AN ANALYSIS OF HEAT TRANSFER AND POWER LOSSES IN MECHANICAL GEARED TRANSMISSIONS

Alexandru ILIEȘ, Radu F. MIRICĂ, Sorin GABROVEANU, Sorin CANANAU, Andreea C. TOTU

Abstract


This paper presents an analysis of heat transfer capability and power losses in involute gear mechanical transmis-sions using, for experimental testing, electrical resistances to heat oil in the lubrication bath. The main goal was to establish a precise correlation between the thermal power released in the transmission case and the temperature dif-ference between the oil in the bath and the ambient environment. The results indicate a very good correlation be-tween the two sets of results, numerical and experimental, thus showing that the calculation model generates credible results and match the experimental ones.

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References


Michaelis K., Hohn B., Hinterstoiser M., Influence factors on gearbox power loss, Ind. Lubr. Tribol. 2011, 63(1), pp. 46–55

Hohn B. R., Michaelis, K., Hinterstoser M., Optimization of gearbox efficiency, Goriva i Maziva, 2009, 49(4), pp. 462-480.

Velex P, Ville F., Analytical approach to tooth friction losses in spur and helical gears-influence of profile modifications, Journal of Mechanical Design, ASME Transactions, 2009.

Nutakor C., Klodowski A., Mikkola A., Sopanen J., Simulation Model of Power Losses for Sun and Planet Gear Pair Used in a Wind Turbine Gearbox, The 14th IFToMM World Congress, Taiwan, 25-30 October, 2015.

Marques P.M.T., Fernandes C., Martins R.C., Seabra J., Power losses at low speed in a gearbox lubricated with wind turbine gear oils with special focus on churning losses, Tribology International, 2013, 62, pp. 186-197

Changenet C., Velex P., A Model for the Prediction of Churning Losses in Geared Transmissions—Preliminary Results, J. Mechanical. Design, Jan 2007, https://doi.org/10.1115/1.2403727

Janakiraman V., Kahraman A. and Talbot D., Modelling of steady-state mechanical power losses in planetary gear trains of automatic transmissions, Bulletin of the JSME Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.11, No.6, 2017.

Teamah A.M., Hamed M.S., Numerical in-vestigation of thermal losses within an internal gear train submerged in a mul-tiphase flow and enclosed in a rotating casing, International Journal of Ther-mofluids Volume 15, August2022, https://doi.org/10.1016/j.ijft.2022.100188

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