Mechanics of Solids (about journal) Mechanics of Solids
A Journal of Russian Academy of Sciences
 Founded
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IssuesArchive of Issues2019-3pp.435-439

Archive of Issues

Total articles in the database: 9179
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A.L. Berne, M.K. Leont'ev, F.R. Nizametdinov, and Yu.S. Romashin, "Investigation of Bending Stiffness for Flange Joint of GTE Rotor," Mech. Solids. 54 (3), 435-439 (2019)
Year 2019 Volume 54 Number 3 Pages 435-439
DOI 10.3103/S0025654419020079
Title Investigation of Bending Stiffness for Flange Joint of GTE Rotor
Author(s) A.L. Berne (Engineering & Consulting Centre for Dynamic Problems in Rotating Machinery "Alfa-Transit," Co. Ltd, ul. Leningradskaya 1, Khimky, Moscow Region, 141400 Russia)
M.K. Leont'ev (Moscow Aviation Institute (National Research University), Volokolamskoe sh. 4, Moscow, 125993 Russia)
F.R. Nizametdinov (Bauman Moscow State Technical University, ul. 2-ya Baumanskaya 5 str. 1, Moscow, 105005 Russia, frnizametdinov@list.ru)
Yu.S. Romashin (Engineering & Consulting Centre for Dynamic Problems in Rotating Machinery "Alfa-Transit," Co. Ltd, ul. Leningradskaya 1, Khimky, Moscow Region, 141400 Russia)
Abstract The article deals with the modeling the stiffness properties of flange rotor joints, which significantly determine their overall dynamics. Investigation is conducted on the example of flange joint of the compressor shaft and turbine disk in the GTE gas generator. It is noted that the moment stiffness of the flange joint is a nonlinear function of bending moment, the magnitude of which is associated with the rotor deflection due to action of unbalanced forces. It is shown that the value of moment stiffness substantially depends on bolt tightening force, axial force, tensile connection, and contact deformations of the flange surfaces. An analysis of the influence of moment stiffness values obtained for different models of flange connection on the general dynamics of the rotor has showed the necessity to take into account the whole set of factors acting at a place of joint.
Keywords flange joint, moment stiffness, tightening force, critical frequencies, contact compliance
Received 27 December 2017
Link to Fulltext https://link.springer.com/article/10.3103/S0025654419020079
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