IDENTIFICATION OF FATIGUE DAMAGE OF METAL SHEETS MADE OF MATERIAL DD11 FROM AN ANALYSIS OF VIBRATION SIGNALS
Journal Title: Tribologia - Year 2017, Vol 276, Issue 6
Abstract
This paper presents a method of identifying fatigue cracking of specimens made of material DD11 based on selected characteristics of the vibration signal. Acceleration of vibrations of the free end of a specimen was taken for an analysis of specimen properties during the process of fatigue cracking. Features which enable identification and monitoring of the process of specimen cross-section cracking were indicated for the diagnostic signal. The study was conducted on an original test stand in which the process of the destruction of material cross-section is caused by a specimen’s inertia force. The study results indicated that the presented method of identification of a specimen structure change can be applied to identify the technical condition of a structure in regard to a loss of continuity and structure properties (e.g., mechanical and fatigue cracking). The results of vibration analysis were verified by penetration methods and by microscopic observation.
Authors and Affiliations
Arkadiusz RYCHLIK, Krzysztof LIGIER, Władysław KOZUBEL
Keywords
Related Articles
- EP ID EP254817
- DOI 10.5604/01.3001.0010.8065
- Views 57
- Downloads 0
THE RESISTANCE OXIDATION OF THE COMPOSITE OILS AFTER TRIBOLOGICAL TEST
The experimentally determined oxidation stability of the compositions based on vegetable oils are presented. Analysed oxidation onset temperature was obtained from the Different Scanning Calorimetry (DSC) curves, which p...
Wpływ rodzaju napełniacza w smarze plastycznym na efektywność smarowania w stalowych skojarzeniach ślizgowych
Model diatermiczny łożyska porowatego z dodatkowym zasilaniem olejem
Przedstawiona w pracy analiza dotyczy modelu diatermicznego łożyska porowatego pracującego w warunkach dodatkowego zasilania olejem. Podane zostały równania ruchu i energii dla szczeliny smarnej i tulei porowatej uzupełn...
TRIBOLOGICAL PROPERTIES OF FRICTIONAL MATERIAL APPLIED ON BRAKES
In paper tribological properties (average and instantaneous coefficient of friction, wear and temperature) for frictional connection created from frictional material MKW-50A and cast iron EN-GJN-HV600(XCr14) are presente...
THE REASONS FOR DIFFERENCES IN WEAR VOLUME IN POLYESTER OILS AND POLYESTER OILS/REFRIGERANT MIXTURES
Friction pairs of refrigeration compressors are always lubricated by an oil/refrigerant mixture. This paper presents the results of wear amounts after tribological tests of different polyester oils from the same viscosit...