Modelling and identification of a non-linear saturated magnetic circuit: Theoretical study and experimental results

2006 ◽  
Vol 71 (4-6) ◽  
pp. 446-459 ◽  
Author(s):  
Sandrine Moreau ◽  
Jean-Claude Trigeassou
Keyword(s):  
Theoretical Study ◽  
Magnetic Circuit ◽  
Experimental Results ◽  
Non Linear

Nuclear magnetic resonance microscopy with 4-μm resolution: Theoretical study and experimental results

1988 ◽  
Vol 15 (6) ◽  
pp. 815-824 ◽  
Author(s):  
Z. H. Cho ◽  
C. B. Ahn ◽  
S. C. Juh ◽  
H. K. Lee ◽  
R. E. Jacobs ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Theoretical Study ◽  
Experimental Results ◽  
Magnetic Resonance Microscopy ◽  
Nuclear Magnetic

Non-Linear Dynamic Magneto Electric Effects in Ferromagnetic-Ferroelectric Layered Composites

2013 ◽  
Author(s):  
Satenik Harutyunyan ◽  
Davresh Hasanyan
Keyword(s):  
Vibration Frequency ◽  
Strain Distribution ◽  
Longitudinal Vibration ◽  
Three Dimensional ◽  
Low Frequency ◽  
Structure Design ◽  
Experimental Results ◽  
Physical Parameters ◽  
Wide Range ◽  
Non Linear

A non-linear theoretical model including bending and longitudinal vibration effects was developed for predicting the magneto electric (ME) effects in a laminate bar composite structure consisting of magnetostrictive and piezoelectric multi-layers. If the magnitude of the applied field increases, the deflection rapidly increases and the difference between experimental results and linear predictions becomes large. However, the nonlinear predictions based on the present model well agree with the experimental results within a wide range of applied electric field. The results of the analysis are believed to be useful for materials selection and actuator structure design of actuator in actuator fabrication. It is shown that the problem for bars of symmetrical structure is not divided into a plane problem and a bending problem. A way of simplifying the solution of the problem is found by an asymptotic method. After solving the problem for a laminated bar, formula that enable one to change from one-dimensional required quantities to three dimensional quantities are obtained. The derived analytical expression for ME coefficients depend on vibration frequency and other geometrical and physical parameters of laminated composites. Parametric studies are presented to evaluate the influences of material properties and geometries on strain distribution and the ME coefficient. Analytical expressions indicate that the vibration frequency strongly influences the strain distribution in the laminates, and that these effects strongly influence the ME coefficients. It is shown that for certain values of vibration frequency (resonance frequency), the ME coefficient becomes infinity; as a particular case, low frequency ME coefficient were derived as well.

Computer Simulation of the Pulsed Powering of D.C. Circuit Breaker for the 13 Ka Superconducting Magnet Energy Extraction System

2009 ◽  
Vol 4 (2) ◽  
pp. 84-91
Author(s):  
Aleksandr Erokhin ◽  
Anatoliy Medvedko
Keyword(s):  
Computer Simulation ◽  
Magnetic Circuit ◽  
Circuit Breaker ◽  
Superconducting Magnet ◽  
Extraction System ◽  
Energy Extraction ◽  
Electrical Circuits ◽  
Non Linear

The article presents the results of modeling and computer simulation of non-linear devices such as the electromagnetic driver of a D.C. circuit breaker. The mechanical and electromagnetic parts of the driver are represented as equivalent electrical circuits and all basic processes of the driver’s magnetic circuit are calculated.

scholarly journals Wavelength dependent nonlinear optical response of tetraphenylethene aggregation-induced emission luminogens

2018 ◽  
Vol 2 (12) ◽  
pp. 2263-2271 ◽  
Author(s):  
Jianbo Xiong ◽  
Xinyue Li ◽  
Chunqing Yuan ◽  
Sergey Semin ◽  
Zhaoquan Yao ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Theoretical Calculations ◽  
Experimental Results ◽  
Nlo Properties ◽  
Aggregation Induced Emission ◽  
Non Linear ◽  
Potential Applications ◽  
Linear Optical Properties ◽  
Linear Optical

Studies of the non-linear optical properties of classical AIEgens are rare, despite their important potential applications in organic composite photonic circuits. Here, we present experimental results, supported by theoretical calculations, of the non-linear optical (NLO) properties of TPE and its halogenated derivates.

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