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首页> 外文期刊>International journal of computational methods >Topology Optimization of the Interior Structure of Blades with an Outer Surface Determined Through Aerodynamic Design
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Topology Optimization of the Interior Structure of Blades with an Outer Surface Determined Through Aerodynamic Design

机译：通过空气动力学设计确定具有外表面的刀片内部结构的拓扑优化

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This work performs a topology optimization of the interior structure of engine blades in compressors with any given geometry of the desired outer-surface shape that may be determined by CFD and aerodynamic design software for the desired performance for thermal and fluid flows. A lofted compressor airfoil surface from the aerodynamic design was used to create a three-dimensional (3D) solid in SolidWorks. This was converted to an .IGS file that would be imported into HyperMesh? for the meshing and submitted to OptiStruct? for optimization. An optimization process is designed to produce an optimal interior structure, considering both pressure on the outer surface and centrifugal forces produced by rotational movements. The optimized blade becomes hollow in an optimal pattern with minimum materials needed for the pressure loading on outer skin and the distributed centrifugal forces. The final design was compared to the initial design using finite element method (FEM) to confirm that the mass, stress, strain, and displacement were reduced. The mass was reduced by 59.8% and the stresses reduced by a factor of 3.66! These results were validated by conducting a mesh independence study. 3D printers were used to produce the optimized blades in both plastic and metal.
机译：该工作执行压缩机中发动机叶片内部结构的拓扑优化，其中所需的外表面形状的任何给定的外表面形状可以通过CFD和空气动力学设计软件来确定用于热和流体流动的所需性能。来自空气动力学设计的一款诡计的压缩机翼型表面用于在SolidWorks中产生三维（3D）固体。这被转换为将被导入到hypermesh的.igs文件？为啮合并提交给OptiStruct？优化。优化过程旨在产生最佳的内部结构，考虑到通过旋转运动产生的外表面和离心力的压力。优化的刀片以最佳的图案中的最佳图案中空，具有外皮上的压力负荷和分布式离心力所需的最小材料。将最终设计与使用有限元法（FEM）进行比较，以确认质量，应力，应变和位移降低。质量减少59.8％，压力减少了3.66倍！通过进行网状独立性研究验证了这些结果。 3D打印机用于生产塑料和金属中的优化刀片。

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