Abstract
This study proposes a tribo-dynamic model of a spur gear by coupling an elastic dynamic model and an isothermal elastohydrodynamic lubrication (EHL) model. In this model, the gear shafts are modelled as flexible bodies by the resultant elements of Timoshenko beam and bar elements, and the gyroscopic effect of gear rotors and shafts is also included. The transient and non-Newtonian effects are considered in the EHL model to predict tooth friction forces and moments. Then, an example is provided to analyze the interaction between gear tribology and dynamic behavior. Results indicate that the fluctuations of mesh force and surface tangential velocity caused by gear vibration considerably affect the pressure and thickness of the lubricant film. The gyroscopic effect exerts a significant influence on the dynamic and tribology properties of the gear drive at high speed. The proposed model has important guidance for the design of lubrication systems and dynamic properties in gear drives.
Zusammenfassung
Durch Integration von elastischen dynamischen Modellen und isothermen elastohydrodynamischen Schmiermodellen (EHL), habe ich ein Reibungsdynamikmodell eines Stirnradgetriebes gebaut. In diesem Modell habe ich die Kombination von Timoshenko und Halm verwendet, um die Getriebewelle als flexibles Objekt zu modellieren. Ich habe auch den Kreiseleffekt des Zahnradrotors und der Welle betrachtet. Im EHL-Modell habe ich die momentanen und nicht-Newtonschen Effekte berücksichtigt, um die Reibung und das Drehmoment des Zahnrads vorherzusagen. Anschließend analysierte ich anhand eines Beispiels die gegenseitige Wirkung zwischen Getriebetribologie und Dynamik. Die Ergebnisse zeigen, dass die Eingriffskraft der Zahnradschwingung und die Schwankung der Tangentialgeschwindigkeit der Oberfläche einen großen Einfluss auf den Druck und die Dicke des Schmierölfilms haben. Darüber hinaus hat der Kreiseleffekt einen wichtigen Einfluss auf die dynamische Eigenschaften des Hochgeschwindigkeitsgetriebes und tribologische Leistung. Dieses Modell hat wichtige leitende Bedeutung für Design des Getriebeschmiersystems und Analyse dynamischer Eigenschaften.
Similar content being viewed by others
References
Li S, Kahraman A (2013) A tribo-dynamic model of a spur gear pair. J Sound Vib 332:4963–4978
Chen S, Tang J, Li Y, Hu Z (2016) Rotordynamics analysis of a double-helical gear transmission system. Meccanica 51:251–268
Nevzat Özgüven H, Houser DR (1988) Mathematical models used in gear dynamics—A review. J Sound Vib 121:383–411
Wang J, Li R, Peng X (2003) Survey of nonlinear vibration of gear transmission systems. Appl Mech Rev 56:222–227
Gregory RW, Harris SL, Munro RG (1963) Dynamic behaviour of spur gears. Proc Inst Mech Eng 178:207–218
Özgüven HN, Houser DR (1988) Dynamic analysis of high speed gears by using loaded static transmission error. J Sound Vib 125:71–83
Kahraman A, Singh R (1990) Non-linear dynamics of a spur gear pair. J Sound Vib 142:49–75
Blankenship GW, Kahraman A (1995) Steady state forced response of a mechanical oscillator with combined parametric excitation and clearance type non-linearity. J Sound Vib 185:743–765
Kahraman A, Blankenship GW (1997) Experiments on Nonlinear Dynamic Behavior of an Oscillator With Clearance and Periodically Time-Varying Parameters. J Appl Mech 64:217–226
Theodossiades S, Natsiavas S (2000) Non-linear dynamics of gear-pair systems with periodic stiffness and backlash. J Sound Vib 229:287–310
Vaishya M, Singh R (2001) Sliding friction-induced non-linearity and parametric effects in gear dynamics. J Sound Vib 248:671–694
Vaishya M, Singh R (2001) Analysis of periodically varying gear mesh systems with coulomb friction using floquet theory. J Sound Vib 243:525–545
He S, Gunda R, Singh R (2007) Effect of sliding friction on the dynamics of spur gear pair with realistic time-varying stiffness. J Sound Vib 301:927–949
Siyu C, Jinyuan T, Caiwang L, Qibo W (2011) Nonlinear dynamic characteristics of geared rotor bearing systems with dynamic backlash and friction. Mech Mach Theory 46:466–478
Li S (2015) A thermal tribo-dynamic mechanical power loss model for spur gear Pairs. Tribol Int 88:170–178
Li S, Anisetti A (2016) On the flash temperature of gear contacts under the tribo-dynamic condition. Tribol Int 97:6–13
Li S, Anisetti A (2017) A tribo-dynamic contact fatigue model for spur gear pairs. Int J Fatigue 98:81–91
Li S, Anisetti A (2017) The Effect of Spur Gear Tribo-Dynamic Response on Pitting Crack. Nucleation. https://doi.org/10.1115/DETC2017-67003
Ouyang T, Huang H, Zhang N, Mo C, Chen N (2017) A model to predict tribo-dynamic performance of a spur gear pair. Tribol Int 116:449–459
Ouyang T, Huang H, Zhou X, Pan M, Chen N, Lv D (2018) A finite line contact tribo-dynamic model of a spur gear pair. Tribol Int 119:753–765
Kahraman A, Ozguven HN, Houser DR, Zakrajsek JJ (1992) Dynamic Analysis of Geared Rotors by Finite Elements. J Mech Design 114:507–514
Hu Z, Tang J, Zhong J, Chen S, Yan H (2016) Effects of tooth profile modification on dynamic responses of a high speed gear-rotor-bearing system. Mech Syst Signal Process 76–77:294–318
Wei J, Zhang A, Wang G, Qin D, Lim TC, Wang Y, Lin T (2018) A study of nonlinear excitation modeling of helical gears with Modification: Theoretical analysis and experiments. Mech Mach Theory 128:314–335
Sheng X, Li B, Wu Z, Li H (2014) Calculation of ball bearing speed-varying stiffness. Mech Mach Theory 81:166–180
Yang P, Wen S (1990) A Generalized Reynolds Equation for Non-Newtonian Thermal Elastohydrodynamic Lubrication. J Tribol 112:631–636
Li S (2011) A spur gear mesh interface damping model based on elastohydrodynamic contact behavior. Int J Powertrains 1:4–21
Funding
This study was funded by the National Natural Science Foundation of China (NSFC) through Grant No. 51675168, the Natural Science Foundation of Hunan Province 2019JJ40020 and Open Research Fund of State Key Laboratory of High Performance Complex Manufacturing, Central South University Kfkt2017-10.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Hu, B., Zheng, M. & Zhou, C. Tribo-dynamics model of a spur gear pair with gyroscopic effect and flexible shaft. Forsch Ingenieurwes 83, 367–377 (2019). https://doi.org/10.1007/s10010-019-00371-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10010-019-00371-4