Results 11 to 20 of about 2,858 (248)
Stray-field loss and flux distribution inside magnetic steel plate under harmonic excitation
COMPEL - the International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 2017 Purpose This paper aims to investigate an efficient approach to model the electromagnetic behaviors and predict stray-field loss inside the magnetic steel plate under 3D harmonic magnetization conditions so as to effectively prevent the structural ...
Xiaojun Zhao +2 more
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Giant electric field-induced second harmonic generation in polar skyrmions
Nature CommunicationsElectric field-induced second harmonic generation allows electrically controlling nonlinear light-matter interactions crucial for emerging integrated photonics applications.
Chenguang Deng +12 more
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Discrete Excitation Spectrum of a Classical Harmonic Oscillator in Zero-Point Radiation
Foundations of Physics, 2015 We report that upon excitation by a single pulse, a classical harmonic oscillator immersed in the classical electromagnetic zero-point radiation exhibits a discrete harmonic spectrum in agreement with that of its quantum counterpart.
Wayne Cheng-Wei Huang, Herman Batelaan
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Contributions to Elimination of Excitation Field Harmonics in Turbogenerators
Advances in Electrical and Computer Engineering, 2022 Turbogenerators driven by high-speed turbines are frequently used in electrical power generation. Power quality of a synchronous generator is directly associated with its excitation field harmonics. Conventional method to eliminate the most prominent harmonics is to distribute the slots to 2/3 of the rotor perimeter with equal slot pitches and ...
ATALAY, A. K., KOCABAS, D. A.
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An harmonic equivalent excitation method for random vibration response
Advances in Mechanical Engineering, 2022 Many loads on engineering structures had obvious randomness, such as earthquakes, wind, sea waves, uneven pavement, etc. The calculation and analysis of random vibration were complicated and inefficient, which has perplexed the development of engineering
Kaiwei Wu, Chuanbo Ren, Lianzheng Li
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Novel Single Inverter-Controlled Brushless Wound Field Synchronous Machine Topology
Mathematics, 2021 This paper proposes a novel brushless excitation topology for a three-phase synchronous machine based on a customary current-controlled voltage source inverter (VSI).
Syed Sabir Hussain Bukhari +5 more
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NONLINEAR FIELD RESPONSE OF PILES UNDER HORIZONTAL HARMONIC EXCITATIONS
Proceedings of International Structural Engineering and Construction, 2022 Harmonic excitation of pile foundation is a typical dynamic phenomenon occur during machine vibration. In many cases, it has been found that the horizontal excitations are the critical ones which governs the design for machine-based pile foundations. In order to comprehend the horizontal frequency-amplitude responses of pile foundation under various ...
Shiva Shankar Choudhary, Sanjit Biswas
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Nonlinear dynamic responses of an inclined beam to harmonic excitation in temperature field
IMA Journal of Applied Mathematics, 2022 Abstract Using both analytical and numerical methods, nonlinear dynamic behaviours including chaotic motions and subharmonic bifurcations of an inclined beam subjected to harmonic excitation in temperature field are investigated in this paper. Based on the Galerkin method, the mathematical model of motion is derived.
Liangqiang Zhou, Fangqi Chen
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Research on the Orthogonal Fundamental Mode Fluxgate Sensor Circuit
IEEE Access, 2020 Currently, magnetic fluxgate circuits used for magnetic field measurements mostly adopt parallel excitation second harmonic generation. The magnetic fluxgate developed by this method cannot possess both low noise and high bandwidth at the same time.
Zhenzhong Yuan +4 more
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Loss characteristics investigation of FSCW-PMSM under SVPWM inverter supply
电力工程技术, 2023 To investigate the effects of time-harmonic current introduced by inverter on loss characteristics of fractional-slot concentrated-winding permanent magnet synchronous machine (FSCW-PMSM), a method is proposed to analyze the harmonic characteristics of ...
CHEN Zhenfei +4 more
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