基于流固耦合的机翼结构优化设计  

Optimal Design of Wing Structure Based on Fluid-Structure Coupling

作　　者：吴浩 石永康 邹楠 王浩然 WU Hao;SHI Yongkang;ZOU Nan;WANG Haoran(Intelligent Manufacturing Modern Industry College,Xinjiang University,Urumqi Xinjiang 830000,China)

机构地区：[1]新疆大学智能制造现代产业学院,新疆乌鲁木齐830000

出　　处：《机床与液压》2024年第20期108-115,共8页Machine Tool & Hydraulics

基　　金：国家自然科学基金地区科学基金项目(51965056);自治区高层次人才项目(100400027);自治区高校科研计划项目(61021800081);新疆大学科研启动项目(620312351)。

摘　　要：针对前置螺旋桨条件下复合翼无人机机翼的结构布局优化问题,采用CFD软件并基于Navier-Stokes方程和Spalart-Allmaras湍流模型的多参考系模型方法进行气动特性分析,并利用ANSYS Workbench静力学模块对机翼进行流固耦合分析。根据翼型的设计原理,以S4320作为机翼翼型进行机翼模型的建立,对机翼内部结构进行初始布局设计,并对机翼采用参数化建模;采用流固耦合对机翼施加边界条件,从而进行静力学分析;最后基于遗传聚合的响应面法进行优化。结果表明:机翼的最大变形量降低了29.3%,最大应力值下降了11.7%。此优化方法能够准确地得到机翼结构的最佳布局。In view of the wing structural layout optimization problem of the composite wing unmanned aerial vehicle under the condition of front propeller,CFD software was used and the multi-reference frame model method based on the Navier-Stokes equation and Spalart-Allmaras turbulence model was used to conduct aerodynamic analysis.The ANSYS Workbench statics module was used to conduct fluid-structure coupling analysis of the wing.According to the design principle of the airfoil,S4320 was used as the wing airfoil to establish the wing model,and the internal structure of the wing was initially designed and parametrically modeled.The fluid-structure coupling was used to apply the boundary conditions to the wing for the hydrostatic analysis.Finally,it was optimized through the response surface method based on genetic aggregation.The results show that the maximum deformation of the wing is reduced by 29.3%,and the maximum stress is reduced by 11.7%.This optimization method can be used to effectively and accurately obtain the optimal layout of the wing structure.

关 键 词：机翼结构 参数化建模 流固耦合 多参考系模型 

分 类 号：V224[航空宇航科学与技术—飞行器设计]