湖南大学学报（自然科学版）2024，Vol.51Issue(4)：1-9,9.DOI:10.16339/j.cnki.hdxbzkb.2024164
基于驻留时间控制的压气机叶片前缘砂带磨削研究
Research on Compressor Blade Leading Edge Abrasive Belt Grinding Based on Dwell Time Control
摘要
Abstract
A robotic belt grinding method for accurate control of the blade leading edge profile was proposed in this paper.The stress distribution in the contact area between the flexible abrasive tool and the leading edge of the blade was obtained by combining the semi-Hertzian contact theory and finite element simulation,and the material removal function was solved based on the Preston equation.The global material removal matrix was established by traversing the grinding depth of the control point.The resident time was set up to solve the nonlinear equations.Tikhonov regularization with a damping factor was used to eliminate the influence of a large sparse-ill-conditioned matrix on the fluctuation of solving accuracy,and then the desired dwell time was converted to the feed speed of the corresponding cutter point so as to generate the robot machining code.The grinding experiment results show that the robotic belt grinding method based on resident time control can achieve accurate machining of the leading edge profile of the blade within a given tolerance range,and the profile error can be controlled within 0.02 mm.关键词
压气机/砂带/柔性磨削/前缘廓形/驻留时间Key words
compressor/abrasive belts/flexible grinding/leading edge profile/dwell time分类
机械制造引用本文复制引用
黄云,桂林,秦涛,王文玺,邹莱,李恒..基于驻留时间控制的压气机叶片前缘砂带磨削研究[J].湖南大学学报（自然科学版）,2024,51(4):1-9,9.基金项目
重庆市自然科学基金创新群体项目(CSTC2019JCYJ-CXTTX0003),Innovation Group Science Fund of Chongqing Natural Sci-ence Foundation(CSTC2019JCYJ-CXTTX0003) （CSTC2019JCYJ-CXTTX0003）
中央高校基本科研业务费专项资金资助项目(2023CDJXY-022),Fundamental Research Funds for the Central Universities(2023CDJXY-022) （2023CDJXY-022）
重庆市研究生科研创新项目(CYB23021),Chongqing Graduate Research Innovation Project(CYB23021) （CYB23021）
