Effect of stator height change on bearing life in aircraft autopilot servos

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dc.authorid0000-0002-6380-2575
dc.contributor.authorOrtamevzi, Gurkan
dc.contributor.authorSahin, Yalcin
dc.date.accessioned2026-01-24T12:29:00Z
dc.date.available2026-01-24T12:29:00Z
dc.date.issued2022
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractPurpose The purpose of this paper is to make a more precise prediction of the life of servo motors used in aircraft. The variation of the axial load created by the wave washer for bearing, which is one of the factors affecting the bearing life of the electric motors and servo motors used in aircraft, was analyzed. Design/methodology/approach In electric motors and servo motors that body as stator, the height of the stator stack affects the compression amount of the wave washer spring. Working with electric motor and servo manufacturers, production-related variations in stator height were determined by making multiple measurements. The reaction forces resulting from these compression amounts were simulated by mathematical modeling with the finite element method, and also experimentally measured on real parts. Findings Results obtained with finite element method and real experiments were compared. By adding the force differences to the general operating conditions, the effect on the bearing life was theoretically determined. In a servo motor with this type of construction, the difference in stator height created different axial loads on the motor shaft. The difference of these loads affected the motor bearing life. Research limitations/implications The results implicated in terms of flight safety, maintenance operation and resource efficiency. Practical implications The results of this study are effective in determining the maintenance intervals more clearly. This study can be used for the design criteria of aircraft servo motors. These servos, which are especially used to move the flight control surfaces, contribute to flight safety as the life expectancy will be clearer. Social implications This study may be effective in preventing aviation accidents caused by servo motors. It can make maintenance management more efficient. Originality/value This study investigated the effect of aircraft servo motor design inputs on servo motor life, considering the production.
dc.identifier.doi10.1108/AEAT-08-2021-0257
dc.identifier.endpage1133
dc.identifier.issn1748-8842
dc.identifier.issn1758-4213
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85125909431
dc.identifier.scopusqualityQ2
dc.identifier.startpage1128
dc.identifier.urihttps://doi.org/10.1108/AEAT-08-2021-0257
dc.identifier.urihttps://hdl.handle.net/20.500.12868/5057
dc.identifier.volume94
dc.identifier.wosWOS:000765101100001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherEmerald Group Publishing Ltd
dc.relation.ispartofAircraft Engineering and Aerospace Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260121
dc.subjectFinite element method
dc.subjectCapability analysis
dc.subjectAutopilot servos
dc.subjectBearing life
dc.titleEffect of stator height change on bearing life in aircraft autopilot servos
dc.typeArticle

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