动力定位系统综合评估与仿真
发布时间：2018-09-18 11:35
【摘要】：目前国内外研究船舶动力定位的方法很多，提出的定位效果评估指标也不一致。在船舶动力定位系统研发中，若完全依靠实船试验来判断系统性能，则不仅会耗费大量人力物力财力，如何验证这些动力定位系统的合理性和有效性，是一个值得深入研究的课题。对动力定位系统效能进行评估，是为了规范动力定位系统的设计活动，通过评估发现问题，总结经验，从而提高DP系统设计效率，完善动力定位运作机制，最终全面提高定位效能。 本文以某大型挖泥船动力定位系统为对象，从动力定位系统的RAM指标、人员指标以及综合性能指标三方面入手，研究建立了动力定位系统的评估指标体系和评估模型，以模糊综合评价法为基础，，对评估算法进行了研究和改进，并采用VB语言设计并实现了评估计算软件。 论文完成的主要工作有：(1)采用Delphi法和递阶层次结构，从RAM（可靠性、可用性、可维护性）、人员素质指标、系统综合指标三方面建立了动力定位评估指标体系；(2)研究了基于AHP的模糊综合评价算法，建立了单级模糊综合评估模型和多级模糊综合评估模型；(3)采用AHP模糊评价法和改进的IAHP-F法对动力定位系统RAM指标进行了评估；(4)将动态模糊集理论引入到动力定位系统可变因素的评价活动中，采用动态模糊综合评价法对动力定位系统可变因素人员指标进行了评估；(5)利用模糊综合评判法对动力定位系统的综合指标，即计算机控制系统、测量系统以及动力推进系统进行了评估，并分析了各个因素对评估结果的影响力大小；(6)根据动力定位系统指标体系的权值算法与综合评估模型，实现了基于VB语言的程序设计与软件开发。 论文以挖泥船动力定位系统为评估算例，对所研究的效能综合评估模型和方法进行了分析、验证，该评估方法可以为船舶动力定位系统的设计和完善提供参考依据。
[Abstract]:At present, there are many methods to study the dynamic positioning of ships at home and abroad, and the evaluation indexes of the positioning effect are not consistent. In the research and development of ship dynamic positioning system, if we rely on the real ship test to judge the system performance, we will not only spend a lot of manpower and material resources, but also how to verify the rationality and effectiveness of these dynamic positioning systems. It is a subject worthy of further study. The purpose of evaluating the effectiveness of the dynamic positioning system is to standardize the design activities of the dynamic positioning system, to improve the efficiency of the design of the DP system and to improve the operation mechanism of the dynamic positioning system by evaluating and discovering problems and summarizing the experience. Finally, the overall efficiency of positioning is improved. In this paper, the dynamic positioning system of a large dredger is taken as the object. The evaluation index system and the evaluation model of the dynamic positioning system are established from three aspects: the RAM index, the personnel index and the comprehensive performance index of the dynamic positioning system. Based on the fuzzy comprehensive evaluation method, the evaluation algorithm is studied and improved, and the evaluation calculation software is designed and implemented by VB language. The main work of this paper is as follows: (1) by using Delphi method and hierarchical structure, the dynamic positioning evaluation index system is established from three aspects: RAM (reliability, usability, maintainability), personnel quality index and system comprehensive index; (2) the fuzzy comprehensive evaluation algorithm based on AHP is studied, and the single-stage fuzzy comprehensive evaluation model and multi-stage fuzzy comprehensive evaluation model are established. (3) the RAM index of dynamic positioning system is evaluated by using AHP fuzzy evaluation method and improved IAHP-F method. (4) the dynamic fuzzy set theory is introduced into the dynamic positioning system variable factor evaluation, and the dynamic fuzzy comprehensive evaluation method is used to evaluate the dynamic positioning system variable factor personnel index. (5) the comprehensive index of dynamic positioning system, that is, computer control system, measurement system and dynamic propulsion system, is evaluated by using fuzzy comprehensive evaluation method, and the influence of each factor on the evaluation result is analyzed. (6) the programming and software development based on VB language is realized according to the weight algorithm and comprehensive evaluation model of the index system of dynamic positioning system. Taking the dynamic positioning system of dredger as an example, this paper analyzes and verifies the effectiveness comprehensive evaluation model and method, which can provide a reference for the design and improvement of ship dynamic positioning system.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U664.82
本文编号：2247781
[Abstract]:At present, there are many methods to study the dynamic positioning of ships at home and abroad, and the evaluation indexes of the positioning effect are not consistent. In the research and development of ship dynamic positioning system, if we rely on the real ship test to judge the system performance, we will not only spend a lot of manpower and material resources, but also how to verify the rationality and effectiveness of these dynamic positioning systems. It is a subject worthy of further study. The purpose of evaluating the effectiveness of the dynamic positioning system is to standardize the design activities of the dynamic positioning system, to improve the efficiency of the design of the DP system and to improve the operation mechanism of the dynamic positioning system by evaluating and discovering problems and summarizing the experience. Finally, the overall efficiency of positioning is improved. In this paper, the dynamic positioning system of a large dredger is taken as the object. The evaluation index system and the evaluation model of the dynamic positioning system are established from three aspects: the RAM index, the personnel index and the comprehensive performance index of the dynamic positioning system. Based on the fuzzy comprehensive evaluation method, the evaluation algorithm is studied and improved, and the evaluation calculation software is designed and implemented by VB language. The main work of this paper is as follows: (1) by using Delphi method and hierarchical structure, the dynamic positioning evaluation index system is established from three aspects: RAM (reliability, usability, maintainability), personnel quality index and system comprehensive index; (2) the fuzzy comprehensive evaluation algorithm based on AHP is studied, and the single-stage fuzzy comprehensive evaluation model and multi-stage fuzzy comprehensive evaluation model are established. (3) the RAM index of dynamic positioning system is evaluated by using AHP fuzzy evaluation method and improved IAHP-F method. (4) the dynamic fuzzy set theory is introduced into the dynamic positioning system variable factor evaluation, and the dynamic fuzzy comprehensive evaluation method is used to evaluate the dynamic positioning system variable factor personnel index. (5) the comprehensive index of dynamic positioning system, that is, computer control system, measurement system and dynamic propulsion system, is evaluated by using fuzzy comprehensive evaluation method, and the influence of each factor on the evaluation result is analyzed. (6) the programming and software development based on VB language is realized according to the weight algorithm and comprehensive evaluation model of the index system of dynamic positioning system. Taking the dynamic positioning system of dredger as an example, this paper analyzes and verifies the effectiveness comprehensive evaluation model and method, which can provide a reference for the design and improvement of ship dynamic positioning system.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U664.82
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