Volodymyr Malashchenko1, Oleh Strilets2, Volodymyr Strilets2
1Lviv Polytechnic National University, Lviv, Ukraine
2National University of Water and Environmental Engineering, Rivne, Ukraine
JUSTIFICATION OF EFFICIENCY OF EPICYCLICAL GEAR TRAIN
IN DEVICE FOR SPEED CHANGES MANAGEMENT
Received: February 9, 2017 / Revised: March 22, 2017 / Accepted: June 26, 2017
© Malashchenko V., Strilets O., Strilets V., 2017
Abstract. The article analyses the functioning of epicyclical gear train with closed circuit hydrosystem, where the driving element is the sun gear and driven one is the carrier or vice versa. Control element is the ring gear, which rotates or can be stopped by the closed circuit hydrosystem.
We have conducted a theoretical research of efficiency in such epicyclical gear train. Using the means of computer modelling, we have obtained graphical dependences of the transmission efficiency from its parameters.
The analytical and graphical dependences have been obtained allow visually verifying the change of efficiency value and evaluating it in terms of self-braking.
Keywords: efficiency, epicyclical gear train, speed change management, closed circuit hydrosystem, sun gear, driven gear, ring gear, transmission.

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