Analysis on natural characteristics of four-stage main transmission system in three-engine helicopter

Chen, Yuan, Zhu, Ru-peng, Xiong, Yeping and Jin, Guang-hu (2017) Analysis on natural characteristics of four-stage main transmission system in three-engine helicopter. In Vibroengineering PROCEDIA. p. 19 . (doi:10.21595/vp.2017.18558).

Record type: Conference or Workshop Item (Paper)

Abstract

The vibration model of four-stage main transmission system in helicopter was established through lumped mass method. In the model, many factors, including time-varying meshing stiffness and torsional stiffness of gear shaft were considered. The differential equation of the system was solved via Fourier method, and the influence of the torsional stiffness of shafts on the first five orders of the system’s natural frequency was studied. Some theoretical results were summarized as guidelines for further research and design of four-stage deceleration helicopter at last.

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Accepted/In Press date: 29 April 2017

Published date: 29 June 2017

Venue - Dates: International Conference on VIBROENGINEERING: Theme: Nonlinear Dynamics and Chaos in Engineering Applications, Saint Petersburg Electrotechnical University, St. Petersburg, Russian Federation, 2017-06-29 - 2017-06-30

Keywords: helicopter transmission system, four-stage reducer, natural characteristics, torsional stiffness, nonlinear dynamics