Axial Flux Permanent Magnet (AFPM) machines are attractive candidates for Electric Vehicles (EVs) applications due to their axial compact structure, high efficiency, high power and torque density. This paper presents general design characteristics of AFPM machines. Moreover, torque density of the machine which is selected as main objective function, is enhanced by using Genetic Algorithm (GA) a...

It is well known that the use of slotted stators in motors produces undesirable effects, such as magnetic flux distortion, additional losses, ripple torque, and vibration. However, a large number studies pay more attention to stator slots slot wedges (MSW) asynchronous permanent magnet motors, ignoring same problems capacity high voltage line start synchronous (HVLSPMSM). In order disclose effe...

Self-starting performance is a key factor in the evaluation of a Darrieus straight-bladed vertical axis turbine. Most traditional studies have analyzed the turbine’s self-starting capability using the experimental and numerical data of the forced rotation. A 2D numerical model based on the computational fluid dynamics (CFD) software ANSYS-Fluent was developed to simulate the self-starting proce...

PURPOSE The authors have observed a failure to achieve secure fixation in elderly patients when inserting a half-pin at the anteromedial surface of the tibia. The purpose of this study was to compare two methods for inserting a half-pin at tibia diaphysis in elderly patients. MATERIALS AND METHODS Twenty cadaveric tibias were divided into Group C or V. A half-pin was inserted into the tibias ...

Nowadays the use of the Switched Reluctance Motors (SRMs) has been considerably increased in various home and industrial applications. Despite of many advantages of this type of motors, such as simple structure, low cost, and high reliability, the main disadvantage of them is the generation of high torque pulsation. This paper presents a novel method to optimize a typical SRM such that the torq...

Introduction: The aim of this study was to determine the incidence of dentinal cracks in the  mesial root of maxillary molar during canal preparation using Neoniti system in different torque settings. Materials &Methods: In this in-vitro study, 60 maxillary molars extracted for various reasons were selected. The teeth were divided into 4 groups: one group(n=15) without preparation was con...

Since torque ripple is the main cause of noise and vibrations, the performance of Switched Reluctance Motor (SRM) can be improved by minimizing its torque ripple using a novel control technique called Direct Torque Control (DTC). In DTC technique, torque is controlled directly through control of magnitude of the flux and change in speed of the stator flux vector. The flux and torque are maintai...

In this day and age, the D.C motors have been commonly used in many enterprises, sports, kind toys, several home appliances since of its outstanding features like reliability, a extensive limit torque-speed, better performance, good starting torque, lower electrical control range, weight/torque ratio noise. contemporary Gulf Arab societies for centuries, camel racing has part Arabian culture, o...

The paper presents an analysis of operating currents and torques during self-starting motors with a voltage 6 kV for cases short circuit in the head feeders from main step-down substation to most distant substations mining enterprises. For network under consideration, characteristic modes are: on buses shop substations. industry when selfstarting asynchronous squirrel-cage rotor synchronous sta...