In order to improve the cabin modeling efficiency of AVEVA Marine(AM)software,the AM secondary development for parameterized cabin modeling is conducted with C#.The parameterized cabin and furniture are created and located,so as to realize the rapid cabin modeling,simplify the modeling work and operation flow,improve the modeling efficiency,and facilitate the use of relevant designers.The developed function of parameterized rapid cabin modeling is tested,and the high efficiency of AM secondary development is verified.
Based on the capture of Volatile Organic Compounds(VOCs)gases generated during the ship outfield painting operation,the design scheme of local gas collecting hood for ship outfield painting is formed with theoretical research,analogue simulation,and field tests,and the reasonable verification method is confirmed to check the feasibility and collection rate of the scheme.The results show that the local gas collecting hood of ship outfield painting can effectively capture VOCs gases,control the pollutant diffusion from the source,and reduce the pollution.
Taken a 150 000 tonner shuttle tanker as an example,a design scheme that can effectively reduce the hull light weight is proposed,and the impact of hull weight reduction on EEDI is assessed.The results show that:compared with the mother ship,the light weight of the designed ship is reduced by 1 464 t;the designed ship uses the weight reduction to increase the cargo deadweight,and its EEDI can be reduced by about 1.0%.The weight reduction scheme and reliability assessment method of the shuttle tanker can provide reference for the design and development of similar ships.
In view of the flat butt welds in ship construction,the steel base materials of different thicknesses are used to make a comparison of equivalence requirements of testing technology standards and conduct a testing equivalence test between Digital Radiography Testing(DRT)and conventional film Radiography Testing(RT),and DRT and conventional film RT of weld defects of test plate are evaluated.The results show that DRT and conventional film RT are of equivalence.
The status of legislation,treatment technology,biological detection,and shore-based reception of ship ballast water in China is studied.The results show that:the legislation of ballast water is relatively late,and the foreign regulations and international conventions are mainly used for reference;the treatment technology of ballast water is at the leading level,and the technical solutions cover the mainstream directions such as electrolysis and ultraviolet light;there are many biological detection sampling institutions of ballast water,and most of them are of testing qualifications of D-2 standard;there is the shore-based reception capability of ballast water,but currently there is not the example of port installation and reception.The treatment technology and testing technology of ballast water in China are relatively advanced,but the legislation protection and shore-based reception still need to be further improved.
