Experimental Modeling of Magnetic Hysteresis Power Loss of Terfenol-D at Different Values of Frequency and Mechanical Pre-Stress

Talebian, Soheil

doi:10.52547/masm.1.1.15

Experimental Modeling of Magnetic Hysteresis Power Loss of Terfenol-D at Different Values of Frequency and Mechanical Pre-Stress

Document Type : Original Article

Author

Soheil Talebian

Ddepartment of Mechanical Engineering, Razi University, Kermanshah. Iran

https://doi.org/10.52547/masm.1.1.15

Abstract

One of the major limitations of using Terfenol-D in actuators and sensors is its magnetic hysteresis power loss which leads to reduction of mechanical power loss, precision and linear measuring range in actuators and sensors, respectively. In this paper, magnetic hysteresis power loss of Terfenol-D and its affecting parameters are studied and modeled experimentally. To this end a fabricated experimental setup is used to obtain magnetic behavior of Terfenol-D consisting of major and minor hysteresis loops at different values of frequency, magnetic field intensity and mechanical pre-stress. Data of these loops are used as an input to analytical equation of magnetic hysteresis loss. The results show that the magnetic hysteresis loss increases with increasing in frequency and peak value of magnetic field intensity and decreasing in mechanical pre-stress. Then, an explicit model based on power relations for frequency, peak value of magnetic field intensity and mechanical pre-stress is presented to predict magnetic hysteresis power loss. This model is validated under new different conditions and the results show very good agreement with analytical model. The main advantage of the explicit model is that it does not need hysteresis loops as input data and it can predict the magnetic hysteresis power loss only by determining the values of conditional parameters.

Keywords

Terfenol-D

Magnetic Hysteresis Loss

Magnetic Hysteresis Loops

20.1001.1.27834220.1400.1.1.2.0

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