期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 49, 期 1, 页码 552-557出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2012.2207735
关键词
Biased minor loop; giant magnetostrictive material; hysteresis; unsaturated
资金
- National Natural Science Foundation of China [50905051]
- Natural Science Foundation of Zhejiang Province [Y1080004]
- Zhejiang Province key science and technology innovation team [2010R50003]
When modeling the biased minor loops of the giant magnetostrictive material (GMM) with the classic Jiles-Atherton method, it is hard to describe the characters. When analyzing the shape changing rule of the hysteresis minor loops of Terfenol-D, whose magnetizations are not saturated, the shapes of loops are mainly affected by pinning factor and by curve shape parameter. The parameter increases with the amplitude of the minor loop driving magnetic field and decreases with the bias magnetic field, while parameter decreases with the bias magnetic field of the minor loop. A sigmoid curve function was adopted as the revision function of and. The revised minor loop model not only can well demonstrate the hysteresis character of biased minor loops and symmetric minor loops of Terfenol-D, but also does not need any foregoing information of minor loop magnetizations. The maximum error between the simulation results and experiments is reduced from 11.77% to 3.5%.
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