Stiffness Analysis of Curvic Coupling in Tightening by Considering the Different Bolt Structures
Publication: Journal of Aerospace Engineering
Volume 29, Issue 3
Abstract
Curvic couplings are extensively used in aerospace machinery, such as helicopter, aero-engine, or other aircrafts. The aim of this paper is to reveal new insights into the behavior of bolted joint with curvic couplings according to the bolt geometry and physical parameters by an analytical model. The different cases are focused mainly on the different geometry characters of the bolt. The analytical results show that the compression stiffness of both the curvic and the ring part of the disc has some relationship with the curvic rotation. The curvic rotation angle and the curvic compression stiffness show a slight difference during the tightening regardless of the bolt structural parameters. However, the stiffness of the other disc parts present a more obvious difference in tightening because of the various bolt structural parameters.
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Acknowledgments
The authors would like to thank for the financial support of this work by the National Natural Science Foundation of China (NSFC) under Grant No. 51405371, the National High-tech R&D Program of China (863 Program) under Grant No. 2012AA040701, the National Basic Research Program of China (Grant No. 2011CB706601), and the National Science and Technology Major Project of China (No. 2012ZX04005-011).
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Published In
Journal of Aerospace Engineering
Volume 29 • Issue 3 • May 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Jul 3, 2013
Accepted: Feb 27, 2015
Published online: Nov 18, 2015
Discussion open until: Apr 18, 2016
Published in print: May 1, 2016
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