Condition monitoring based on locating defects via strain gauge analysis. (1st January 2023)

• Record Type: Journal Article
• Authors: Valeev, Anvar
• Is Part Of: Mechanical systems and signal processing. Volume 182(2023)
• Publication Date: 2023-01-01
• Subjects: Condition monitoring -- Diagnostics -- Defect locating -- Strain gauge analysis; Structural dynamics -- Periodicals; Vibration -- Periodicals; Constructions -- Dynamique -- Périodiques; Vibration -- Périodiques; Structural dynamics; Vibration; Periodicals; 621
• DOI: 10.1016/j.ymssp.2022.109587
• Languages: English
• ISSNs: 0888-3270

Abstract

Highlights: A new method of condition monitoring based on locating defects via strain gauge analysis is suggested. Strain gauge analysis in real-time is used as original information for control. Exact location of defect (excitation sources) is defined. Mathematical model for calculating exact location of defect via measurements of dynamics forces is developed. Experimental study of the developed method is provided. Abstract: This paper is devoted to a new approach for condition monitoring. The main feature is an application of strain gauge analysis for geometrical locating defects. Information about exact location of a defect, intensity of excitation and its frequency provides accurate diagnostics. In this paper a mathematical model is developed, that allow to calculate location of excitation sources using real-time data about dynamic forces in supports of a machine. An electronic board and computer program for implementation the proposed method are developed. The electronics measure strain gauge data in real time and transmit it to a computer program. Then coordinates, frequency and intensity of excitation sources are calculated. Also a 3D plot of source location is available. Such an approach gives new information for diagnostic and provides new opportunities for effective defect detecting and condition monitoring of various machines and equipment.