Results 1 to 10 of about 30,463 (305)

Quantitative modeling of forces in electromagnetic tweezers [PDF]

open access: yesJournal of Applied Physics, 2010
This paper discusses numerical simulations of the magnetic field produced by an electromagnet for generation of forces on superparamagnetic microspheres used in manipulation of single molecules or cells. Single molecule force spectroscopy based on magnetic tweezers can be used in applications that require parallel readout of biopolymer stretching or ...
Fridon Shubitidze, Dmitri V Vezenov
exaly   +3 more sources

Study on the Influence of Winding Height on the Short-Circuit Withstand Capability of 110 kV Transformers [PDF]

open access: yesSensors
The short-circuit withstanding capability of a transformer is a critical indicator for evaluating its operational reliability. This study investigates the influence of the low-voltage winding height, a key structural parameter, on the electromagnetic ...
Yukun Ma   +7 more
doaj   +2 more sources

A New Squirrel Cage Rotor Structure to Improve the Dynamic Performance of the Single Phase Induction Motor [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2022
Audible noise radiated by electrical machines is gaining more and more importance in the design process of electrical machines. The radial electromagnetic forces in induction motors play an important role in the production of audible noise and vibrations.
Hamed Shadfar, Hamid Reza Izadfar
doaj   +1 more source

Computation of electromagnetic forces in the windings of amorphous core transformers [PDF]

open access: yesArchives of Electrical Engineering, 2023
Electromagnetic forces generated by the short circuit current and leakage flux in low- and high-voltage windings of distribution transformers as well as amorphous core transformers will cause the translation, destruction, and explosion of the windings ...
Bao Doan Thanh   +2 more
doaj   +1 more source

Force spectroscopy with electromagnetic tweezers [PDF]

open access: yesJournal of Applied Physics, 2021
Force spectroscopy using magnetic tweezers (MTs) is a powerful method to probe the physical characteristics of single polymers. Typically, molecules are functionalized for specific attachment to a glass surface at one end and a micrometer-scale paramagnetic bead at the other end.
Joseph G. Piccolo   +8 more
openaire   +3 more sources

Tangential Electromagnetic Force Array on the Vibration and Noise of Electric Axle for New Energy Vehicle

open access: yesIEEE Access, 2023
It is generally accepted that the vibration and noise of electrical motors mainly depend on radial electromagnetic forces. However, the relationship between electromagnetic forces and system modes becomes special when integrating the electrical motor ...
Chao Huang   +4 more
doaj   +1 more source

Electromagnetic Force on an Aluminum Honeycomb Sandwich Panel Moving in a Magnetic Field

open access: yesSensors, 2023
This paper reports a method for calculating the electromagnetic force acting on an aluminum honeycomb sandwich panel moving in a magnetic field. This research is motivated by the non-contact electromagnetic detumbling technology for space non-cooperative
Yunfeng Yu   +4 more
doaj   +1 more source

FINITE-ELEMENT CALCULATION OF ELECTROMAGNETIC FORCES IN THE DEFERENT SHAPES OF DISTRIBUTION TRANSFORMERS WINDING UNDER SHORT CIRCUIT CONDITION

open access: yesJournal of Engineering and Sustainable Development, 2022
This paper is concerned with calculating the electromagnetic forces in the windings of distribution transformers with different shapes of coils. The electromagnetic forces as well as the magnetic flux density and their distribution were analyzed and ...
Weeam J. Hussein, Kassim R. Hameed
doaj   +3 more sources

Numerical and Experimental Investigation of the Impact of the Electromagnetic Properties of the Die Materials in Electromagnetic Forming of Thin Sheet Metal

open access: yesJournal of Manufacturing and Materials Processing, 2021
In electromagnetic forming of thin sheet metal, the die is located within the effective range of the electromagnetic wave. Correspondingly, a current is induced not only in the sheet metal, but also in the die. Like the current in the workpiece, also the
Björn Beckschwarte   +4 more
doaj   +1 more source

Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines

open access: yesApplied Sciences, 2021
There are three principal sources of noise and vibration in electrical machines: electromagnetic sources, mechanical sources, and aerodynamic sources. Nowadays, one of the major advantages of permanent-magnet synchronous machines is their torque density.
Iratxo Gómez   +3 more
doaj   +1 more source

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