摘要
逆向工程能为水泵叶轮的数值模拟、有限元分析、快速成形、产品数字化加工制造以及优化设计等提供直接的几何模型支持.在VC++6.0平台上,应用MFC,ADO,OpenGL,VTK等开发工具,利用模块化编程技术,针对从工业CT获取的叶轮高精度断层切片图像序列,通过图像预处理、二维图像处理以及二维几何处理等数字图像处理技术,编程完成了叶轮断层图像序列表面轮廓的三角面片三维重建及半边结构边界模型的叶轮三维实体转换,开发出了具有多个数据输入、输出接口的水泵叶轮逆向工程软件ReImpeller.应用该软件重建得到了精度较高的叶轮三维模型,以STL数据格式导出并进行快速成型,重建的叶轮零件与其原型相比,形状误差仅为0.64%,表明ReImpeller具有一定的可行性与实用性.
Reverse engineering can supply geometrical models for numerical simulation, FEM, RP, digitized production, and optimization design. Based on VC＋＋ 6.0, using MFC, ADO, OpenGL, VTK and other developing tools, applying modular programming technology, targeted at high quality ICT images from pump impeller, through a series of algorithms on digital image processing, such as image preprocessing, two dimensional image processing, and two dimensional geometry processing, fulfilling surface reconstruction and transformation of the image sequence from B-Rep to 3D solid mo- del, a nmhi-input-and-out-interfaced reverse engineering software for pump impeller, ReImpeller, was developed. By applying ReImpeller, a reconstructed three-dimensional model of the impeller with high accuracy was obtained. Rapid prototyping was also obtained through exporting STL. The shape error between the reconstructed impeller part and its prototype is only 0.64% , indicating that Relmpeller is feasible and practical.
出处
《排灌机械工程学报》
EI
北大核心
2013年第2期118-122,共5页
Journal of Drainage and Irrigation Machinery Engineering
基金
江苏省科技支撑计划项目(BE2012150)
江苏省高校自然科学基金资助项目(11KJB470004)
江苏高校优势学科建设工程项目
