Jezik: | Slovenski jezik |
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Leto izida: | 2021 |
Tipologija: | 2.09 - Magistrsko delo |
Organizacija: | UL FS - Fakulteta za strojništvo |
Založnik: | [G. Čemažar] |
UDK: | 621.822:621.63:534(043.2) |
COBISS: | 91595011 |
Št. ogledov: | 151 |
Št. prenosov: | 41 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
Sekundarni jezik: | Angleški jezik |
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Sekundarni naslov: | Fault identification of electronically commutated blowers based measurement of sound pressure and acceleration |
Sekundarni povzetek: | This work presents the most common errors in the production of electronically commutated blowers. Elementary sources of noise and vibration are described as a more complex source of a blower’s noise. The main focus is on mechanical sources of noise and their identification as a consecuence of structural vibrations of the bearings. To identify bearing error, Hilbert transform of sound pressure and acceleration signal is used, which results in an envelope of a signal. The principle of envelope analysis is first verified by a synthetic experiment of simulated bearing failure. By envelope analysis, we successfully identified typical frequencies of damaged bearings based on both accelerations and sound pressure. |
Sekundarne ključne besede: | master thesis;bearings;EC blower;vibrations;sound pressure;envelope analysis;Hilbert transform; |
Vrsta dela (COBISS): | Magistrsko delo/naloga |
Študijski program: | 0 |
Konec prepovedi (OpenAIRE): | 1970-01-01 |
Komentar na gradivo: | Univ. Ljubljana, Fak. za strojništvo |
Strani: | XXVI, 70 str. |
ID: | 14167746 |