Dynamic nonlinear modeling of 3D weld pool surface in GTAW

被引：11
|
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] Neuro-fuzzy Modeling of Human Welder's Response to 3D Weld Pool Surface in GTAW
    Liu, YuKang
    Zhang, Weijie
    Zhang, YuMing
    2012 IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS (ISIE), 2012, : 875 - 880
  • [3] 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
  • [4] An LSTM-based measurement method of 3D weld pool surface in GTAW
    Li, Lidong
    Cheng, Fangjie
    Wu, Shaojie
    MEASUREMENT, 2021, 171
  • [5] 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
  • [6] 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
  • [7] Control of 3D weld pool surface
    Liu, YuKang
    Zhang, YuMing
    CONTROL ENGINEERING PRACTICE, 2013, 21 (11) : 1469 - 1480
  • [8] Analysis and modeling of GTAW weld pool geometry
    Wang, X. (wangxuew@ecust.edu.cn), 1600, Springer Verlag (355):
  • [9] A mobile sensing system for real-time 3D weld pool surface measurement in manual GTAW
    Zhang, Wei Jie
    Xiao, Jun
    Zhang, Yu Ming
    MEASUREMENT SCIENCE AND TECHNOLOGY, 2016, 27 (04)
  • [10] Analysis and Modeling of GTAW Weld Pool Geometry
    Wang, XueWu
    INTELLIGENT COMPUTING FOR SUSTAINABLE ENERGY AND ENVIRONMENT, 2013, 355 : 284 - 293
12345