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28 April 2023 Polymer coil actuators for environmentally powered engines
Geoffrey M. Spinks, Burhan B. A. Abbasi, Aashrit Gautam, Fatemeh Mokhtari, Zhen Jiang
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Proceedings Volume PC12482, Electroactive Polymer Actuators and Devices (EAPAD) XXV; PC124820N (2023) https://doi.org/10.1117/12.2664763
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States
Abstract
Almost 100 years ago W.B. Wiegand first introduced of a solid-state engine that converted heat into continuous mechanical motion using the contractile properties of a thermally-responsive actuating material. Then and now these engines are considered as one of the few potentially viable methods for harnessing ‘low grade waste heat’ as electrical power. In this talk we consider new opportunities afforded by recently developed artificial muscle materials. Using established engine designs we develop a theoretical connection between engine mechanical output and the characteristics of the actuator material to compare the performances of vulcanised rubber, shape memory alloys and twisted and coiled polymer fiber artificial muscles. We identify the properties needed in actuator materials to maximise engine output and we speculate on possible material structures that may achieve enhanced engine performance.
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Geoffrey M. Spinks, Burhan B. A. Abbasi, Aashrit Gautam, Fatemeh Mokhtari, and Zhen Jiang "Polymer coil actuators for environmentally powered engines", Proc. SPIE PC12482, Electroactive Polymer Actuators and Devices (EAPAD) XXV, PC124820N (28 April 2023); https://doi.org/10.1117/12.2664763
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KEYWORDS
Actuators
Polymeric actuators
Polymers
Artificial muscles
Sensors
Shape memory alloys
Solid state electronics
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