Varga, M., Haas, M., Adam, K., & Schneidhofer, C. (2020). Wear intensity evaluation in conveying systems - An acoustic emission and vibration measurement approach. Tribology International, 149(105549), 105549. https://doi.org/10.1016/j.triboint.2019.01.008
E134-01 - Forschungsbereich Applied and Computational Physics
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Journal:
Tribology International
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ISSN:
0301-679X
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Date (published):
2020
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Number of Pages:
8
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Peer reviewed:
Yes
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Keywords:
Mechanical Engineering; Mechanics of Materials; Surfaces, Coatings and Films; Surfaces and Interfaces; Acoustic emission Impact wear Wear measurement Lifetime prediction
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Abstract:
Conveying raw materials is essential in heavy industries and mostly accompanied by wear. Impinging of ma- terials cause energy transfer, generating elastic waves. In this work, an acoustic emission (AE) measurement system and an accelerometer for vibrations were utilised to assess different wear phenomena. A 3-fold approach was undertaken: i) identification of characteristic acoustic damage features in a model impact-test; ii) impact tests with raw materials on wear plates in lab-scale; iii) field test of the measurement systems in the harsh environment of a steel plant. Results showed clear frequency changes with decreasing plate thickness. Micro-cracking was indicated by high frequencies, showing the first stage of wear. AE and vibration measurements distinguished raw materials clearly in both, close-to-reality and field testing.