研究上下表面粘贴压电层的功能梯度材料Euler梁在升温及电场作用下的振动行为.在精确考虑轴线伸长基础上,建立压电功能梯度Euler层合梁在热-电-机械载荷作用下的几何非线性动力学控制方程.其中,假设功能梯度的材料性质沿厚度方向按照幂函数连续变化,压电层为各向同性均匀材料.把问题线性化,利用打靶法,获得在均匀电场和横向非均匀升温场内两端固定和两端简支Euler梁在热屈曲前自由振动特性的半解析数值解.由于材料在横向的非均匀性,即使在均匀升温和均匀电场作用下,梁内仍然会产生拉-弯耦合效应,对梁的自振频率也有一定的影响.
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