基于逆向建模的复杂焊缝数学模型的建立方法  

Establishing Method of Mathematical Models for Complex Weld Based on Reverse Modeling

作　　者：李静 李君[2] 郝卫东[2] 

机构地区：[1]桂林电子科技大学信息科技学院机电工程系,广西桂林541004 [2]桂林电子科技大学机电工程学院,广西桂林541004

出　　处：《组合机床与自动化加工技术》2016年第6期43-46,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金项目(51506033)

摘　　要：目前在复杂焊缝的自动化焊接中焊缝数学模型建立方法均比较复杂,针对焊缝特征模型设计一种等分离散建模算法。采用辅助测量设备测量工件上设置的点,已知曲线上两点间坐标系的旋转矩阵,由Euler定理将旋转矩阵转换为指数映射形式,通过等分旋转角,建立曲线上两点间及其它离散点处的坐标系。在Matlab环境下,对管道插接焊缝进行了建模分析。仿真结果表明采用等分离散算法建立的焊缝特征模型能达到预期的效果,且方法简单、效率高。The method of mathematical model establishment is more complicated in the automatic welding of complex welding seam at present. An algorithm for discrete aliquot is proposed in this paper for complex weld. It measures points on the work piece using independent measuring device. The rotation matrix between coordinate system for two points on the curve is known,the rotation matrix converted to exponential mapping by Euler,coordinate other point is to be established by an method of the rotation angle for the aliquot.Intersecting pipes is established and analysis in Matlab. The results show that the algorithm using discrete aliquot weld build feature model can achieve expectation effect. This method makes the operation simpler,more efficient.

关 键 词：复杂焊缝模型 逆向建模 离散算法 相贯线 

分 类 号：TP337[自动化与计算机技术—计算机系统结构] TG506[自动化与计算机技术—计算机科学与技术]