航空发动机损伤叶片快捷修复方法研究  

Research on Quick Repair Methods for Damaged Blades of Aeroengine

作　　者：彭志强[1] 樊辰 谭伟林[1] PENG Zhiqiang;FAN Chen;TAN Weilin(Hunan Vocational College of Railway Technology,Zhuzhou,Hunan 412006,China)

机构地区：[1]湖南铁路科技职业技术学院,湖南株洲412006

出　　处：《自动化应用》2023年第21期139-141,158,共4页Automation Application

基　　金：2021年湖南省教育厅科学研究项目一般项目(21C1318)。

摘　　要：航空发动机损伤叶片部位修复过程复杂,修复结果受操作人员技术水平、经验影响较大,不利于快捷化、高质量、标准化修复。本文尝试运用损伤叶片的STL模型,将若干平面切割STL模型生成叶片曲面部分的截面点云,并将已知点云借助MATLAB进行曲线拟合推导得出缺失截面曲线,完成截面曲线阶段的修复;运用Siemens NX软件的曲面工具将截面曲线生成叶片曲面,完成叶片曲面修复。该方法思路清晰、操作简单、便捷可靠,经过第三方软件Geomagic Control验证逆向修复模型和逆向加工结果,显示修复结果基本符合使用要求,表明该方法对快捷修复损伤叶片具有实用价值。The repair process of damaged blades in aeroengines is complex,and the repair results are greatly influenced by the technical level and experience of the operators,which is not conducive to fast,high-quality,and standardized repair.This paper attempts to use the STL model of damaged blades to generate section point clouds of the blade surface by cutting several planes into STL models.And use MATLAB to perform curve fitting on known point clouds to derive missing section curves,completing the repair of the section curve stage.Use the surface tool of Siemens NX software to generate blade surfaces from cross-sectional curves and complete blade surface repair.This method has a clear idea,simple operation,and is convenient and reliable.After being validated by third-party software Geomagic Control,the reverse repair model and reverse machining results show that the repair results basically meet the usage requirements,indicating that this method has practical value for quickly repairing damaged blades.

关 键 词：航空发动机 损伤叶片 快捷修复 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程]