Selection of efficient monitoring methods for machinery generating high vibration signal disturbance

Source: Diagnostyka, Numer 4(56) / 2010, Pages 55-58
Authors: Tomasz Barszcz (EC Systems), Jacek Urbanek (EC Systems), Łukasz Szumilas (dawniej EC Systems)

Summary:

Monitoring and diagnostics systems of machinery are increasingly used in many industries. Generally, these systems are responsible for such a machinery like steam turbines, pumps, fans, etc. The increase in efficiency as well as the growing interest of diagnostics systems has expanded the potential markets to other related industries such as mining or metallurgy. This paper presents efficient monitoring methods of machinery generating high vibration signal disturbances. The results have been developed by a diagnostic team, monitoring a reciprocating compressor, which is located on the Baltic Sea oil rig. Important feature of the compressor is existence of strong impacts in the vibration signals. These impulses introduce strong distortion to the signal spectrum. The paper shows that different faults require specific diagnostic methods. The paper shows example of selection of such a method. It is the application of the enhanced resolution envelope analysis for detection of the bearing faults.

Keywords: high vibration signal disturbance, signal spectrum, faults detection analysis.

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