基于板壳模型的减摇鳍鳍翼水力负荷结构分析  

Hydrodynamic Load and Structural Analysis of a Fin Stabilizer Based on Fin Shell Model

作　　者：魏建庆 操安喜 金永兴[3] 付崇博 WEI Jianqing;CAO Anxi;JIN Yongxing;FU Chongbo(Shanghai Composites Science&Technology Co.,Ltd.,Shanghai 201112,China;Marine Science and Engineering College,Shanghai 201306,China;Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China)

机构地区：[1]上海复合材料科技有限公司,上海201112 [2]上海海事大学海洋科学与工程学院,上海201306 [3]上海海事大学商船学院,上海201306

出　　处：《船舶与海洋工程》2019年第5期8-13,共6页Naval Architecture and Ocean Engineering

基　　金：国家自然科学基金（51779135）

摘　　要：为了提高减摇鳍仿真模拟工作的效率和仿真模拟的精确度,基于ANSYS软件中的Workbench-component systems建立鳍翼的板壳模型,采用FLUENT软件与ANSYS软件相结合的方式对减摇鳍进行流固分析。利用FLUENT软件对某型减摇鳍鳍翼进行水动力分析,获得鳍翼在流场中的升力和阻力;将鳍翼受到的升力和阻力分别施加到基于实体单元和板壳单元的鳍翼结构有限元模型上,进行鳍翼结构响应分析。结果表明:与实体模型相比,基于板壳模型的鳍翼结构有限元分析建模工作量小、计算耗时少、数值模拟计算精度高。对于鳍翼而言,在结构上和力学性能上更适合用板壳模型进行有限元分析。In order to improve the efficiency and accuracy of fin stabilizer simulation,a shell model for the fin is established based on the ANSYS Workbench-component systems,and the fluid-structure interaction analysis is performed by combining Fluent with ANSYS.Fluent is used for the hydrodynamic analysis of the fin to obtain its lift and drag forces in the flow field;and the fin structural response analysis is then performed by applying these forces to the solid body elements and the shell elements of the fin structure.The result shows that the finite element analysis of the fin structure based on the shell model needs less modeling work and less computation time but provides higher simulation accuracy when compared with the solid body model.For fins,it is more suitable to use the shell model for finite element analysis both from the structural and mechanical property point of view.

关 键 词：板壳模型 减摇鳍 流固耦合 有限元分析 

分 类 号：U661.42[交通运输工程—船舶及航道工程]