摘要
利用压电材料的逆压电效应可将其制成驱动元件 ,即当对它施加电压时 ,由于电场的作用造成压电元件变形。智能悬臂梁 ,如压电驱动器采用对称安装 ,在极性相反的控制电压作用下 ,产生纯弯曲控制力矩。通过分析智能梁横截面上的应变分布 ,推导出由压电驱动器应变产生的有效弯矩的理论计算公式 。
This paper deals with the problem that the piezoelectric material can be made into driver elements by utilizing its inverse piezoelectric effect-i.e. when voltage is impressed across the material, the deformation of the piezoelectric element will be caused because of the effect of electric field. The intelligent cantilever, if the piezoelectric drivers are fitted symmetrically, will produce the pure bend control moment under the effect of the control voltage with opposite polarities. Through analysis of the strain distribution over the transverse section of the intelligent cantilever beam, the theoretical calculating formula for the effective bending moment caused by piezoelectric driver train is deduced and two methods of measurement of the effective bending moment are presented.
出处
《空军工程大学学报（自然科学版）》
CSCD
2002年第3期81-83,共3页
Journal of Air Force Engineering University(Natural Science Edition)
关键词
压电材料
有效弯矩
挠度
转角
piezoelectric material
efficient moment
deflection
slope
