Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Mohammad Hossain Mohammadi"'
Autor:
Ekaterina Andriushchenko, Ants Kallaste, Mohammad Hossain Mohammadi, David A. Lowther, Hamidreza Heidari
Publikováno v:
Machines, Vol 10, Iss 7, p 559 (2022)
The main issue of the switched reluctance motor (SRM) is its noise and vibration caused by high torque ripples on the rotor’s shaft. Many methods have been developed for improving the torque characteristic of the SRM. For example, design optimizati
Externí odkaz:
https://doaj.org/article/1633de33ca2f4a2a991b53a82f3249bc
Publikováno v:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 41:925-937
Purpose Acoustic noise is a crucial performance index in the design of electrical machines. Due to the challenges associated with modelling a complete motor, the stator is often used to estimate the sound power in the prototyping stage. While this ap
Publikováno v:
IEEE Transactions on Magnetics. 57:1-5
Design and optimization problems typically require running thousands of motor simulations which can take several hours, if not days. To overcome this bottleneck, surrogate models are often used in engineering design to expedite the process. When inve
Publikováno v:
IEEE Transactions on Magnetics. 56:1-4
In this article, a new method for predicting efficiency maps of electric motor drives is proposed using deep learning (DL). Since many operating points need to be simulated using finite-element (FE) analysis to estimate the efficiency map of a single
Publikováno v:
IEEE Transactions on Magnetics. 56:1-4
Design and optimization problems typically require running thousands of motor simulations, which could take several hours if not days. Finding alternative means of reducing the solution time has recently gained research interest. Surrogate models can
Publikováno v:
فیزیولوژی محیطی گیاهی, Vol 1, Iss 2, Pp 1-10 (2006)
In this research, the effect of different amounts of ammonium sulphate as sulphate fertilizer in 0, 50, 100, 150, 200 Kg/ha under farm conditions on amount of chlorophyll a, b, carotene and xanthophyll and enzymes activity of catalase, peroxidase and
Externí odkaz:
https://doaj.org/article/af3c1dc8ec734ac7bb18eb3c24d3078b
Publikováno v:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 39:198-205
Purpose The design of electromagnetic systems for a variety of applications such as induction heating, electrical machines, actuators and transformers requires the solution of a multi-physics problem often involving thermal, structural and mechanical
Publikováno v:
IEEE Transactions on Magnetics. 55:1-4
This paper investigates different spatial filtering techniques used with ON/OFF based topology optimization and compares their performances for optimizing a C-core electromagnetic actuator. The filters’ efficacy in dealing with checkerboard pattern
Publikováno v:
IEEE Transactions on Magnetics. 55:1-5
This paper investigates acoustic noise when an electric motor is fed with three-phase pulsewidth-modulated (PWM) currents with varying modulation indices. The procedure involves using a data-driven process to create a design space for different geome
Publikováno v:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 38:1374-1385
PurposeThis paper aims to propose a data-driven approach to determine the design guidelines for low-frequency electromagnetic devices.Design/methodology/approachTwo different devices, a core-type single-phase transformer and a motor-drive system, are