航空学报 > 2014, Vol. 35 Issue (11): 3190-3198   doi: 10.7527/S1000-6893.2014.0006

压气机叶片辊轧模具型腔快速建模技术

王渊彬, 汪文虎, 张艳, 解晓娜   

  1. 西北工业大学 现代设计与集成制造技术教育部重点实验室, 陕西 西安 710072
  • 收稿日期:2013-12-03 修回日期:2014-03-04 出版日期:2014-11-25 发布日期:2014-03-07
  • 通讯作者: 汪文虎,Tel.: 029-88490427 E-mail: npuwwh@nwpu.edu.cn E-mail:npuwwh@nwpu.edu.cn
  • 作者简介:王渊彬 男, 博士研究生.主要研究方向: 计算机辅助技术、现代集成制造. Tel: 029-88493232-227 E-mail: wyb77960188@gmail.com; 汪文虎 男, 博士, 教授, 博士生导师.主要研究方向: 计算机辅助技术、现代集成制造. Tel: 029-88490427 E-mail: npuwwh@nwpu.edu.cn; 张艳 女, 硕士研究生.主要研究方向: 计算机辅助技术、现代集成制造. Tel: 029-88493232-227 E-mail: zhang.yan221@163.com

Rapid Modeling Technology of Rolling Mold Cavity of Aero-engine Compressor Blade

WANG Yuanbin, WANG Wenhu, ZHANG Yan, XIE Xiaona   

  1. Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2013-12-03 Revised:2014-03-04 Online:2014-11-25 Published:2014-03-07

摘要:

为适应压气机辊轧叶片模具型腔的敏捷化设计需求,提出一种型腔模型建模方法.依据叶片气动外形及建模效率的双重要求,以叶片中弧面曲率变化规律作为评判基准,规划工艺模型截面线族的位置与数量;基于此,建立截面线族映射法则以完成工艺模型叶形截面线族至辊轧模具扇面的重新空间分布,由所得型腔模型截面线族重构型腔型面;通过与回转体的布尔运算获得辊轧叶片模具型腔;以通用CAD软件为平台,开发了压气机叶片辊轧模具型腔自动化建模系统,实现了模具型腔的快速建模,使压气机辊轧叶片模具建模效率得到显著提高.

关键词: 辊轧, 压气机叶片, 模具型腔, 截面线族提取, 空间分布, 建模

Abstract:

The work presented in this paper focuses on several aspects of a new technology of rolling mold cavity modeling of the aero-engine compressor blade to adapt to the demand of rapid design and manufacture. A method is given to extract the section curves of a cold rolling blade based on the change of blade curvature in order to reduce the number of section curves while satisfying the accuracy requirements of mold cavity. Accordingly, a mapping algorithm is established for changing the spatial distribution of section curves so as to map them along with the roller surface and then fit these curves into mold cavity surfaces. Then the mold cavities are acquired by Boolean operations of rotators and cavity surfaces. Finally, a modeling system, using the general CAD software as platform, is developed by applying the above method. The study shows that the method is able to realize rapid modeling and the efficiency of rolling mold modeling is improved dramatically.

Key words: cold rolling, compressor blade, mold cavity, section curves extracting, spatial distribution, modeling

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