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2005, vol. 4, br. 1, str. 35-39
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Određivanje verovatnoće otkaza reduktora helikoptera
Determining of failure probabilities in rotorcraft gear boxes
Vojnotehnički institut - VTI, Beograd
Sažetak
Izložena je procedura za određivanje verovatnoće otkaza jednostepenog reduktora helikoptera. Procedura obuhvata tipične vidove oštećenja koja nastaju usled: savijanja korena zubaca, kontaktnog zamora zupčanika i ležajeva, korozije kućišta. Verovatnoće otkaza su prikazane za dva spektra opterećenja.
Abstract
This paper presents a procedure for determining of failure probabilities in a rotorcraft simple gear boxes. The procedure contains typical failure types due to: tooth root bending fatigue, rolling contact fatigue of the gear faces, rolling contact fatigue of the bearings, corrosion of the casing. The failure probabilities are presented for two torque spectrum.
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