Electrical Drive An electric drive is a system that converts electrical energy into mechanical energy. It also provides electrical control of the whole process through several devices and technologies (Figure 1). The objective is to create a smooth and versatile control to achieve a specifi c speed-torque characteristic. It is a key component of the power conversion chain between power sources ...

Purpose – The purpose of this paper is to discuss the numerical modelling of 3D structure of micro-electro-mechanical systems (MEMS) accelerometers. The general idea being discussed is the method of levitation force reduction, as the main source of incorrect mathematical model of comb drive structure. Design/methodology/approach – Accelerometers design is a highly interdisciplinary area and, th...

Yanyan Tang†, Clifford L. Henderson†, John Muzzy†, David W. Rosen* † School of Chemical & Biomolecular Engineering, 311 Ferst Drive, N.W., Georgia Institute of Technology, Atlanta, GA 30332-0100 *Corresponding author; School of Mechanical Engineering, 813 Ferst Drive, N.W., Georgia Institute of Technology, Atlanta, GA 30332-0405; Email: [email protected] Reviewed, accepted September 1, ...

Satish G. Kandlikar Fellow ASME Thermal Analysis, Microfluidics, and Fuel Cell Laboratory, Rochester Institute of Technology, 76 Lomb Memorial Drive, Rochester, NY 14623; Mechanical Engineering Department, Rochester Institute of Technology, 76 Lomb Memorial Drive, Rochester, NY 14623 e-mail: [email protected] A Theoretical Model for Axial Heat Conduction Effects During Single-Phase Flow in Microch...

Department of Mechanical Engineering – Engineering Mechanics, Michigan Technological University, 815 R.L. Smith Building, 1400 Townsend Drive, Houghton, MI 49931, USA Department of Electrical and Computer Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, USA c Shenyang Institute of Automation, Chinese Academy of Science, Nanta Street 114, Shenyang, Liaonin...

The objective of this paper is to review direct-drive and geared generator systems and to identify suitable generator concepts for direct-drive wind turbines. The comparison of different generator systems in literature is discussed with the criteria based on the energy yield, cost, and weight. Different promising permanent-magnet (PM) machines proposed in literature are also discussed to find s...

Major constraints while using motor drive system are efficiency and cost. Commutation in the conventional DC motors is carried out by commutator which is rotating part placed on the rotor and brushes. Due to these mechanical parts, conventional DC motor consist high amount of losses. Brushless DC (BLDC) Motors are very extensively used motors these days because of its advantages over convention...