工程约束下船体块体FAST装配仿真分析方法

IF 0.6 Q4 ENGINEERING, MARINE International Shipbuilding Progress Pub Date : 2021-10-08 DOI:10.3233/isp-210009
Guan Guan, Hongling Liao, Qu Yang
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引用次数: 0

摘要

为了有效提高船体块的装配效率,本文提出了一种考虑工程约束的装配仿真分析方法,并开发了一个考虑多约束的造船精度分析和装配分析集成系统。该方法分为预匹配模型和精细匹配模型。在预匹配模型中,使用改进的相干点漂移(ICPD)算法来获得更准确的初始匹配值。精细匹配模型首先使用层次分析法(AHP)算法自动获得约束权重,然后使用权重向量将船体块的装配约束如直线度、硬点约束等添加到多目标优化函数中。通过求解该函数,得到了最佳定位位置和最合理的平差方案。这种方法缩短了建造船体所用设备的占用时间,减少了工作人员的工作量,提高了造船的效率和质量。集成系统增加了工程约束分析模块和自动查找和消除误差测量点的功能。通过实例验证,该集成系统实现了船体块体装配的自动化和智能化。
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A FAST assembly simulation analysis method for hull blocks with engineering constraints
In order to effectively improve the assembly efficiency for hull blocks, an assembly simulation analysis method considering engineering constraints is proposed in this paper, and an integrated system of shipbuilding accuracy analysis and assembly analysis considering multi-constraints is developed. The method is divided into pre-matching model and fine matching model. In the pre-matching model, an Improved Coherent Point Drift (ICPD) algorithm is used to obtain more accurate initial matching values. The fine matching model firstly uses the Analytic Hierarchy Process (AHP) algorithm to automatically obtain the constrained weights, then the weights vector is used to add the assembly constraints for hull blocks such as straightness, hard point constraints etc. into the multi-objective optimization function. By solving the function, the optimum positioning location and the most reasonable adjustment scheme are obtained. This method shortens the occupancy time of the equipment used to build the hull, reduces the workload of the staff, and improves the efficiency and quality of shipbuilding. The integrated system adds engineering constraints analysis module and the function of automatically finding and eliminating error measurement points. Through the verification of the examples, the integrated system realizes the automation and intellectualization of the assembly for hull blocks.
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来源期刊
CiteScore
2.60
自引率
0.00%
发文量
8
期刊介绍: The journal International Shipbuilding Progress was founded in 1954. Each year four issues appear (in April, July, September and December). Publications submitted to ISP should describe scientific work of high international standards, advancing subjects related to the field of Marine Technology, such as: conceptual design structural design hydromechanics and dynamics maritime engineering production of all types of ships production of all other objects intended for marine use shipping science and all directly related subjects offshore engineering in relation to the marine environment ocean engineering subjects in relation to the marine environment
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