▎ 摘　　要

In this study, the nonlinear vibration control of a simply supported sandwich microplate with piezoelectric facesheets reinforced with graphene sheets is investigated regarding uncertainty about the temperature of the operating environment. The goal is that despite the variation of the temperature of the operating environment, the steady state deflection of the mid-point of the microplate subjected to an external transverse load remains identical to the corresponding value at room temperature. The temperature dependency of the material properties of the piezoelectric facesheets, the matrix phase, and the graphene sheets are regarded. When the material temperature dependency is accompanied by the rising of the operating ambient temperature, we need a controller with the ability to control a system with uncertainties. The motion equations of the piezoelectric microplate are derived in reference to the Kirchhoff's plate hypothesis alongside the modified couple stress theory. The free vibrations outcomes are achieved by implementing the Navier's method. For nonlinear vibration control of piezoelectric graphene sheets microplate, sliding mode and feedback linearization controllers are exploited. Some numerical examples are released in order to present the impressions of material length scale constant, graphene sheets distribution pattern, and temperature on the dynamic response, and the controlled response of piezoelectric graphene sheets microplate. It is found that the sliding mode controller operates more appropriately relative to the feedback linearization controller with a smaller energy cost. Moreover, the sliding surfaces for various graphene sheet models coincide with each other after an opening divergence.