Vibrodiagnostics of Compressor Valves via Music Pseudo-spectra
نویسنده
چکیده
The paper presents a mathematical model of a piston compressor which is part of nitrogen-oxygen gas generator. Taking into account the structural parameters of the compressor, as well as the suction and pressurization valves, such model allows to obtain the dynamics of the pressure amplitude under the compressor’s piston together with the vibration velocity and vibration acceleration that are transmitted in the form of mechanical affections to the equipment (such mechanical affections can be observed using the corresponding sensors). Also we investigate the pseudo-spectra of vibration signals using the MUSIC algorithm for the set of parameters of compressor’s model (such parameters determine the evolution of a defect).
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