CAJ | 학술논문

为了研究易变性复合材料螺旋桨在水动力作用下的变形特性，通过流体计算控制方程和结构有限元方程，建立复合材料螺旋桨流固耦合算法，并利用Ansys/Ansys CFX软件计算流固耦合下指定材料的系列螺旋桨水动力性能，将NBA材料桨计算结果与试验结果进行对比，验证了流固耦合算法的准确性。分析了指定复合材料螺旋桨变形前后水动力性能变化，在此基础之上，进一步分析了复合材料桨叶在特定进速下的应力分布，以及不同进速下各桨叶的变形规律。
위료연구역변성복합재료라선장재수동력작용하적변형특성，통과류체계산공제방정화결구유한원방정，건립복합재료라선장류고우합산법，병이용Ansys/Ansys CFX연건계산류고우합하지정재료적계렬라선장수동력성능，장NBA재료장계산결과여시험결과진행대비，험증료류고우합산법적준학성。분석료지정복합재료라선장변형전후수동력성능변화，재차기출지상，진일보분석료복합재료장협재특정진속하적응력분포，이급불동진속하각장협적변형규률。
In order to study the deformation of flexible marine propellers under the hydrodynamic effect , a two-way fluid-structure interaction method was established with governing equations of fluid and structure .The open performance of specified material propellers was calculated using Ansys CFX .Compared with experiment data , the predicted results of NBA material blades agree well with the experimental data .And the open-water curves were compared corresponding to the un-deformed and deformed propeller shapes .Based on that , the predicted von Mises stress distributions of composite propeller at specified speed were analyzed , and the deformation behavior in different speed was also found .