General Design And Research Of An Ocean Research Ship

The ocean research ship has developed with a history of more than one hundred years.With the exhaustion of the land resources, explore and utilize Marine resources demand isgrowing. The demand of design and building ocean research ship is growing day by day.Under the background of2008economic crisis sweeping the globe, market demand for thetraditional cargo ships is in downturn; building ships of some types not being of themainstream and being hit less by the economic crisis become a consensus. Ocean researchship is one type of them. Being the tool of research and exploration of Marine resources,Ocean research ship’s market demand is affected scarcely by the economic crisis.The ocean research ship has developed in multiple stages. The research content isexpanding from the ocean biological investigation, the ocean physical and chemicalsurvey, ocean geological and ocean geomorphic survey, ocean mineral resourcesinvestigation, ocean meteorological survey, to high altitude measurement; The ship typedevelopment of ocean research ship is from refitting other ship types, to specially-builtship,and then to carring movable rearsh devices, and then to ROV mother ship. ResearchDevices vary from installing mechanical equipment to the widespread use of electronicdevice, automated equipment, and computers.Ocean research Ship is of ship type of layout with the design features of thepassenger ship and workboat.The general arrangement of ocean research ship should bereasonable coordinator of the accommodation and equipment layout, expressing therelations between the demands. The new ship design usually must consider characteristicsproblems such as stability reserves, power grid separation, refitting space and so on.Due to the change of standard and research equipment development, thedetermination of principal dimensions can’t simply be got by regression analysis accordingto the historical data of ships with the type.principal dimensions’ determination shouldmainly rely on mother ship improvement and referring and comparing more than onemother ship. Ocean research ship’s speed has the development trend of increasing to the range from18to23knots. Most of ocean research ship now will be being of ship typeswith faster speed. When designing the form lines, form coefficients’ selection had bettermeet the characteristics of Taylor series, estimating the resistance performance by Taylormethod is accurate engough.Ocean research ship has work speed low to2knots sometimes,and at this time active rudder or dynamic positioning system is generally equipped with it.Intact stability of ocean research ship should not only meet the rules of the IMO, butalso meet the need of withstanding high speed wind. Because of the determinate damagecalculation method is easy to comparison and amendments the compartment schedule,Ocean reasearch ship’s damage stability had better be calculated by determinate damagecalculation method in order to direct the compartment, but then probability damagecalculation method should be used for review the satisfying. The seakeeping of oceanresearch ship should be considered and optimizated at the scheme stage. Generallyanti-rolling equipments such as fin stabilizers should be equiped onboard ocean researchship.Based on the shipowners’ demand for the5000-ton ocean research ship, this articleput forward the general design scheme, give the solution of key technical issues such asthe stability, speed, general arrangement，probabilistic damage stability and seakeeping,and summarize the general design characteristics of ocean research ship. The designscheme meets the latest international codes and regulations. The design methods and waysof realizing the requirements of the project design specification can be the reference ofdesign the ocean research ship and other special purpose ship.