izpis_h1_title_alt

Application of psychoacoustic filtering for machine fault detection
Potočnik, Primož (Avtor), Govekar, Edvard (Avtor), Grabec, Igor (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1504/IJMPT.2006.011273 Povezava se odpre v novem oknu

Izvleček
A method for nondestructive machine fault detection based on the evaluation of acoustic machine signatures is proposed. Various mechanical defects of rotary machines can be reflected in altered acoustic signatures. The proposed method is based on the psychoacoustic modelling of human auditory perception. For the purpose of machine fault detection, the gammatone filterbank is applied in the preprocessing of acoustic signals. Filtered signals are then rectified and features are calculated as mean values of rectified signals. A set of features represents an extracted machine signature. The machine states are evaluated by comparing the extracted signature with the database of previously collected machine signatures. The proposed approach is illustrated by a case study where the quality of commercially produced compressors is estimated. Results show that major faults that occur in a production can be reliably detected.

Jezik:Angleški jezik
Ključne besede:akustika, akustični signali, odkrivanje napak, neporušno preskušanje, mehanske napake, rotacijski stroji, case študije, acoustic signals, machine fault detection, psychoacoustic filtering, non-destructive testing, NDT, mechanical defects, defect detection, rotary machines, machine signatures
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2006
Št. strani:str. 229-237
Številčenje:Letn. 27, št. 3/4
UDK:620.179
ISSN pri članku:0268-1900
COBISS.SI-ID:9744923 Povezava se odpre v novem oknu
Število ogledov:722
Število prenosov:256
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je del revije

Naslov:International journal of materials & product technology
Skrajšan naslov:Int. j. mater. prod. technol.
Založnik:Inderscience Enterprises
ISSN:0268-1900
COBISS.SI-ID:512563481 Povezava se odpre v novem oknu

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