农业机械学报2011，Vol.42Issue(2)：197-202,6.
基于Frenet标架的涡旋始端型线重构与几何特性分析
Reconstruction and Geometrical Property of Top Scroll Profile Based on Frenet Frame
摘要
Abstract
According to the situation that there is no general model to express both main profile and modified top profile, a general integration equation expressed in tangential angle series was established for scroll profile. The start part of profile was reconstructed with zeroth-order curve and first-order curve, respectively. The influence of parameters of top profile on thickness of scroll tooth was analyzed quantitatively. Furthermore, the geometrical models of area of compression chamber were set up based on curvature radius function of base line. The effect of curvature radius parameters on area property was explored. This study showed that first-order curve construction of top scroll could achieve higher performance by improving volume ratio while maintain reasonable tooth strength. With continuity equation of scroll baseline in form of radius of curvature, a fully-meshed profile and complete tooth profile could be obtained in the stage of machine design, so that there was no need to modify top scroll in later stages. The results could be applied in the scroll profile design.关键词
涡旋型线/曲率半径/Frenet标架/重构/几何特性Key words
Scroll profile/Radius of curvature/Frenet frame/Reconstruction/ Geometrical property/分类
机械制造引用本文复制引用
刘涛,邬再新,芮执元..基于Frenet标架的涡旋始端型线重构与几何特性分析[J].农业机械学报,2011,42(2):197-202,6.基金项目
国家自然科学基金资助项目(50965011)和甘肃省自然科学基金资助项目(0710RJZA061、1014RJZA025) （50965011）
