Research of a Hybrid Diesel Locomotive Power Plant Based on a Free-Piston Engine

Abstract

<jats:p>This article describes one of the possible ways for improving the energy efficiency of shunting diesel locomotives. It means a replacing a traditional traction electric transmission with a diesel generator set with a hybrid transmission with a free-piston internal combustion engine and a linear generator. The absence of a crankshaft in an internal combustion engine makes it possible to reduce thermal and mechanical losses, which, in turn, leads to an increase in the efficiency of traction electric transmission of the diesel locomotive.</jats:p>

Dynamic Behavior of the Full-Car Model in the J-Turn Maneuver by Considering the Engine Gyroscopic Effects

“…By placing velocities of Equations ( 1)-( 3) in the Newton's linear momentum equation of the sprung mass, the force vector of the sprung mass in the vehicle coordinate system is obtained: as its longitudinal and lateral forces and obtained the data, by mathematical expressions based on a formula. In vehicles, knowing the dynamic behavior of the engine elements, such as crankshaft, can be useful for obtaining the dynamic behavior of the vehicle [20][21]. The effect of static misalignment on the dynamic behavior of a main crankshaft bearing is examined by Lahmar et al [22].…”