Infrared thermography based diagnosis of the impact on the kinematic chain. (2019)

• Record Type: Journal Article
• Authors: Jeffali, F.; Ouariach, A.; El Kihel, A.; Nougaoui, A.
• Is Part Of: Materials today. Volume 13:Part 3(2019)
• Page Start: 949
• Page End: 955
• Publication Date: 2019
• Subjects: Thermography -- Induction Motor -- Kinematic Chain -- Condition monitoring -- diagnosis; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.04.059
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: In this paper, we describe an experimental device based on an infrared thermography technic, which allows observing thermal phenomena. The three-phase asynchronous motor ASM, used in this work, is mounted on a base plate with an alignment device. It has two poles, an operating frequency of 50 Hz, a useful power of 0, 55 kW and a frequency converter speed control system. A magnetic powder brake is used to control the load torque, applied to the asynchronous machine. The stator current and the machine voltages of the induction machine are measured through voltage and current probes; then recorded by an energy analyzer. The output indicators at the end of the chain are used to get the rotation speed, the torque, and the absorbed power. In this study, the preventive diagnosis calls for the application of a non-destructive and non-offensive technique at the level of the production lines and follow their operating state. This last is based on the analysis of the segmentation of thermal pictures, starting by isolating the significant regions, and determine the temperature of the important areas. The studied technique that not only locates the damage, but also follow-up of the influence of the damage on the other components of the device.