2024
DOI: 10.3390/act13050182
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Study of Self-Excited Thermomechanical Oscillator with Shape Memory Alloys

Ivo Yotov,
Georgi Todorov,
Todor Todorov

Abstract: In this paper, a new type of self-excited thermomechanical oscillator containing an oscillating shape memory alloy (SMA) filament with two symmetrically arranged spheres is investigated. The self-excitation of the oscillations is due to a heater of constant temperature, which causes periodic contractions of the filament when it approaches it. The contracted filament moves away from the heater a distance sufficient to cool it. Under the action of the weight of the spheres, the cooled filament re-approaches the … Show more

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