The dynamic balancing of the drive mechanism for roller forming unit with balanced is consideredin order to increase reliability and durability. Two problems are solved in simulation process balancing: inertia forces which applied masses centers motion links, torque reduced rotation axis shaft, that arise from action.Wherein all kinematic characteristics trolleys determined, change functions ki...

The transient interaction between tidal currents and the rotation of a horizontal axis turbine rotor have the potential to induce high asymmetric loadings, which are subsequently transmitted to the drive shaft and potentially high speed drive train components. To mitigate the potential for early component failure, analysis of asymmetric loading on marine turbines is fundamental to the design pr...

INTRODUCTION Recently, the study of single unit spherical actuators that can perform multi degree of freedom movements has increased. The spherical actuator is an electric machine that is able to tilt its shaft on multiple degrees of freedom using electromagnetic force. Various types of spherical motors have been developed. Lee et al.[1-4] devised variable reluctance spherical actuators. They r...

The results of full-scale studies unsteady processes during self-starting electric motors at pumping stations are presented. simulation transient in the modes an asynchronous drive a unit is considered order to identify nature change flow, pressure and moment resistance on pump shaft noted modes. run-down when loses drive, as well unit, investigated. In improve technical operational performance...

Within the scope of presented work, a mathematical model prototype complex motion transmission on ship was developed. The abovementioned includes long elastic elements with distributed mechanical parameters. system, containing under consideration, is driven by an engine via epicyclic gearing. torque transmitted drive shaft to propeller working variable blade geometry. rotor synchronous generato...

This paper presets steady state behavior of Direct Torque Control (DTC) of Induction motor (IM) drive. As in direct torque and flux control scheme electromagnetic torque and stator flux magnitude of induction motor drive is limited in closed loop without shaft sensors voltage modulator. This values are calculated with the help of dc link voltage of inverter and stator current. As during estimat...

Permanent Magnet Synchronous Motors (PMSM) are widely used in industrial drives due to their high power density, high torque-toinertia ratio, small torque ripple and precise control at low speed range, possibility to torque control at zero speed, high efficiency and small size. To exploit presented advantages, a vector control should be used. Vector control allows the drive a good dynamic, effe...