Design And Hydrodynamic Performance Study Of Coastal M-Type Wind Power Maintenance Vessel

In recent years,China’s environmental protection is facing a severe test.In response to the call of the national environmental protection strategy,vigorous development of new energy will be the general trend.China has a long coastline and abundant offshore wind energy resources.In recent years,with the strong support of the government,offshore wind energy development is a hot area.As an important component in the field of offshore wind power,the resistance performance and seakeeping performance of offshore wind power maintenance ship are directly related to economic benefits.Therefore,this paper studies the ship form of offshore wind power maintenance ship,and explores a ship type with excellent resistance performance and seakeeping performance.As a new type of M-type ship appearing in recent years,it has great potential in resistance performance and seakeeping performance.In this paper,M-type ship is first used in offshore wind power maintenance ship.Based on trimaran wind power maintenance ship,combined with the main ship type characteristics of M-type ship,the main ship type elements of M-type offshore wind power maintenance ship are determined,and the design of ship hull line is carried out.Then,the hull line is improved and modeled by using professional ship design software NAPA,and then according to the specific requirements of wind power maintenance ship.The general layout of M-type offshore wind power maintenance ship is designed.Based on the test data of M-type ship model and trimaran ship model,the CFD software STAR CCM + is used to study the numerical simulation method of hydrostatic resistance of ship hull and the numerical simulation method of resistance enhancement and seakeeping performance of ship hull in regular waves.The accuracy of CFD software is verified by comparing the calculated results with the experimental ones.In view of the parameters of the bottom channel of M-type wind power ship,a series of ship forms are proposed.The static water resistance,the resistance of ship hull in waves and its seakeeping are calculated by CFD software.The influence of channel parameters on hull resistance and seakeeping performance of M-type wind power maintenance ship is analyzed.Then it is compared with the trimaran wind power maintenance ship.Finally,the M-type wind power maintenance ship with better resistance and seakeeping performance is obtained.This paper is the first attempt to apply M-type ship to the field of offshore wind power maintenance ship.It makes a preliminary exploration on the design of ship form and the influence of the change of channel parameters of M-type ship on resistance performance and seakeeping performance.It can provide some reference for the design and performance prediction of this type of offshore wind power maintenance ship form in the future.