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Sensitive parameter and its influence law on load sharing performance of cylindrical gear split torque transmission system

Sensitive parameter and its influence law on load sharing performance of cylindrical gear split torque transmission system
Sensitive parameter and its influence law on load sharing performance of cylindrical gear split torque transmission system
The split-path transmission, particularly attractive alternatives to the traditional epicyclic gear transmission of the helicopter, provides two parallel pathways for transmitting torque from the engine to the rotor. The key technical index of the split path designis to equalize the torque in each path as much as possible. Therefore, it is necessary to study the sensitive design parametersaffecting load sharing characteristics. In order to obtain the utmost sensitive parameters and the change law of the effects, a coupled dynamic analysis model considering the time-varying meshing stiffness, mesh errors and mesh damping, is established for the split torque transmission system. Taking support stiffness and torsional stiffness as variables, the sensitivities of load sharing coefficient to these parameters are calculated and analyzed based on sensitive analysis, and the distribution law of the sensitivities of load sharing coefficient is obtained. Results show that load sharing coefficient has a higher sensitivity to the torsional stiffness and the support stiffness of duplicated gear shafts, but lower to input shafts and output shaft. Furthermore, reducing torsional stiffness or increasing two lateral support stiffness of duplicated gear shaft will yield the same results and are contributive to the improvement of load sharing.
Split torque, Dynamic response, Load sharing, Sensitivity, Coupling system
2321-3558
583-595
Jin, G.H.
71a612f4-09c0-40a4-80d4-6616f1fc8610
Xiong, Y.P.
51be8714-186e-4d2f-8e03-f44c428a4a49
Gui, Y.F.
e040e6ea-2f12-4ab4-bde1-b19344f5e124
Zhu, R.P.
cab2bd69-3e29-4459-a1ed-e8c5e5876d36
Jin, G.H.
71a612f4-09c0-40a4-80d4-6616f1fc8610
Xiong, Y.P.
51be8714-186e-4d2f-8e03-f44c428a4a49
Gui, Y.F.
e040e6ea-2f12-4ab4-bde1-b19344f5e124
Zhu, R.P.
cab2bd69-3e29-4459-a1ed-e8c5e5876d36

Jin, G.H., Xiong, Y.P., Gui, Y.F. and Zhu, R.P. (2017) Sensitive parameter and its influence law on load sharing performance of cylindrical gear split torque transmission system. Journal of Vibration Engineering & Technologies, 5 (6), 583-595.

Record type: Article

Abstract

The split-path transmission, particularly attractive alternatives to the traditional epicyclic gear transmission of the helicopter, provides two parallel pathways for transmitting torque from the engine to the rotor. The key technical index of the split path designis to equalize the torque in each path as much as possible. Therefore, it is necessary to study the sensitive design parametersaffecting load sharing characteristics. In order to obtain the utmost sensitive parameters and the change law of the effects, a coupled dynamic analysis model considering the time-varying meshing stiffness, mesh errors and mesh damping, is established for the split torque transmission system. Taking support stiffness and torsional stiffness as variables, the sensitivities of load sharing coefficient to these parameters are calculated and analyzed based on sensitive analysis, and the distribution law of the sensitivities of load sharing coefficient is obtained. Results show that load sharing coefficient has a higher sensitivity to the torsional stiffness and the support stiffness of duplicated gear shafts, but lower to input shafts and output shaft. Furthermore, reducing torsional stiffness or increasing two lateral support stiffness of duplicated gear shaft will yield the same results and are contributive to the improvement of load sharing.

Text
JVET- final manuscript-2017-08-21 Jin&Xiong - Accepted Manuscript
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More information

Accepted/In Press date: 21 August 2017
e-pub ahead of print date: 1 December 2017
Published date: December 2017
Keywords: Split torque, Dynamic response, Load sharing, Sensitivity, Coupling system

Identifiers

Local EPrints ID: 415272
URI: http://eprints.soton.ac.uk/id/eprint/415272
ISSN: 2321-3558
PURE UUID: 1df38ea3-05ef-4e75-8c91-18fc9167dafe
ORCID for Y.P. Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 06 Nov 2017 17:30
Last modified: 07 Oct 2020 05:04

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