Dynamic nonlinear modeling of 3D weld pool surface in GTAW

被引：12
|
作者：
Jin Zeshi [1 ]
Li Haichao [1 ]
Jia Guoqing [1 ]
Gao Hongming [1 ]
机构：
[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
来源：
ROBOTICS AND COMPUTER-INTEGRATED MANUFACTURING | 2016年 / 39卷
关键词：
GTAW; Weld pool surface; 3D; Hammerstein model; Dynamic nonlinear modeling; GAS TUNGSTEN; PENETRATION CONTROL; PREDICTIVE CONTROL; SYSTEM;
D O I：
10.1016/j.rcim.2015.11.004
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
As the weld pool contains abundant information about the welding process, the skilled welder always utilizes the observed information to control the weld pool to get a good weld quality. In this paper, a real-time vision sensing technology is used as the eyes of the welder to observe the gas tungsten arc welding (GTAW) pool surface and a 3D reconstruction technology is used to reconstruct the observed weld pool surface in three-dimensions. The geometric parameters are obtained from the reconstructed pool surface. Step responses are conducted to acquire the relationship between the weld pool geometric parameters and the random variation of current, and the time-domain analysis of the system is done. Various random experiments are also conducted and the dynamic relationship of the weld current and the weld pool geometric parameters is established by means of a non-linear Hammerstein model. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1 / 8
页数：8
相关论文
共 50 条
  • [1] Nonlinear Modeling for 3D Weld Pool Characteristic Parameters in GTAW
    Liu, Y. K.
    Zhang, W. J.
    Zhang, Y. M.
    WELDING JOURNAL, 2015, 94 (07) : 231 - 240
  • [2] Weld Pool Surface Model Establishment for GTAW Based on 3D Reconstruction Technology
    Wang, XueWu
    PROCEEDINGS OF 2013 CHINESE INTELLIGENT AUTOMATION CONFERENCE: INTELLIGENT AUTOMATION & INTELLIGENT TECHNOLOGY AND SYSTEMS, 2013, 255 : 741 - 748
  • [3] Control of 3D weld pool surface
    Liu, YuKang
    Zhang, YuMing
    CONTROL ENGINEERING PRACTICE, 2013, 21 (11) : 1469 - 1480
  • [4] Dynamic Reflection Behaviors of Weld Pool Surface in Pulsed GTAW
    Chen, J. S.
    Chen, J.
    Zhang, K.
    Feng, Z.
    Zhang, Y. M.
    WELDING JOURNAL, 2018, 97 (06) : 191S - 206S
  • [5] Study on Dynamic Development of Three-dimensional Weld Pool Surface in Stationary GTAW
    Huang, Jiankang
    He, Jing
    He, Xiaoying
    Shi, Yu
    Fan, Ding
    HIGH TEMPERATURE MATERIALS AND PROCESSES, 2018, 37 (05) : 455 - 462
  • [6] Simulation and optimization of reflection characteristics of 3D weld pool surface laser dots for GTAW
    Li C.
    Shi Y.
    Gu Y.
    Zhang G.
    Zhu M.
    Du L.
    Shi, Yu (shiyu@lut.cn), 1600, Harbin Research Institute of Welding (38): : 42 - 46
  • [7] Analysis and modeling of GTAW weld pool geometry
    Wang, X. (wangxuew@ecust.edu.cn), 1600, Springer Verlag (355): : 284 - 293
  • [8] Analysis and Modeling of GTAW Weld Pool Geometry
    Wang, XueWu
    INTELLIGENT COMPUTING FOR SUSTAINABLE ENERGY AND ENVIRONMENT, 2013, 355 : 284 - 293
  • [9] Effect of electric parameters on weld pool dynamic behavior in GTAW
    Zhang, Gang
    Shi, Yu
    Zhu, Ming
    Fan, Ding
    JOURNAL OF MANUFACTURING PROCESSES, 2022, 77 : 369 - 379
  • [10] Controlling 3D Weld Pool Surface by Adjusting Welding Speed
    Liu, Y. K.
    Zhang, Y. M.
    WELDING JOURNAL, 2015, 94 (04) : 125S - 134S
12345