In gas metal arc welding,it is difficult to establish an accurate model of arc length nonlinear systems.Moreover,the system has various uncertainties and is vulnerable to the problem of internal and external disturbance.In this paper,an improved model-free adaptive control method was proposed to address the above issues.First of all,a dynamic linear generalized model with measurable and unmeasurable disturbances and uncertain factors was designed.A parameter estimation algorithm was used to estimate pseudo ...
【基金】
中央高校基本科研业务费专项资金资助(20826041A4133)
【更新日期】
2018-02-08
【分类号】
TP273
【正文快照】
熔化极气体保护焊(gas metal arc welding,GMAW),是一种用气体作为保护介质,利用送给连续的熔化极和工件间产生的电弧加热焊丝和母材金属使其熔化的焊接方法[1]。在GMAW过程中,焊接电弧的改变会引起工艺参数的改变,从而影响焊缝成型和焊接质量,甚至影响焊接过程的稳定性,因此保
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