| 基于工艺可行性的离散变量结构动力特性设计优化 |
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| 引用本文： | 黄海燕,林志祥,王德禹.基于工艺可行性的离散变量结构动力特性设计优化[J].船舶力学,2012,16(4):416-421. |
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| 作者姓名： | 黄海燕 林志祥 王德禹 |
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| 作者单位： | 江苏科技大学船舶与海洋工程学院,江苏镇江,212003;云南农业大学水利水电与建筑学院,昆明,650201;上海交通大学海洋工程国家重点实验室,上海,200030 |
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| 基金项目： | 江苏省船舶先进设计制造重点实验室开放研究基金 |
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| 摘 要： | 基于船舶工艺可行性分析,建立了使用自适应模拟退火算法的多工况下船体结构动力特性设计优化模型;并给出了相应的设计流程。模型使用矩阵描述由板材厚度和骨材型号构成的离散变量集合,同时将全体设计变量处理为共享设计变量。将模型应用于某集装箱船艉部结构的动力特性设计优化中,优化后的结构不仅减轻了自重,而且增加了频率储备。实例分析表明该模型能应用于工程结构的实际优化设计。
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| 关 键 词： | 优化 工艺可行性 离散变量 频率禁区 动力特性 |
Structure dynamic characteristic optimization based on technology feasibility and discrete design variable sets |
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| HUANG hai-yan
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LIN Zhi-xiang
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WANG De-yu.Structure dynamic characteristic optimization based on technology feasibility and discrete design variable sets[J].Journal of Ship Mechanics,2012,16(4):416-421. |
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| Authors: | HUANG hai-yan LIN Zhi-xiang WANG De-yu |
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| Institution: | 1 School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China; 2 School of Water Resources, Hydraulic Power and Architecture, Yunnan Agricultural University, Kunming 650201, China; 3 State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200030, China) |
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| Abstract: | A dynamic characteristic optimization model for ship structure design under multiple loading conditions and its design flow are developed based on technology feasibility analysis and discrete design variable sets. The adaptive simulated annealing optimization algorithm is used in this model. The discrete design variable sets including the thickness of plate and the model number of beam are depicted with matrix.All the design variables are regarded as the global sharing design variables in optimization process. An optimization example of ship stern is used to demonstrate the model proposed in this paper.The obtained optimal design indicates the great potential of decreasing structural mass and increasing natural frequency reserve.The results show the model is feasible and well-suited for dynamic characteristic optimization of engineering structures. |
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| Keywords: | optimization technology feasibility discrete design variable frequency forbidden zone dynamic characteristic |
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