摘要
为得到高质量的航空发动机压气机叶片型面,采用三维扫描仪准确测量获取叶片点云数据,将点云数据去噪和精简处理后等距提取叶型截面点云并存储为二维数据。利用Matlab软件对叶型截面二维点云数据采用三次B样条曲线整体逼近拟合的方法形成叶身截面曲线,并在SolidWorks软件中放样生成叶身型面。逆向建模后的叶片可借助UG二次开发生成磨削抛光路径轨迹线,成功实现了叶片模型的应用。结果表明逆向建模成型后的叶片精确性高,光顺性好并且对解决实际的工程问题提供帮助。
In order to obtain high-quality aero-engine compressor blade profile,the point cloud data was accurately measured by the 3 D scanner,the blade-section point cloud was extracted equidistantly and stored as two-dimensional data after denoising and streamlining of the point cloud data.The Matlab software was used to generate the section curve by using the cubic B-spline curve global approximation fitting method for the two-dimensional point cloud data of the blade-section,and the blade body profile was formed by staking out in SolidWorks software.The reverse-modeled blades can be used to generate the grinding and polishing path trajectory by means of UG secondary development to comply the application of the blade model.The results show that the reverse modeled blade has high accuracy,good smoothness and provides help to solve practical engineering problems.
作者
董艇舰
桑超
张吉
DONG Ting-jian;SANG Chao;ZHANG Ji(Examination Administration,Civil Aviation University of China,Tianjin 300300,China;College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China)
出处
《机械设计与制造》
北大核心
2022年第1期193-197,共5页
Machinery Design & Manufacture
基金
航空发动机叶片修复中激光与材料相互作用机理及关键技术研究(U1333121)。
关键词
压气机叶片
逆向建模
三次B样条曲线
逼近拟合
UG二次开发
Compressor Blade
Reverse Modeling
Cubic B-Spline Curve
Approximation Fitting
UG Secondary Development
