1-1型OPCM驱动元件的研究

研究了具有压电正交异性特性的片状压电复合材料及其压电正交异性复合材料 (Ortho tropicPiezoelectricCompositeMaterials ,简称OPCM )驱动元件的构造机理、性能 压电正交异性复合材料在相互垂直的两主方向上呈现出明显的压电特性差异 ,作为驱动片 ,片状压电正交异性复合材料在相互垂直的两主方向表现出相反的变形 ,该特性符合一般工程材料的变形规律 它在对结构的形状和位移控制以及在自适应结构中作为驱动元件较之常规的压电驱动材料有其独特的优点 实测表明 :OPCM驱动元件的纵向诱导应变是PZT驱动元件的 1.2 8倍 ,OPCM驱动元件的纵向诱导应变是其横向诱导应变的 1.30倍 ,且方向相反 ,显示出压电正交异性复合材料驱动元件产生横向负向诱导应变的优越效能

Study on the 1-1 Type OPCM Actuator

The lamianated orthotropic piezoelectric composite materials(OPCM), together with their structures and actuating performances are studied. OPCMS show great differences in two primary perpendicular directions. Being actuation chips, the laminated OPCMS opposite deformation tendencies in two primary directions, which conforms to the deformation law of common engineering materials. This property gives advantages in the control of structure shape and displacement, and in self adaptive structures compared to the common piezoelectric actuation materials. It follows from the test that the longitudinal induced strain for OPCM actuation element is 1.28 times of that for PZT actuation element, and 1.30 times for the traverse induced strain with opposite signs.