Abstract
The paper focuses on the study of the power flow in the planetary gearbox of a tracked vehicle and presents an algorithm that analyzes and determines the distribution of moments, angular velocities and power factors. The planetary gearbox used for the analysis operates in a transitory movement system and is part of a transmission from a Romanian main battle tank production. The analysis itself is elaborated for the second level of the planetary gearbox. The way of analysis is based on the network pattern where the planetary gearbox is seen as an energetical network that converts and sends the power flow to the driving mechanism of the tracked vehicle. Using the network pattern, the planetary gearbox is graphically represented as a general nodal scheme that is made of nodes and sides. The characteristics of nodal schemes point out the physical processes which are involved in the performance of the planetary gearbox. The paper ends in the representation of the circulation of the power flow to the second level of the planetary gearbox, and in a comparison between the analytical data resulted from the analysis of planetary gearbox performing both in the dynamic and in the stationary regimes.
Keywords: planetary gearbox, power flow, power factor, load and kinematic factors, nodal scheme.