Study on inverse design of screw rotor profile based on NURBS curve

Authors

HUANG Hainan, Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
HE Xueming, Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
ZHANG Rong, School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China
JIANG Zhengang, Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China

Abstract

The design method of screw rotor based on meshing method and NURBS curve is proposed. In the process of the designing, the formula of the quadrature was obtained. This paper solveed the envelop condition of NURBS curve, and realizes the reverse design of the whole line of NURBS curve which was determined by the control point, weight factor and node vector. Through this method, the compound line of the error was obtained within 0.5 μm microns and the relation between the performance and meshing lines is explored. The feasibility of reverse design of screw rotor by using NURBS curve wes verified. Using the local modification of NURBS curve to optimize the type line, the leakage triangle area of the rotor was reduced by 5%, and the area utilization coefficient increased by 1%. The theory and method for the optimization design of rotor line of double screw compressor is provided.

Publication Date

3-28-2018

First Page

93

Last Page

97,145

DOI

10.13652/j.issn.1003-5788.2018.03.020

Recommended Citation

Hainan, HUANG; Xueming, HE; Rong, ZHANG; and Zhengang, JIANG (2018) "Study on inverse design of screw rotor profile based on NURBS curve," Food and Machinery: Vol. 34: Iss. 3, Article 20.
DOI: 10.13652/j.issn.1003-5788.2018.03.020
Available at: https://www.ifoodmm.cn/journal/vol34/iss3/20

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