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 64
- Downloads 0
MODELLING AND ANALYSIS OF ROTATING SYSTEMS WITH GAS FOIL BEARINGS UNDER TRANSIENT OPERATING CONDITIONS
Gas foil bearings are on the cutting edge of bearing systems that spread worldwide. Although it is a common practice to apply such systems to high-speed fluid-flow machinery, their modelling and analysis still pose a num...
ANALIZA WPŁYWU WYBRANYCH PARAMETRÓW KÓŁ ZĘBATYCH NA WARTOŚĆ POŚLIZGU MIĘDZYZĘBNEGO I NAPRĘŻEŃ KONTAKTOWYCH W PRZEKŁADNI ZĘBATEJ WALCOWEJ
W pracy przedstawiono zagadnienia dotyczące obliczeń geometrycznych i wytrzymałościowych przekładni zębatych power shift, z optymalizacją wielokryterialną, przy stosowaniu autorskiego programu komputerowego. Wśród wielu...
THE INFLUENCE OF LOADS AND ROTATIONAL SPEEDS ON BAINITIC RAIL STEEL IN WEAR IN SLIDING PAIRS ON AN AMSLER STAND
The developing world industry causes an increase in transport and train speeds. In this way, the rolling-sliding contact surface of rails subject to load lead to effort placed on material. The result of effort is increas...
FATIGUE STRENGTH IMPROVEMENT OF STEEL ROLLERS IN CONVEYOR BELTS WHEN USING SHOT PEENING
Numerous factors influence the tribological wear of steel rollers used in conveyor belts. The difficulty in precise determination of these factors results from, among others, a complex and not completely explored wear me...
IDENTIFICATION OF TRIBOLOGICAL PARAMETERS CHARACTERIZING COOPERATION ROTARY SEAL WITH THE SURFACE OF THE SHAFT
This article presents a proposal for a description of tribological phenomena occurring during the cooperation of a rotary seal on the surface of a shaft, which has not been well recognized. The method of dimensional anal...