轴流式涡轮增压器涡轮叶片的优化设计

对轴流式涡轮增压器涡轮叶片进行参数化建模,针对叶片设计提出一种基于多学科的优化方法,并建立一个优化平台.优化平台采用多学科优化设计工具iSIGHT集成NUMECA、ANSYS以及自编的离心应力分析程序,在气动、结构以及振动三个学科内对轴流式增压器涡轮叶片进行化设计.优化的实例表明,这种方法提高了增压器涡轮的整体性能,可以应用在叶片设计以及整个增压器的设计中.

OPTIMIZATION DESIGN FOR TURBINE BLADE OF THE AXIAL TURBOCHARGER

The blade of axial turbocharger was parameterized into to a three dimensional model, and an optimization design platform was introduced for turbocharger turbine blade design. The platform was based on the iSIGHT software and implemented by NUMECA, ANSYS and centrifugal stress code which is a fortran program coded by the authors. This platform can study aerodynamics, structure and vibration of the blade of turbocharger simultaneously. And an illustration had been studied. The result of optimization shows that the overall performance of the blade is improved remarkably. The method can be used to the blade design and to the whole turbocharger design.