基于比例法的大型混流泵叶片精确建模研究
|
摘要
由于混流泵叶片空间扭曲,部分区域在进行三维建模时不够精确,因此建立了一种基于空间扭曲叶片的快速建模方法,以精确绘制混流泵叶轮叶片三维模型。以某大型混流泵扭曲叶片为例,详细分析了基于比例法的空间扭曲叶片精确建模的操作方法。对比该建模方法和常用建模方法的不同,并对所绘制的混流泵叶轮叶片三维模型进行表面光顺性分析以及面曲率检查。建立的叶片模型更加贴合原设计,为后续的数值模拟计算、仿真分析及加工制造等工作提供了更加精确的三维模型。
Due to the space distortion of mixed flow pump blade, some areas are not accurate enough for 3D modeling. A fast modeling method based on spatial twisted impeller is established to accurately draw the 3D model of the impeller of mixed flow pump. Taking the twisted blade of a large mixed flow pump as an example, the accurate modeling method of space twisted blade based on proportion calculation is analyzed. The differences between this modeling method and other common methods are compared, and the surface smoothness of the 3D model of mixed flow pump impeller is analyzed and the surface curvature is inspected. The blade model established by this method is more suitable for original design, and can provide a more accurate three-dimensional model for subsequent numerical calculation, simulation analysis and manufacturing.
Due to the space distortion of mixed flow pump blade, some areas are not accurate enough for 3D modeling. A fast modeling method based on spatial twisted impeller is established to accurately draw the 3D model of the impeller of mixed flow pump. Taking the twisted blade of a large mixed flow pump as an example, the accurate modeling method of space twisted blade based on proportion calculation is analyzed. The differences between this modeling method and other common methods are compared, and the surface smoothness of the 3D model of mixed flow pump impeller is analyzed and the surface curvature is inspected. The blade model established by this method is more suitable for original design, and can provide a more accurate three-dimensional model for subsequent numerical calculation, simulation analysis and manufacturing.
引文
[1]王宏伟,余学军,刘小兵,等.基于UG平台的离心泵叶片的三维几何建模及优化[J].机械设计与制造,2010(8):110-111.
[2]候洁,宋文武,金永鑫,等.基于N边曲面的混流式转轮叶片精确建模研究[J].水力发电,2017,43(7):76-79.
[3]胡佳伟,吕新民.基于UG的离心泵叶轮造型设计[J].农机化研究,2011,33(4):215-218.
[4]黄道见,黄程,黄锦.离心泵叶轮三维造型[J].农机化研究,2004(6):130-131.
[5]廉玲军,张礼达,余波,等.基于UG的混流式水轮机转轮叶片实体建模方法研究[J].中国农村水利水电,2008(10):129-131,135.
[6]王福军.水泵叶轮的计算机三维实体造型研究[J].农业机械学报,1997(2):68-72.
[7]邓杰,陈锐.基于木模图的混流式转轮叶片三维建模[C]∥第十七届中国水电设备学术讨论会论文集.北京:中国水利水电出版社,2009.
[8]赖喜德.叶片式流体机械的数字化设计与制造[M].成都:四川大学出版社,2007.
[9]宋文武.水力机械及工程设计[M].重庆:重庆大学出版社,2005.
[10]关醒凡.泵的理论与设计[M].北京:机械工业出版社,1987.
[11]LI Zengliang,ZHI Ruiping,ZHAO Chuanwei,et al.The 3D modeling of blades of multiphase flow helico-axial pump's rotor based on solidworks[J].Computer Aided Drafting,Design and Manufacturing,2011,21(2):1-6.
[2]候洁,宋文武,金永鑫,等.基于N边曲面的混流式转轮叶片精确建模研究[J].水力发电,2017,43(7):76-79.
[3]胡佳伟,吕新民.基于UG的离心泵叶轮造型设计[J].农机化研究,2011,33(4):215-218.
[4]黄道见,黄程,黄锦.离心泵叶轮三维造型[J].农机化研究,2004(6):130-131.
[5]廉玲军,张礼达,余波,等.基于UG的混流式水轮机转轮叶片实体建模方法研究[J].中国农村水利水电,2008(10):129-131,135.
[6]王福军.水泵叶轮的计算机三维实体造型研究[J].农业机械学报,1997(2):68-72.
[7]邓杰,陈锐.基于木模图的混流式转轮叶片三维建模[C]∥第十七届中国水电设备学术讨论会论文集.北京:中国水利水电出版社,2009.
[8]赖喜德.叶片式流体机械的数字化设计与制造[M].成都:四川大学出版社,2007.
[9]宋文武.水力机械及工程设计[M].重庆:重庆大学出版社,2005.
[10]关醒凡.泵的理论与设计[M].北京:机械工业出版社,1987.
[11]LI Zengliang,ZHI Ruiping,ZHAO Chuanwei,et al.The 3D modeling of blades of multiphase flow helico-axial pump's rotor based on solidworks[J].Computer Aided Drafting,Design and Manufacturing,2011,21(2):1-6.