Axial slits remarkably improve performance of the solid-rotor induction motors due to reduction of the rotor surface impedance. Those also change the end effect, but this is usually ignored in analysis, as it would require taking account for a realistic current density distribution. This work employs a simplified local 3-d finite element analysis to create a surrogate model of this end effect. ...

In this research work, the effects of flotation parameters on coking coal flotation combustible material recovery (CMR) were studied by the artificial neural networks (ANNs) method. The input parameters of the network were the pulp solid weight content, pH, collector dosage, frother dosage, conditioning time, flotation retention time, feed ash content, and rotor rotation speed. In order to sele...

A molecular turnstile based on a hydroquinone luminescent hinge bearing two divergently oriented pyridyl units behaving as a rotor and equipped with a handle composed of a tridentate coordinating site considered as the stator was synthesized and its structure was studied in the solid state by X-ray diffraction on single crystal. Its dynamic behaviour in solution was investigated by 1- and 2-D N...

This article presents the electromagnetic and mechanical design as well experimental testing results for a 9.5:1 gear ratio, series connected, coaxial magnetic (MG) use in marine hydrokinetic generator. A two- three-dimensional magnetostatic finite-element analysis (FEA) sizing was also conducted torque density comparison between using nested or MG typology is presented. To achieve high density...

The popularity of electric vehicles (EVs) and hybrid (HEVs) is projected to increase as environmental consciousness rises. They have emerged a potential substitute for traditional electrical machines like the switched reluctance motors (SRMs). SRMs are renowned their low cost production maintenance, built-in fault tolerance, simple design. Additionally, because machine's rotor construction does...

this work deals with effects of asymmetric stiffness on the dynamic behaviour of the rotor system. the analysis is presented through an extended lagrangian hamiltonian mechanics on the asymmetric rotor system, where symmetries are broken in terms of the rotor stiffness. the complete dynamics of asymmetries of rotor system is investigated with a case study. in this work, a mathematical model is ...

We present a dynamics model of rotor blades for real-time helicopter simulation. Collisions between the air flow and the moving blades make helicopters fly. In aerodynamics, or even in computer simulations, they precisely analyzed the collisions between the fluid(air) and the solid object(blades), and calculated the differential equations from the collisions. Thus, it was hard for them to gener...

In this thesis focus is on the electromagnetic design of a synchronous machine suited for a belt driven alternator and starter (BAS) in a micro hybridisation of a mid size passenger car. The BAS needs to provide a high cranking torque to start the combustion engine, especially in a cool condition where the requirements is highest. Beside the high cranking torque is it desirable to have a high p...