Abstract: In order to rebuild impeller 3D models in the reverse engineering of pumps,the complete inside complex construction information of an impeller needs to be obtained in advance. With help of ICT,367 high quality fault images of two typical centrifugal pump impellers were acquired,and the format of those images was converted to BMP from RAW through a code specially developed for the images.From these fault images volume rendering was fulfilled by using MFC,OpenGL,ADO,and VTK tools and a series of algorithms for digital image processing on the VC++ 6.0 platform.An object oriented code,named ReImpeller3D,which consists of several input and output interfaces,was developed for the reverse engineering of pump impeller.This code can supply geometrical models to numerical simulation,FEM,RP,digitized manufacturing and redesign of production.The rebuilding example showed that applying the volume rendering to rebuild the 3D model of a pump impeller is feasible.
蒋小平, 施卫东, 李伟, 刘厚林, 谈明高. 基于工业CT的水泵叶轮体绘制法三维重建[J]. 排灌机械工程学报, 2011, 29(6): 487-491.
JIANG Xiao-Ping, SHI Wei-Dong, LI Wei, LIU Hou-Lin, TAN Ming-Gao. 3D rebuilding of volume rendering for pump impeller based on ICT. Journal of Drainage and Irrigation Machinery Engin, 2011, 29(6): 487-491.
[1]施卫东,蒋小平,李 伟,等.基于CT的水泵叶轮三维重建[J].农业机械学报,2010,41(3):100-103.Shi Weidong,Jiang Xiaoping,Li Wei,et al.3D reconstruction on impeller of pumps based on CT[J].Transactionsof the Chinese Society for Agricultural Machinery,2010,41(3):100-103.(in Chinese)[2]郑卫国,颜永年,卢清萍,等.基于CT图像的快速成形数据建模方法[J].中国机械工程,2002,20(13):1734-1737.Zheng Weiguo,Yan Yongnian,Lu Qingping,et al.A modeling method for rapid prototyping based on CT images[J].China Mechanical Engineering,2002,20(13):1734-1737.(in Chinese) [3]付丽琴,陈树越.反求工程中的实的数据获取技术[J].测试技术学报,2001,15(4):248-252.Fu Liqin,Chen Shuyue.Object data acquisition in reverse engineering[J].Journal of Test and Measurement Technology,2001,15(4):248-252.(in Chinese)[4]张京平,张 华,王 会.富士苹果主要成分的CT无损检测[J].农业机械学报,2008,39(7):99-102. Zhang Jingping,Zhang Hua,Wang Hui.Nondestructive test of Fuji apple′s major components by CT[J].Transactions of the Chinese Society for Agricultural Machinery,2008,39(7):99-102.(in Chinese)[5]金 涛,童水光.逆向工程技术[M].北京:机械工业出版社,2003. [6]Lee K H,Woo H,Suk T.Data reduction methods for reverse engineering[J].Internation Journal of Advanced Manufacturing Technology,2001,17(10):735-740.[7]何 斌,马天宇,王运坚,等.Visual C+[KG-*2]+数字图像处理[M].北京:人民邮电出版社,2001.[8]Sattar F,Gao X.Image enhancement based on a nonlinear multiscale method using dualtree complex wavelet transform[C]∥Proceedings of the IEEE Pacific RIM Conference on Communications,Computers and Signal Processing,2003:716-719.[9]Ma W.Constructing a CAD Model from Physical Part through CTScanning[M].New York:McGrawHill,1998.[10]Kennethr.Castle Man Digital Image Processing[M].New York:PrenticeHall International Inc,1996.