Free and Forced Vibration Behaviors of Magnetodielectric Effect in Magnetorheological Elastomers

This paper is concerned with the free and forced vibration responses of a magneto/electroactive dielectric elastomer, emphasizing chaotic phenomena. The elastomers under external magnetic electrical excitations undergo large elastic deformation. magnetodielectric elastomer modeled based on Gent–Gent strain energy function to incorporate influence second invariant stiffening. viscoelasticity active polymer also considered in form Rayleigh’s dissipation function. equation motion governed aid Lagrangian terms physical quantity, namely, stretch elastomer. An energy-based approach utilized re-evaluate static DC voltage instabilities resonator. Time-stretch response (time history behavior), phase plane diagram, Poincaré map, fast Fourier transform are numerically obtained presented explore oscillation behavior actuators. results reveal that field may tune stability instability regions polymeric membrane. It has been shown applied lead when sinusoidal simultaneously system. this can be effectively used design soft robotic actuators membranes stimulants.