水面小尺度漂浮平台动力学响应分析  

Analysis on dynamics response of offshore small floating platform

作　　者：谢克峰 查冰婷[2] 张合[2] 桂福坤[3] 李豪杰 XIE Ke-feng;ZHA Bing-ting;ZHANG He;GUI Fu-kun;LI Hao-jie(System Design Institute of Hubei Aerospace Technology Academy,Wuhan 430043,China;ZNDY of Ministerial Key Laboratory,Nanjing University of Science and Technology,Nanjing 210094,China;Marine Science and Technology College,Zhejiang Ocean University,Zhoushan 316000,China)

机构地区：[1]湖北航天技术研究院设计所总体设计所,武汉430043 [2]南京理工大学智能弹药技术国防重点学科实验室,南京210094 [3]浙江海洋大学海洋科学与技术学院,浙江舟山316000

出　　处：《船舶力学》2019年第5期548-557,共10页Journal of Ship Mechanics

基　　金：国家自然科学基金项目(51475243);江苏省普通高校研究生科研创新计划(KYLX15-0340);国家海洋局公益专项(201505025-2)

摘　　要：针对由弹性连接件形成的多浮体系统,基于修正的莫里森公式应用微元法推导了主平台和浮囊的受力模型,建立了水面小尺度漂浮平台的动力学方程,并分析了连接件刚度和浮囊直径对主平台幅值运动响应的影响。通过仿真和试验结果对比验证了理论模型的正确性。结果表明,连接件刚度对主平台幅值运动响应的影响远大于浮囊直径,主平台的幅值响应随连接件刚度呈"W"变化,最优的连接件刚度为40×10~4N/m;主平台的幅值响应随浮囊直径呈微弱增长,最优的浮囊直径为2.5 m。研究结果可为水面小尺度漂浮平台的弹性连接件和浮囊参数的设计提供依据。Aimed at the multi-floating body system formed by flexible connection, based on the corrected Morison formula, the force model of the host platform and the floating air bag were deduced by unit method. The dynamic equations of offshore small floating platform were established, and the effect of connection stiffness and the diameter of the floating air bag on the amplitude motion response of the host platform was analyzed. Numerical comparison with experiment reveals that the theoretical model is correct. The results show that the effect of the connection stiffness on the amplitude response of the host platform is much greater than that of the diameter of the floating air bag. The amplitude response of the host platform takes on ‘W’ shape along with the connection stiffness, and the best connection stiffness is 40×10^ N/m. The amplitude motion response of the host platform shows a slight increase along with the diameter of the floating air bag, and the best diameter of the floating air bag is 2.5 m. This paper provides a basis for the design of the flexible connection and the floating air bag of offshore small floating platform.

关 键 词：小尺度漂浮平台 动力学响应 弹性连接件 受力分析 

分 类 号：TH122[机械工程—机械设计及理论] TJ67[兵器科学与技术—武器系统与运用工程]