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智能悬臂梁有效弯矩的理论分析与确定方法
引用本文:汪秀君,陈兮,李二宝. 智能悬臂梁有效弯矩的理论分析与确定方法[J]. 空军工程大学学报(自然科学版), 2002, 3(3): 81-83
作者姓名:汪秀君  陈兮  李二宝
作者单位:空军工程大学导弹学院 陕西三原713800(汪秀君,陈兮),空军工程大学导弹学院 陕西三原713800(李二宝)
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。智能悬壁梁,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,通过分析智能梁横载面上的应变分布,推导出由压电驱动器应变产生的有效左的理论计算公式,并给出确定有效弯矩的两种方法。

关 键 词:压电材料 有效弯矩 挠度 转角
文章编号:1009-3516(2002)03-0081-03
修稿时间:2001-01-10

he Theoretical Analysis and Measurement of the Effective Moment of the Intelligent Cantilever Beam
WANG Xiu-jun,CHEN Xi,LI Er-bao. he Theoretical Analysis and Measurement of the Effective Moment of the Intelligent Cantilever Beam[J]. Journal of Air Force Engineering University(Natural Science Edition), 2002, 3(3): 81-83
Authors:WANG Xiu-jun  CHEN Xi  LI Er-bao
Affiliation:The Missile Institute, Air Force Engineering University, Sanyuan 713800, China
Abstract: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.
Keywords:piezoelectric material  efficient moment  deflection  slope
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