车用涡轮增压器叶轮骨架成型的MATLAB实现方法研究

Implementation Method for Skeleton Forming of Vehicle Turbocharger Impeller Based on MATLAB

阐述了车用增压器压气机叶轮骨架成型法的原理,介绍了该设计中各参数的计算方法,即:前倾曲线的确定,后弯角的计算,后弯曲线半径求解,后弯曲线圆心坐标的确定,以及吸力面和压力面的曲面离散化,用三维作图软件绘制了用骨架成形法设计的压气机叶轮。

The paper describes the principles of the compressor impeller skeleton molding method, introduces ways to calculate various parameters in this design, i.e., the determination of rake curve, the calculation of backward-bend angle, the solving for the radius of backward-bend line and the determination of backward-bend line center coordinates. Finally, using NX7.5 software, the compressor impeller is mapped out as designed by this method.