摘要
[目的]旨在预报复合材料螺旋桨的水动力性能并研究其流固耦合特性。[方法]结合边界元法(BEM)和有限元法(FEM)建立复合材料螺旋桨流固耦合计算方法,以边界元法计算复合材料螺旋桨桨叶表面压力及水动力,并将计算得到的桨叶表面压力传递到有限元结构模型中,然后以有限元法预报复合材料螺旋桨桨叶受到载荷时的位移与应力分布,并将变形传递到螺旋桨边界元法水动力计算中,从而实现双向流固耦合计算;应用该方法对5471桨进行计算并与文献中的试验值进行对比分析,以验证该方法的可行性,随后将5471桨型复合材料螺旋桨与刚性桨的水动力性能进行对比分析。[结果]结果显示,采用所提方法可实现复合材料螺旋桨水动力性能分析,具有实施简单、计算效率高、准确等优点。[结论]所做研究可为复合材料螺旋桨的自适应性设计工作提供可靠的数据支撑,提升复合材料螺旋桨的设计效率。
[Objective]This study seeks to predict the hydrodynamic properties of composite propellers and analyze their fluid-structure interaction characteristics.[Methods]Combined with the boundary element method(BEM) and finite element method(FEM),a composite propeller fluid-structure interaction calculation method is established.The surface pressure and hydrodynamic force of the composite propeller blade are calculated by BEM,and the calculated surface pressure of the propeller is transferred to a finite element structure model.The displacement and stress distribution of the composite propeller under load are then predicted by FEM,and the deformation is transferred to the hydraulic force calculation of the propeller BEM so as to realize two-way fluid-structure interaction calculation.The feasibility of this method is verified by calculating a5471 propeller and comparing it with the experimental values in the literature,then comparing and analyzing the hydrodynamic performance of the 5471 composite propeller and a rigid propeller.[Results] The results show that the proposed method can realize the hydrodynamic performance analysis of composite propellers,which has the advantages of simple implementation,high calculation efficiency and high accuracy.[Conclusion]The findings of this study can provide reliable data support for the adaptive design of composite propellers and improve their design efficiency.
作者
郭春雨
朱世祺
叶礼裕
王超
GUO Chunyu;ZHU Shiqi;YE Liyu;WANG Chao(Qingdao Innovation and Development Base,Harbin Engineering University,Qingdao 266400,China;Harbin Electric Machinery Co.,Ltd.,Harbin 150040,China;Hudong-Zhonghua Shipbuilding(Group)Co.,Ltd.,Shanghai 200129,China;College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《中国舰船研究》
CSCD
北大核心
2024年第6期191-200,共10页
Chinese Journal of Ship Research
基金
国家自然科学基金资助项目(52171300)。
关键词
船用螺旋桨
复合材料螺旋桨
流固耦合
边界元法
有限元法
ship propellers
composite propellers
fluid-structure interaction
boundary element method
finite element method