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三维曲线焊缝两种建模方法的比较 被引量：3

Comparison of two modeling method of 3D curve welding seam
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摘要 三维曲线焊缝建模是实现空间焊缝跟踪的关键问题之一。三维焊缝模型有利于减弱噪声干扰,提高系统的稳定性和鲁棒性,使得系统具有容错能力。采用三次参数曲线函数表示空间焊缝,使用最小二乘法建立焊缝的参数函数位置模型,接着使用三次B样条函数建立焊缝位置模型。使用位置模型和其它的特征点坐标之后得到了姿态模型中的方向矢量。分析了两种建模方法的性能,仿真试验证实在同类型和幅度的噪声干扰下,B样条函数模型优于参数曲线函数模型,能够很好地逼近原始三维曲线焊缝。 Three Dimension(3D) curve welding seam modeling is one of key technologies for seam tracking.The model can reduce the noise interference,improve the stability and robustness of welding system.Moreover,the system can obtain the fault tolerant ability from the model.The 3D curve welding seam was represented by using cubic parametric curve function,then the cubic parametric curve seam position model was obtained by using least square(LQ).Furthermore,the position model was also established by using cubic B spli...
作者 陈海永 徐德 王宏
机构地区 中国科学院自动化研究所 曼彻斯特大学电气与电子工程学院
出处 《焊接学报》 EI CAS CSCD 北大核心 2008年第6期41-44,115,共5页 Transactions of The China Welding Institution
基金 国家863高技术研究发展计划项目(2006AA04Z213) 国家自然科学基金重点资助项目(60534010)
关键词 三维焊缝模型 B样条函数 三次参数曲线函数 3D welding seam model B spline function cubic parametric curve function
分类号 TG441.3 [金属学及工艺—焊接]
  • 相关文献

参考文献12

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二级参考文献18

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共引文献22

同被引文献14

  • 1邹春华,张华,肖敏.CCD焊缝跟踪超前问题的解决方法[J].仪器仪表学报,2006,27(z3):2152-2154. 被引量：2
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  • 3方忆湘,刘文学.基于几何特性的三次均匀B样条曲线构造描述[J].工程图学学报,2006,27(2):96-102. 被引量：28
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  • 10王平江,吴家勇,陈吉红,李斌,彭芳瑜.激光焊接中狭窄对接拼缝测量方法[J].中国机械工程,2010,21(17):2132-2138. 被引量：5

引证文献3

二级引证文献6

焊接学报
2008年 第6期

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