China Adopts Measures to Maintain the Momentum of Economic Growth

While the global economic growth rate has slowed down since the beginning of this year, China's economy has reported continuous rapid growth, with the GDP rising by 7.9 percent in the first six months. China's overall economic situation has remained sound. This year, the initial year of the new century, marks the beginning of China's 10th Five-Year Plan. The Chinese Government has adopted a series of measures to stimulate economic growth. It has adhered to the principle of enlarging domestic demand, continued to implement the proactive fiscal policy and the steady monetary policy, and maintained the consistency of its policies and the necessary intensity of enforcement. It has followed the principle of focusing on development through economic restructuring, breached the traditional thinking of seeking balance in grain     

新建半潜运输船在张力腿平台运输方面的应用研究(英文)

Transportation of tension leg platform(TLP) structures for a long distance has always been associated with the use of a heavy semi-transport vessel.The requirements of this type of vessel are always special,and their availability is limited.To prepare for the future development of South China Sea deepwater projects,the China Offshore Oil Engineering Corporation has recently built a heavy lift transport vessel-Hai Yang Shi You 278.This semi-submersible vessel has a displacement capacity of 50k DWT,and a breath of 42 meters.Understanding the vessel’s applicability and preparing it for use in future deepwater projects are becoming imminent needs.This paper reviews the current critical issues associated with TLP transportation and performs detailed analysis of the designed TLP during load-out and transportation.The newly built COOEC transportation vessel HYSY 278 was applied to dry transport of the TLP structure from the COOEC fabrication yard in Qingdao to an oil field in South China Sea.The entire process included the load-out of the TLP structure from the landsite of the fabrication yard,the offloading and float-on of the platform from the vessel,the dry transport of the TLP over a long distance,and the final offloading of the platform.Both hydrodynamic and structure analysis were performed to evaluate the behavior of the transport vessel and TLP structure.Special attention was paid to critical areas associated with the use of this new vessel,along with any potential limitations.The results demonstrate that HYSY 278 can effectively be used for transporting the structure with proper arrangement and well-prepared operation.The procedure and details were presented on the basis of the study results.Special attention was also given to discussion on future use based on the results from the analysis.     

A dual measurement method of strain and temperature

With the rapid development of China's foreign trade, the coastal and inland waterway transport has been increased rapidly. The potential market for marine engines is more and more obvious. The measurement of the engine temperature and strain becomes very important. The fluorescence fiber sensors are broadly used to measure temperature, concentration, and pH value, etc. The fluorescence sensing systems are based on different principles, namely fluorescence intensity, fluorescence intensity ratio, and fluorescence lifetime. The fluorescence lifetime is an effective parameter for sensing purpose, because it is independent of the intensity of the pumping source and does not need expensive narrow-band filters. An experiment system has been established, in which some samples were produced to measure the fluorescence lifetime and temperature characteristics and the relationship of the strain and temperature versus the fluorescence lifetime was achieved at the same time. The experiment result was fitted and analyzed. The test results show that the fluorescence lifetime decreases with the increasing of temperature. The change of fluorescence lifetime with the strain is inconspicuous comparing to that with the temperature.     

舵几何参数对桨舵系统水动力性能的分析(英文)

In order to study the effects of geometric parameters of the rudder on the hydrodynamic performance of the propeller-rudder system,the surface panel method is used to build the numerical model of the steady interaction between the propeller and rudder to analyze the relevant factors.The interaction between the propeller and rudder is considered through the induced velocities,which are circumferentially averaged,so the unsteady problem is translated to steady state.An iterative calculation method is used until the hydrodynamic performance converges.Firstly,the hydrodynamic performance of the chosen propeller-rudder system is calculated,and the comparison between the calculated results and the experimental data indicates that the calculation program is reliable.Then,the variable parameters of rudder are investigated,and the calculation results show that the propeller-rudder spacing has a negative relationship with the efficiency of the propeller-rudder system,and the rudder span has an optimal match range with the propeller diameter.Futhermore,the rudder chord and thickness both have a positive correlation with the hydrodynamic performance of the propeller-rudder system.     

带吊舱水下机器人运动建模与仿真(英文)

To provide a simulation system platform for designing and debugging a small autonomous underwater vehicle’s (AUV) motion controller, a six-degree of freedom (6-DOF) dynamic model for AUV controlled by thruster and fins with appendages is examined. Based on the dynamic model, a simulation system for the AUV’s motion is established. The different kinds of typical motions are simulated to analyze the motion performance and the maneuverability of the AUV. In order to evaluate the influences of appendages on the motion performance of the AUV, simulations of the AUV with and without appendages are performed and compared. The results demonstrate the AUV has good maneuverability with and without appendages.     

