北京航空航天大学学报 ›› 2008, Vol. 34 ›› Issue (10): 1159-1162.

• 论文 • 上一篇    下一篇

基于CAD模型的涡轮叶片误差检测系统

席 平, 孙肖霞   

  1. 北京航空航天大学 机械工程及自动化学院, 北京 100191
  • 收稿日期:2007-10-19 出版日期:2008-10-30 发布日期:2010-09-16
  • 作者简介:席 平(1954-),女,陕西西安人,教授,xiping@buaa.edu.cn.

Error analysis system of turbine blade based on CAD model

Xi Ping, Sun Xiaoxia   

  1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2007-10-19 Online:2008-10-30 Published:2010-09-16

摘要: 涡轮叶片型面误差检测是其制造过程中的重要环节.研究了涡轮叶片型面误差检测关键技术的实现方法,提出了基于测量数据的叶片截面关键参数的自动提取方法以及测量数据与计算机辅助设计(CAD)模型的坐标配准方法,制定了衡量叶片截面轮廓度、倾斜度、弯曲度和扭曲度的评估指标,并基于UG平台开发了叶片型面误差检测系统.应用实例表明,该系统可显著提高叶片的误差检测速度和分析质量.

Abstract: The error analysis of blade surface is very important during the process of turbine blade manufacture. Firstly, key technologies of surface inspection were studied, and the crucial parameters automation extraction algorithm for blade section from measured data was proposed. Next, the registration method between measured data and computer aided design (CAD) model was given. Meanwhile, several indexes of evaluation for blade were put forward, such as profile error, angularity error, camber error and twist error. Finally, the error analysis system of turbine blade was developed based on UG. Successful experimental results show that this system can improve the efficiency and quality of blade surface inspection.

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