Transactions on Machine Intelligence

Transactions on Machine Intelligence

The Impact of Fusion Welding in Corrosion Diagnosis of Joint Systems Using Ultrasonic Technique

Document Type : Original Article

Authors
M. Mostafapour
J. Abbaszadeh
S. Maroofzadeh
Electrical Engineer Department, Islamic Azad University, Urmia branch, Urmia, Iran
10.47176/TMI.2022.28
Abstract
Nowadays the ultrasonic guide wave technique is the most accurate method in defect detection. Defect detection in the joined and continues systems make some measurement problems due to the structure and propagation of ultrasonic waves in these systems that must be considered for obtained accurate results. In this paper we analysis the manner and the effect of welded points in joint systems. For this aim we specially considered the grounding grids as a joint system and study the problem of the ultrasonic waves in corrosion diagnosis of this system. The grounding grids are the most important systems that increasing safety of power equipment in substations. The conductors of grounding grids usually connected together by fusion welding or bolts and nuts. But fusion welding make some problems for corrosion diagnosis of grounding grids and also pipelines while using ultrasonic technique. The main problem is incorrect results that obtained due to the interference of ultrasonic waves. This paper presented a new method to eliminating the effect of fusion welding points by placing the ultrasonic transducers in right locations. The influence of the soil is considered. Computer simulation results have shown the effect of this interference in accuracy of the result and effectiveness of the new method.
Keywords
Grounding Grids
Ultrasonic Waves
Piezoelectric
Corrosion Diagnosis
Fusion Welding
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Transactions on Machine Intelligence
Volume 5, Issue 1
Winter 2022
Pages 28-36

  • Receive Date 25 December 2021
  • Revise Date 15 February 2022
  • Accept Date 13 March 2022