Multi-type ribs of turbine blade modeling method fitting bowed-twist wall
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摘要: 针对弯扭冷却通道内扰流肋的特点，提出了基于等距曲面的扰流肋造型方法，用隔肋等距面和叶盆或叶背等距面裁剪平板工具体得到肋条，以此为基础完成扰流肋建模.深入分析了该方法的原理；提出隔肋面自动识别和曲面匹配算法；提取了关键造型参数；给出了基于草图的参数化实现方法，并在UG上开发出了造型模块，实现了适应弯扭隔肋的多种扰流肋造型.
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关键词:
- 扰流肋 /
- 弯扭隔肋 /
- 等距曲面 /
- 涡轮叶片 /
- UG Open API
Abstract: Considering the geometric features of ribs in a bowed-twist cooling passage, a modeling method based on equidistant was presented. It generated rib tools, which was a tablet trimmed by equidistant surfaces of walls in intracavity of blade and pressure slide or suction slide, and then conducted modeling of ribbed channels. Furthermore, the principle of the modeling method was deeply analyzed, and two algorithms were developed, one recognized surfaces of walls in intracavity of blade automatically, the other matched two surfaces. The main parameters were determined as well. Meanwhile, a means based on sketch to parameterize ribbed channels was provided. Eventually, the parametric design module of ribbed channels was developed on unigraphics (UG), which achieved multiple ribbed channels modeling.-
Key words:
- ribs /
- bowed-twist wall /
- equidistant surface /
- turbine blade /
- UG Open API
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[1] 航空发动机设计手册总编委会. 航空发动机手册第十册[M].北京:航空工业出版社,2000:8-9 Editorial Board of Aircraft Engine Design Manual.Aircraft engine design manual volume 10[M].Beijing:Aviation Industry Press,2000:8-9(in Chinese) [2] 倪萌,朱惠人, 裘云,等.航空发动机涡轮叶片冷却技术综述[J].燃气轮机技术.2005,18(4):25-33 Ni Meng,Zhu Huiren,Qiu Yun,et al.Review of aero-turbine blade cooling technologies[J].Gas Turbine Technology,2005,18(4):25-33(in Chinese) [3] Ekkad S V, Pamula G,Shantiniketanam M.Detailed heat transfer measurements inside straight and tapered two-pass channels with rib turbulators[J].Experimental Thermal and Fluid Science,2000,22(3/4):155-163 [4] 夏禹. 涡轮叶片造型CAD系统研究[D].西安:西北工业大学,2004 Xia Yu.The research on turbine blade CAD modeling system[D].Xi'an:Northwestern Polytechnical University,2004(in Chinese) [5] 宋田庆, 莫蓉,夏禹,等.航空发动机叶片CAD造型方法[J].航空制造技术,2007(2):78-81 Song Tianqing,Mo Rong,Xia Yu,et al.CAD modeling method for aeroengine blade[J].Aeronautical Manufacturing Technology,2007(2):78-81(in Chinese) [6] Hoschek J, Müller R.Turbine blade design by lofted B-spline surfaces[J].Journal of Computational and Applied Mathematics,2000,119(1/2):235-248 [7] 朱谦,宁涛, 席平.基于引导线的涡轮气冷叶片伸根建模方法[J].北京航空航天大学学报，2012,38(8):1085-1089 Zhu Qian,Ning Tao,Xi Ping.Root extending section of turbine modeling method based on guide curves[J].Journal of Beijing University of Aeronauties and Astronautics,2012,38(8): 1085-1089(in Chinese) [8] 席平,朱谦, 张宝源.涡轮叶片冷气通道转接段的特征分析及建模[J].图学学报,2012,33(4):37-41 Xi Ping,Zhu Qian,Zhang Baoyuan.Feature analysis and modeling of cooling passages transition section in turbine blade[J].Journal of Graphics,2012,33(4):37-41( in Chinese) [9] Piegl L A, Tiller W.Computing offsets of NURBS curves and surfaces[J].Computer-Aided Design,1999,31(2):147-156 -
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