Design Evaluation System For The Conceptual Design Stage Of The Appearance Of Large Cruise Ships

The vigorous development of cruise tourism has driven the continuous improvement of the design and construction technology of large cruise ships,and the theoretical system of cruise design is gradually developing towards systematization and scientization.With the continuous improvement of China’s comprehensive national strength and the launch of independent construction projects of large luxury cruise ships,China’s cruise design and construction technology has entered a new stage of development.In order to break the monopoly of large cruise design and construction technology in western countries,it is urgent to build a complete theoretical system of cruise appearance design in China.The design evaluation system plays an important role in guiding and standardizing the cruise appearance design.It is the core link in the theoretical system of cruise appearance design and an important content of cruise design and construction technology.The construction of cruise design evaluation system has important practical significance for the development of cruise design and construction level in China.Starting from the whole ship development process of large cruise ships,this paper analyzes the relationship between the cruise ship appearance design and the whole ship development process,and finds that the work content that has an important impact on the appearance modeling focuses on the appearance modeling conceptual design stage,and determines the research content as the appearance modeling design evaluation in the conceptual design stage.Combined with the specific work content of cruise design and the whole ship scheme submission link,the conceptual design stage is divided into preliminary design stage and detailed design stage,and the design contents of the two stages are evaluated by different evaluation methods.The preliminary design stage is the exploration stage of cruise appearance style situation,and the author adopts the overall qualitative evaluation method.The intention words describing the appearance style and trend of the cruise ship are widely collected,and the target ship type library is constructed according to the mission statement.According to the modeling characteristics of the target ship type,the preliminary intention phrase library is constructed after the discussion between the project team members and cruise experts.In order to make the evaluation indicators more representative,the author uses factor analysis method to extract the hidden common factors affecting the expression of cruise style situation according to the scoring results of intention words of different cruise ships in the target ship type library,summarize and summarize the extracted common factors,and obtain the main evaluation indicators and importance weights to measure the cruise style situation.According to the specific requirements of the assignment,add supplementary evaluation indicators to judge whether the evaluation scheme meets the basic requirements of the ship East as a supplement to the evaluation system at this stage.Finally,the ranking method of approximate ideal solution is used to rank and optimize the participating schemes,and provide guidance and suggestions for the optimal scheme according to the evaluation results.The author needs to select the best part of the design for the subsequent quantitative evaluation.The author uses the analytic hierarchy process to sort out the factors affecting the evaluation of cruise appearance modeling,and finally obtains 11 evaluation indexes.The cruise appearance design experts are invited to compare the importance of the evaluation indexes,and the corresponding weights of the 11 evaluation indexes are obtained.In order to reduce the influence of subjective factors of weighting experts on the evaluation results and the lack of consensus of experts in the evaluation team,the weights are optimized by MATLAB modeling and particle swarm optimization algorithm,so as to improve the consistency of evaluation results and ensure the objectivity of evaluation results and the consistency of expert opinions.Finally,through the actual project development process of the author’s project team,the efficiency and feasibility of the evaluation system are verified.In the preliminary design evaluation stage,the appearance style trend of 135000 ton "Vista" cruise ship was studied,and finally three main influencing factors and weights were obtained,reflecting the strategic role of the evaluation system in efficiently solving fuzzy evaluation.In the detailed design evaluation stage,according to the evaluation results,through MATLAB modeling and particle swarm optimization algorithm,the weight obtained by analytic hierarchy process is optimized,which effectively improves the consistency of evaluation results and reflects the objective advantages of the evaluation system in the face of complex decision-making problems.Through the research of cruise design and using a variety of evaluation and statistical algorithms,this paper constructs an evaluation system for the conceptual design stage of large cruise.In the actual development project of cruise appearance,it can effectively save the development cost,improve the strategic,scientific and objective evaluation decision-making,and then improve the comprehensive competitiveness of cruise enterprises.The author hopes that this research can further improve the theoretical system of cruise design,and also hopes that subsequent researchers can improve and expand this research on this basis.