Analysis of the sensitivity of the identification method of inability states of rotating systems to the conditions of the experiment

¹ University of Technology and Humanities in Radom, Faculty of Mechanical Engineering, Stasieckiego Street 54, 26-600 Radom, Poland
² University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lucica Street 5, 10002 Zagreb, Croatia
³ Polish Naval Academy, Mechanical Electrical Faculty, Smidowicza Street 69, 81-127 Gdynia, Poland

^* Corresponding author: m.pajak@uthrad.pl

Abstract

One of the most important subsystems of the vehicles and machines operating currently in industry and transportation are the rotating subsystems. Monitoring of its technical state is an important issue of the engineering and academic research. As a result of the research a lot of new diagnostic methods have been formulated but one of the most important characteristic of them is the ability to industrial implementation. It depends on the insensitivity to disturbance which can arise in real operational environment. In the paper the method formulated by the authors is analysed. This is the method of the identification of inability states of rotating subsystems based on the vibrations analyses in the time domain. It constitutes the system approach to the considered issue. There are three applications of the method described - research on simulation laboratory stand, research on a real technical object conducted in the laboratory and research carried out on a real technical object under the real operation conditions. In each case different accuracy of the ability and inability states identification is achieved. Analysing the differences in accuracy of the method applications the conclusion of its sensitivity to the conditions of the experiment were formulated which are presented in the end of the paper.