Results 21 to 30 of about 49,255 (209)

Research on the hysteresis properties of a pitching NACA0012 airfoil under low transonic ground effect

Kongqi donglixue xuebao
Based on an investigation of pitch oscillation encountered during electromagnetic-assisted near-ground takeoff of a NACA0012 airfoil, this study proposes a layering criterion for transonic static ground effects.
Xingdong LUO, Zihao HOU
doaj   +1 more source

Research on typical topologies of a tubular horizontal-gap passive magnetic levitation vibration isolator

MATEC Web of Conferences, 2017
Magnetic levitation vibration isolators have attracted more and more attention in the field of high-precision measuring and machining equipment. In this paper, we describe a tubular horizontal-gap passive magnetic levitation vibration isolator.
Zhou Yiheng, Kou Baoquan, Yang Xiaobao, Luo Jun, Zhang He   +4 more
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A novel magnetic circuit and structure for magnetic levitation ruler

Measurement + Control, 2023
The single axis linear displacement measurement system of CMM is composed of grating ruler, servo motor and linear motion mechanism. Although the measuring accuracy of grating ruler is high, the accuracy of servo motor and linear motion mechanism is low.
Jiyuan Sun, Pin Li, Yan Zheng, Chunlin Tian, Zhenxiong Zhou   +4 more
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Structure Size Optimization and Magnetic Circuit Design of Permanent Magnet Levitation System Based on Halbach Array

IEEE Access, 2023
To utilize the load-bearing potential of permanent magnetic levitation (PML) structures and improve the levitation efficiency of rare-earth permanent magnetic materials, firstly, the number of magnetic blocks per unit wavelength and the correction factor
Fazhu Zhou, Jie Yang, Limin Jia
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"Bernoulli" Levitation

, 2002
"Bernoulli" levitation is the basis of many popular counter-intuitive physics demonstrations. However, few of these lend themselves to a quantitative description without recourse to computational fluid dynamics.
Bendall, Sarah, Kotlicki, Andrzej, Waltham, Chris   +2 more
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Determination of critical current density in melt-processed HTS bulks from levitation force measurements

, 1999
A simple approach to describe the levitation force measurements on melt-processed HTS bulks was developed. A couple of methods to determine the critical current density $J_c$ were introduced. The averaged $ab$-plane $J_c$ values for the field parallel to
A. A. Kordyuk, Kordyuk A. A., R. V. Viznichenko, Sugiura T., T. Habisreuther, V. V. Nemoshkalenko, Vysotskii V. V., W. Gawalek   +7 more
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The switching ratio and stability of ITO/HfO2/SiO2/Ag memristors improved by SiO2 functional layer

Gongneng cailiao yu qijian xuebao
The randomness of conductive filament growth and rupture has always been a key factor affecting the switching ratio and stability of memristors. In this paper, an ITO/HfO2/SiO2/Ag memristor with an HfO2/SiO2 heterojunction as the functional layer was ...
Xin XU, Hong ZHANG, Feng YANG, Yong ZHANG   +3 more
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Effect of onboard superconducting magnet length on the levitation characteristics of electrodynamic levitation train

机车电传动, 2022
Superconducting electrodynamic levitation represents one of the development trends of the maglev technology. Taking the superconducting electrodynamic levitation train running on the Yamanashi test line as the research object, this paper was aimed to ...
WU Dingding, HUANG Huan, YUAN Yuhang, ZHENG Jun, CAI Chengbiao, DENG Zigang   +5 more
doaj  

Quasi-static Stability of Microscale Contactless Inductive Suspension with Electrostatic Stiffness Control Loop [PDF]

Journal of Applied and Computational Mechanics
The present paper is devoted to analytical investigation of the nonlinear dynamics of a conductive rigid ring in a contactless electromagnetic suspension.
Pavel Udalov, Ivan Popov, Alexei Lukin, Lev Shtukin, Kirill Poletkin   +4 more
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Quantifying the levitation picture of extended states in lattice models

, 2002
The behavior of extended states is quantitatively analyzed for two dimensional lattice models. A levitation picture is established for both white-noise and correlated disorder potentials.
A. Gramada, A. Potts, A.A. Shashkin, Ana L. C. Pereira, Ana L.C. Pereira, B. Huckestein, C.H. Lee, D. Shahar, D.E. Khmelnitskii, D.J. Thouless, D.N. Sheng, D.N. Sheng, D.N. Sheng, D.R. Hofstadter, D.Z. Liu, E. Abrahams, F. Wegner, F.D.M. Haldane, H.W. Jiang, I. Glozman, K. Yang, K. Yang, K.v. Klitzing, M. Hilke, M.M. Fogler, P. A. Schulz, R.B. Laughlin, R.J.F. Hughes, S. Das Sarma, S. Kivelson, S.-H. Song, S.R.E. Yang, T. Ando, T. Wang, T.H. Koschny, T.V. Shahbazyan, X.C. Xie, Y. Morita   +37 more
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