槽道型高速滑行艇船型的自动生成(英文)

The creation of geometric model of a ship to determine the characteristics of hydrostatic and hydrodynamic, and also for structural design and equipments arrangement are so important in the ship design process. Planning tunnel high speed craft is one of the crafts in which, achievement to their top speed is more important. These crafts with the use of tunnel have the aero-hydrodynamics properties to diminish the resistance, good sea-keeping behavior, reduce slamming and avoid porpoising. Because of the existence of the tunnel, the hull form generation of these crafts is more complex and difficult. In this paper, it has attempted to provide a method based on geometry creation guidelines and with an entry of the least control and hull form adjustment parameters, to generate automatically the hull form of planning tunnel craft. At first, the equations of mathematical model are described and subsequent, three different models generated based on present method are compared and analyzed. Obviously, the generated model has more application in the early stages of design.     

The China State Shipbuilding Corporation(CSSC)offers warm congratulations on the opening of China Shenzhen Technology Fairl Wang Rongsheng Vice President of CSSC

Under the leadership of the State Council ofChina,CSSC was inaugurated in May,1982 andfunctions as an all-China shipbuilding corporationwith a framework intergrating production withtrade,military sector with civil sector,shipbuildingwith shiprepairing,and production with researchand development.It has under its jurisdiction 26shipyards and dockyards highlighting the reputedJiangnan and Hudong shipyards.It also has over60 marine equipment manufacturing plants andmore than 30 research and design institutes.Itstotal number of employees tops 300,000.     

Application of H~∞ control in rudder/flap vector robust control of a ship's course

Given the uncertainty of parameters and the random nature of disturbances that effect a ships course, a robust course controller should be designed on the basis of rudder/flap vector control. This paper analyzes system uncertainty, and the choice of weighting functions is also discussed. When sea waves operate on a ship, the energy-concentrating frequency varies with the angle of encounter. For different angles of encounter, different weighting functions are designed. For the pole of a nominal model existing in an imaginary axis, the bilinear-transform method is used. The "2-Riccati" equation is adopted to solve the H∞ controller. A system simulation is given, and the results show that, compared with a PID controller, this system has higher course precision and more robust performance. This research has significant engineering value.     

AN ANALYSIS OF THE IMPACT ON CHINA''''S ECONOMIC DEVELOPMENT BY ITS ENTRY INTO THE WTO!ITS MTRY INTO

Fifteen years has elapsed since China first put forward its application for the membership of GATT in 1986.For, these fifteen years, great changes have taken place either with regard to World economy and political environment or to the economic development level, the economic system and the degree of openness of China. These have fundamentally changed the opinios of major WTO members concerning China and their basic negotiation standpoint. For fifteen years, China has spared no efforts in trying to enter the WTO and relative organizations have     

Application of H∞ control in rudder/flap vector robust control of a ship＇s course

Given the uncertainty of parameters and the random nature of disturbances that effect a ships course, a robust course controller should be designed on the basis of rudder/flap vector control. This paper analyzes system uncertainty, and the choice of weighting functions is also discussed. When sea waves operate on a ship, the energy-concentrating frequency varies with the angle of encounter. For different angles of encounter, different weighting functions are designed. For the pole of a nominal model existing in an imaginary axis, the bilinear-transform method is used. The ＂2-Riccati＂ equation is adopted to solve the H∞ controller. A system simulation is given, and the results show that, compared with a PID controller, this system has higher course precision and more robust performance. This research has significant engineering value.     

搅拌工具轴肩和搅拌头轮廓对铝合金搅拌摩擦焊的影响一对比研究(英文)

In marine application,marine grade steel is generally used for haul and superstructures.However,aluminum has also become a good choice due to its lightweight qualities,while rusting of aluminum is minimal compared to steel.In this paper a study on friction stir welding of aluminum alloys was presented.The present investigation deals with the effects of different friction stir welding tool geometries on mechanical strength and the microstructure properties of aluminum alloy welds.Three distinct tool geometries with different types of shoulder and tool probe profiles were used in the investigation according to the design matrix.The effects of each tool shoulder and probe geometry on the weld was evaluated.It was also observed that the friction stir weld tool geometry has a significant effect on the weldment reinforcement,microhardness,and weld strength.     

