机械科学与技术2018，Vol.37Issue(1)：43-54,12.DOI:10.13433/j.cnki.1003-8728.2018.0108
B样条在螺杆转子型线反向设计方法中的应用
Application of B-spline in Reverse Design Method of Screw Rotor Profiles
摘要
Abstract
In view of the one-to-one correspondence between the meshing line and the rotor profile,which can reflect some important performance parameters of the rotor profile,and considering that the disadvantage of " rotor method" and "rack method",a new method of profile design are derived based on meshing line for the twin screw compressor,in which B-spline curve is used as part of meshing line in order to modify the rotor profiles and control the shape of the meshing line more conveniently.On the basis of the existing rotor profile,a meshing line is designed based on the B-spline,and the reverse design method is applied to design a pair of male and female rotor profiles.The CFD simulation of the final rotor profile is carried out under different working conditions and compared with the traditional design results,and then the characteristics of its internal flow field are analyzed.Finally,the reliability of the simulation results is verified by experiment,and the results show that the new design method is feasible and reliable for the twin screw compressor.关键词
啮合线/B样条/反向设计/CFD/实验验证Key words
meshing line/B-spline/reverse design/CFD/experimental verification分类
机械制造引用本文复制引用
何雪明,施国江,武美萍,张荣,纪小刚..B样条在螺杆转子型线反向设计方法中的应用[J].机械科学与技术,2018,37(1):43-54,12.基金项目
国家自然科学基金项目(51275210 （）
51105175)与六大人才高峰项目(2013-ZBZZ-016)资助 （2013-ZBZZ-016）
