摘要
采用 Rayleigh- Ritz法初步计算了集中质量对四边简支边界条件下的矩形板振型的影响 ,由计算结果绘制了矩形板的前两阶振型 ,并采用有限元法与计算结果进行了对比。分析表明 ,附加质量能导致波形的不对称且此不对称的振型波形主要是由两相邻阶的模态耦合而成 ,为压电驱动中不对称波的形成与作用的进一步研究奠定了基础。
The vibration mode of rectangular plate was calculated by Rayleigh Ritz method,which is simple supported on four sides and has concentrated mass on it.The shape of two frontal vibration modes was obtained.The calculation result was contrasted by FEM.Analysis indicates that concentrated mass can lead to dissymmetry mode shape and the dissymmetry wave was coupled by two adjacent mode.It provides the basis for further study on the forming and function of dissymmetry wave in piezoelectricity drive aspect.
出处
《压电与声光》
CAS
CSCD
北大核心
2002年第3期236-239,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金高技术新概念项目 (5 9985 0 0 5 0 )
关键词
不对称波
附加质量
振动分析
压电驱动
dissymmetry wave
appending mass
vibration analysis
piezoelectricity drive
