Dynamic Behavior of PVC Gel Actuators: Nonlinear Effects of Viscoelasticity and Electromechanical Coupling.

Yang Xiao, Zhigang Chen, Ye Wang, Hanjing Lu, Bin Luo

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Article in Polymers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Yang XiaoKey Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China.ORCID 0009-0006-3177-1862

Zhigang ChenKey Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China.

Ye WangKey Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China.

Hanjing LuKey Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China.

Bin LuoKey Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China.

Funding

Hunan Provincial Natural Science Joint Fund Project 2024JJ7490Hunan Provincial Natural Science Joint Fund Project 2024JJ7494Key Project of Hunan Provincial Department of Education 22A0537Key R & D projects in Shaoyang City in 2023 2023CG2009the China Postdoctoral Science Foundation 2021M690871

6 · The paper itself

Abstract

As an inherent property of polyvinyl chloride (PVC) gel material, viscoelasticity is closely related to the deformation of the material, which will affect its dynamic behavior. However, the existing theoretical model does not consider the influence of time-varying damping on its nonlinear vibration, which leads to the unclear nonlinear dynamic behavior of the material under the dual influence of viscoelasticity and electromechanical parameters and limits the further application of the material. Therefore, in this study, the standard linear solid (SLS) model was used to describe the time-varying dynamic change of viscoelasticity of PVC gel, and the electromechanical coupling second-order nonlinear constitutive equation of PVC gel actuator was established by combining the Gent free energy theory model. The harmonic resonance, stability and periodicity of PVC gel actuator under different loading conditions were investigated by using dynamic analysis methods such as phase path, Poincaré map, bifurcation diagram, and Lyapunov exponent. Through the systematic research in this study, the deformation law of PVC gel with time-varying damping under different electromechanical parameters was revealed, and the parameter control strategy of deformation stability and chaos was obtained, which provided the design method and theoretical basis for the further application of the material.

Indexed as

electromechanical constitutive modelLyapunov exponentPVC gelstabilityviscoelasticity

Identifiers

PMID40076125

DOI10.3390/polym17050633

PMCPMC11902653

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