed respectively. Finally, future areas of research are pointed out.     

Can steel makers dance in the rhythm of the flourishing shipbuilding industry?

Global shipbuilding orders have expe- rienced a shift from Europe to Japan and then to South Korea, and the industry now undoubt- edly agrees that the next country to come is China. The fact is true for the developing trend of Chinese shipbuilding has mad…     

Optimization of bow shape for a non ballast water ship

In this research,a commercial CFD code ＂Fluent＂ was applied to optimization of bulbous bow shape for a non ballast water ships（NBS）.The ship was developed at the Laboratory of the authors in Osaka Prefecture University,Japan.At first,accuracy of the CFD code was validated by comparing the CFD results with experimental results at towing tank of Osaka Prefecture University.In the optimizing process,the resistances acting on ships in calm water and in regular head waves were defined as the object function.Following features of bulbous bow shapes were considered as design parameters： volume of bulbous bow,height of its volume center,angle of bow bottom,and length of bulbous bow.When referring to the computed results given by the CFD like resistance,pressure and wave pattern made by ships in calm water and in waves,an optimal bow shape for ships was discovered by comparing the results in the series of bow shapes.In the computation on waves,the ship is in fully captured condition because shorter waves,λ/Lpp 0.6,are assumed.     

Joint forces to push strategic transformation of shipbuilding industry

The 2007 shipbuilding industry work meeting was sponsored by COSTIND for the first time. With the clarion call for strategic transformation, the meeting is aimed to drive China toward a strong shipbuilding country with full efforts. This clarion call not only inspires people from the shipbuilding industry, but also makes related sectors ready for full support. Recently, our reporter interviewed relevant persons from China Classification Society (CCS), the Import and Export Bank of China, Harbin Engineering University, and deeply felt the surging passion from relevant industries in pushing forward the strategic transformation of Chinese shipbuilding industry.     

状态空间的船体平直分段装配的偏差诊断和分析(英文)

Dimensional control is one of the most important challenges in the shipbuilding industry.In order to predict assembly dimensional variation in hull flat block construction,a variation stream model based on state space was presented in this paper which can be further applied to accuracy control in shipbuilding.Part accumulative error,locating error,and welding deformation were taken into consideration in this model,and variation propagation mechanisms and the accumulative rule in the assembly process were analyzed.Then,a model was developed to describe the variation propagation throughout the assembly process.Finally,an example of flat block construction from an actual shipyard was given.The result shows that this method is effective and useful.