Dynamic Response of Fixed Supported Liquid Crystal Elastomer Beam under Moving Illumination
Liquid crystal elastomer (LCE) beams produce a bending dynamic response under the moving illumination. The dynamic model of LCE fixed supported beam under moving illumination was established,and the control equation of dynamic response was derived. On this basis,the analytical solution of the dynamic response of LCE fixed supported beam under moving illumination was obtained by modal superposition method and Duhamel integral method,and the dynamic response was programmed by Matlab software to analyze the influence of physical parameters on the dynamic response of LCE fixed supported beam. The result showed that the maximum amplitude of the dynamic response on the mid-span of the fixed supported beam reached the peak only when the velocity of the moving illumination reaches the first-order critical velocity. In addition,the dynamic response can be effectively controlled by the light intensity changes,the shrinkage coefficient and the damping coefficient of LCE material. The results can be applied to the fields including soft robotics,intelligent control and energy conversion.
liquid crystal elastomermoving illuminationdynamic responsemodal superposition methodDuhamel integral
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维普
