Study of Variable Thickness Magnetorheological Transmission Performance of Electrothermal Shape Memory Alloy Squeeze
نویسندگان
چکیده
This paper designs a new composite transmission device for improving the torque by squeezing magnetorheological fluid (MRF) with an electrothermal shape memory alloy (SMA) spring. Based on finite element method, numerical analysis of magnetic circuit and field distribution (MR) is presented, as well theoretical derivation calculation force output SMA spring transfer variable thickness MR transmission. In addition, characteristics at different temperatures are analyzed, The research shows that springs exhibit highly non-linear during temperature rise, increase in current affects martensite phase transition quality, thus temperature. generated increases significantly when within martensitic transformation interval, maximum 318.43 N reaches 100 °C. proposed can 4.88 times under force, its transmitted increased from 15.08 to 73.56 N·m. By MRF spring, be quickly effectively.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2022
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app12094297