• CN:11-2187/TH
  • ISSN:0577-6686

›› 1987, Vol. 23 ›› Issue (3): 69-76.

• 论文 • 上一篇    下一篇

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离心式压气机椭圆叶型成型方法

任柏森   

  1. 上海内燃机研究所
  • 发布日期:1987-06-01

PROFILING METHOD OF CENTRIFUGAL COMPRESSOR HAVING ELLIPTIC VANE SHAPES

Ren Bosen   

  1. Shanghai Internal Combustion Engine Research Institute
  • Published:1987-06-01

摘要: 随着高性能、高压比离心式压气机的发展、文献[1]指出:椭圆成型是一种最佳叶型。本文提出了一种椭圆叶型成型方法,该法采用极坐标系代替笛卡儿坐标系,建立了以椭圆中心为极点的简单极坐标方程。直接推导了叶片翘曲角β s,β h[2][3]与极角ψ之间关系式,并给出了β s,β h沿轮盖、轮毂回转面的分布规律。通过95mm轮径压气机示例计算,证实了本文所提出方法是简单而可行的。

Abstract: With the development of high performance and high pressure ratio centrifugal compressor, it is pointed out in reference[1]that the elliptic type is a optimal vane shape during higher pressure ratio. This paper presents a profiling method of elliptic vane shape in which a simple polar equation with elliptic center as pole were estalished by adopting the polar coordinates instead of Descartes coordinates. The relationship between vane camber angleβs,βh[2][3]and polar angle ψ were directly directly derived to give the distribution of vane camber angles βs, βh along the revolution surface of hub and shroud. As an example, the author calculated a centrifugal impeller with a diameter of 95mm just to show that this method is simple and feasible.