Open AccessSelected Methods for Locking Screw Joints, Including the Use of Adhesives, Used in the Helicopter Construction
Author(s) -
Anna Rudawská,
Sławomir Cisz,
Tomasz Warda
Publication year - 2014
Publication title -
technologické inžinierstvo/technological engineering
Language(s) - English
Resource type - Journals
eISSN - 2451-3156
pISSN - 1336-5967
DOI - 10.2478/teen-2014-0016
Subject(s) - nut , punching , structural engineering , adhesive , torque , materials science , mechanical engineering , fastener , engineering , orthodontics , composite material , medicine , physics , layer (electronics) , thermodynamics
The paper presents the problems of preventing screw joints from self-loosening on one of helicopter. The research examines selected locking methods used in aircraft produced by different manufacturers. Experimental tests were performed to investigate the loosening torque of screw joints locked by various devices: cotter pin, locknut, centre punching, self-locking nut and adhesive. A comparative analysis of the investigated locking methods is made with respect to their locking strength and efficiency.