做中远大家庭的一员

Tremendous changes took place during the past 40 years in international shipping, Cosco has since grown into an international identity with a globalimpact. The achievements of Cosco are due to hard and conscientious work of all involved and we appreciate the support of our old and new friends. As the first joint-venture agency of     

油气部门协会改进ISO国际标准的使用

The International Association of Oil and Gas Producers （OGP） has published a new issue of its Standards Bulletin, promoting the collaboration of OGP with ISO and encouraging the oil and gas sector to make use of the suite of ISO International Standards developed for a wide selection of vital off and gas industry materials, equipment and offshore structures. By the end of 2008, the suite comprised 138 standards and 19 are planned for 2009.     

Boosting Chin Maritime Strategy

Authorized by the competent authority, CCS is the sole professional organization to carry out classification and statutory survey and notarial certification of ships and offshore oil and gas projects. CCS' rule and standard system for offshore installations has experienced 30 years, from none to possessing rules, from statutory and classification survey to competing for notarial certification, and from offshore to deep sea. In recent years, with the quickening of Chinese offshore oil and gas resources exploration, the rule and standard system of CCS has been strengthened and improved continuously.     

The Strategic Thinking in Cold Winter

The tragic readings in 2012 has forced shipping enterprises to face more complicated and severe strategic choices under the shipping market with different structures.No progress simply means retreat.In the great waves,sand will be swept away and only those with wisdom can prevail.This situation is not only a test of the survival wisdom of the enterprises,but also a test of how the whole industry will succeed in the future.     

Introduction to the Port City of Seattle

Seattle Located on a neck of land between the Elliott Bay (the Puget Sound) and Lake Washington, Seattle is a major city of Washington State and the largest metropolis of the Pacific Northwest in the USA. It is a port of entry and gateway to Asia and Alaska. The city has an area of 84 square miles and a population of about 516,000 (1992), with a density of 10,879 per Square mile.     

STATE OF WASHINGTON OFFICE OF THE GOVERNOR Message from the Governor

I am pleased to send my best wishes to the China Ocean Shipping Company (COSCO) as it celebrates 20 years of friendship and successful trade relations between the United States and the People's Republic of China on this 20th anniversary of the maiden voyage of the vessel M.V. LIULINHAI. Much has happened in the 20 years since U.S. trade with China was reinstated in 1979, and China has grown to become an important partner in Washington's Asia-Pacific trade relationship. Washington's status as the most trade-dependent state in the nation and our geographic location on the edge of the Pacific Rim dictate that     

具有化学废热回收功能的船舶推进系统效率分析（英文）

One of the basic ways to reduce polluting emissions of ship power plants is application of innovative devices for on-board energy generation by means of secondary energy resources. The combined gas turbine and diesel engine plant with thermochemical recuperation of the heat of secondary energy resources has been considered. It is suggested to conduct the study with the help of mathematical modeling methods. The model takes into account basic physical correlations, material and thermal balances, phase equilibrium, and heat and mass transfer processes. The paper provides the results of mathematical modeling of the processes in a gas turbine and diesel engine power plant with thermochemical recuperation of the gas turbine exhaust gas heat by converting a hydrocarbon fuel. In such a plant, it is possible to reduce the specific fuel consumption of the diesel engine by 20%. The waste heat potential in a gas turbine can provide efficient hydrocarbon fuel conversion at the ratio of powers of the diesel and gas turbine engines being up to 6. When the diesel engine and gas turbine operate simultaneously with the use of the LNG vapor conversion products, the efficiency coefficient of the plant increases by 4%–5%.     

CCSI Faced with Transformation Year Calmly

In the year of 2012,CCSI,as one of major powers of CCS onshore business,achieved a low-profiled and satisfactory transformation.While most of the companies have been racking their brains to find a way to survive in the market crisis,CCSI has showed unconventional and calm spirits with regard to the future development.Opportunity exists everywhere and those who can take hold of it will win.     

Application of H∞ filtering in the initial alignment of strapdown inertial navigation system

In this paper , the principle of H∞ filtering is discussed and H∞ filter is constructed, which is used in the initial alignment of the strapdown inertial navigation systems(SINS). The error model of SINS is derived. By utilizing constructed H∞ filter, the filtering calculation to that system has been conducted. The simulation results of the misalignment angle are given under the condition of unknown noises. The results show that the process of alignment with H∞ filter is much faster and with excellent robustness.