29 خرداد 1403
عليرضا دودمان تيپي

علیرضا دودمان تیپی

مرتبه علمی: استادیار
نشانی: دانشگاه صنعتی کرمانشاه - دانشکده مهندسی برق - گروه مهندسی برق (گرایش های قدرت و کنترل)
تحصیلات: دکترای تخصصی / مهندسی برق کنترل
تلفن: 083-38305001
دانشکده: دانشکده مهندسی برق

مشخصات پژوهش

عنوان
The study on the drop detachment for automatic pipeline GMAW system: free flight mode
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
modelling- welding control- GMAW PROCESS- PROCESS CONTROL
پژوهشگران علیرضا دودمان تیپی (نفر اول)

چکیده

In the automatic pipeline welding systems, the mechanical properties and weld bead geometry are changed following to angle variation around the pipe. It occurred since during a weld pass, there are all of possible positions. In this work, first an augmented state-space model of process is presented that includes the travel motion and angle of robot. Also, gravitational force and arc voltage equations are modified. This model covers the free flight transfer modes (spray and globular). Then, accuracy of model is shown by model validation and comparing to real experiments. Finally, the angle effect on detachment is studied for all positions using simulation results. Detachment frequency variations, disturbance effects, and irregularity in detachments are analyzed using time–frequency representation.