Design and Analysis of Mechanical Characteristics of EAP Flexible Drivers

Electroactive polymer(EAP) is a “smart material” with high energy density, high electromechanical energy conversion efficiency, simple structure, good adaptability to the working environment, etc. It can be made into various shapes to realize flexible drivers. At present, the common EAP actuator is...

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Bibliographic Details
Published in:Machines (Basel) 2022-12, Vol.10 (12), p.1241
Main Authors: Li, Bing, Niu, Shaohua, Li, Bingyang, Wang, Pengfei, Qiao, Yuli
Format: Article
Language:English
Subjects:
Actuators
Analysis
Automobile drivers
Coupling
Deformation
Design
dielectric EAP
Elastomers
Electric fields
Electric potential
Electroactive polymers
Electrodes
electromechanical coupling
Elongation
Energy
Energy conversion efficiency
Mechanical properties
Polymers
Simulation
Smart materials
Stiffness
Viscoelasticity
Voltage
Working conditions
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Summary:Electroactive polymer(EAP) is a “smart material” with high energy density, high electromechanical energy conversion efficiency, simple structure, good adaptability to the working environment, etc. It can be made into various shapes to realize flexible drivers. At present, the common EAP actuator is mainly composed of EAP film wound on a spring, and the output performance of this type of actuator is related to the spring stiffness, film prestretching rate, voltage, and other factors. Its working process is actually an electromechanical coupling process. In this paper, two types of cylindrical actuators are designed and tested. The electromechanical coupling mathematical model is constructed to simulate the driver. According to the experimental and simulation results, the relationship between the output displacement and elongation strain of EAP actuator and voltage, spring stiffness, and tensile rate is analyzed. It provides a reference and basis for the design of similar actuators.
ISSN:2075-1702
2075-1702
DOI:10.3390/machines10121241