全回转重吊船关键区域多体动力耦合优化设计  

Optimal Design of the Key Area of a Full Swing Heavy Lifting Vessel Based on Multi-Body Dynamic Coupling Responses

作　　者：孟珣[1] 唐品 邓兴旗 生训宁 李德江 MENG Xun;TANG Pin;DENG Xing-qi;SHENG Xun-ning;LI De-jiang(College of Engineering, Ocean University of China, Qingdao 266100, China;Huadong Engineering Corporation Limited, Power China, Hangzhou 311122, China;CIMC Raffles Offshore Limited, Yantai 264035, China)

机构地区：[1]中国海洋大学工程学院,山东青岛266100 [2]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122 [3]烟台中集来福士海洋工程有限公司,山东烟台264035

出　　处：《海岸工程》2022年第1期13-25,共13页Coastal Engineering

基　　金：国家自然科学基金面上项目——浮式多体系统近场流固耦合与多体运动相关性研究(52071307);国家自然科学基金基础科学中心项目——多场多体多尺度耦合及其对海工装备性能与安全的影响机制(52088102);山东省重点研发计划项目——海上透水结构体设计技术研究(2020CXGC010702)。

摘　　要：基于多学科交叉技术,本文提出了一种考虑运动和动力耦合的复杂多体系统优化设计分析方法。基于ADAMS(Automatic Dynamic Analysis of Mechanical Systems)平台建立全回转重吊船刚柔耦合虚拟样机,以AQWA(Advanced Quantitative Wave Analysis)软件计算的船体水动力时域响应作为运动驱动,完成典型服役海况下系统关键区域应力耦合响应特征分析。依托ANSYS有限元软件优化模块,结合客观熵权TOPSIS(Technique for Order Preference by Similarity to an Ideal Solution)决策方法得到该区域最优设计方案。分析表明:船体横摇及垂荡对支撑区域动力响应影响较大;相较船体静止,横摇、垂荡耦合运动使吊装绳索张力与支撑区域关键节点应力增幅均超过20%;对比初始方案支撑结构的钢材用量,最优方案可节省12.30%。将虚拟样机技术与有限元力学分析结合并融入管理科学的多目标优化和多准则决策,可提高复杂多体系统的分析效率,得到科学合理的设计方案。A method for optimal design and analysis of complex multi-body systems considering motion and dynamical coupling is proposed by using multidisciplinary crossover technology.A rigid-flexible coupling virtual prototype of the full swing heavy crane vessel is established based on Automatic Dynamic Analysis of Mechanical Systems(ADAMS).The analysis of stress-coupling response characteristics of the key area of the system under the typical sea conditions is completed by taking the hull time-domain hydrodynamic response calculated using the Advanced Quantitative Wave Analysis(AQWA)as the motion driving.The optimal design scheme of the key area is obtained by optimizing the module with the ANSYS finite element analysis software and combining the objective entropy weight TOPSIS(Technique for Order Preference by Similarity to an Ideal Solution)decision-making method.The analyses indicate that the dynamic response of the support area can be greatly affected by the rolling and heaving of the hull.Compared with the static hull,the rolling and heaving coupling motion makes both the tension of hoisting rope and the stress of the key nodes in the support area increase over 20%.And compared with the initial scheme,the optimized scheme can make the steel consumption of the support structure save by 12.30%.It can be seen that by integrating the virtual prototype technology and the finite element mechanical analysis into the multi-objective optimization and multi-criterion decision making in management science,the analysis efficiency of a complex multi-body system can be improved and a scientific and reasonable design scheme can be obtained.

关 键 词：重吊船 优化设计 多体耦合 虚拟样机 多准则决策 

分 类 号：U674.35[交通运输工程—船舶及航道工程]