| 矩形厚板的三维耦合超声振动及其等效电路 |
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| 引用本文： | 林书玉,张福成.矩形厚板的三维耦合超声振动及其等效电路[J].陕西师范大学学报,1991(2). |
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| 作者姓名： | 林书玉 张福成 |
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| 作者单位： | 陕西师大应用声学研究所，陕西师大应用声学研究所 |
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| 摘 要： | 1 三维耦合超声频振动设矩形厚板的x,y,z三个坐标轴分别沿着厚板的三个几何对称轴,l_x,l_y,l_z为其三个轴向长度。根据弹性力学原理,厚板内任一点的轴向应力σ_x,σ_y,σ_z和轴向应ε_x,ε_y,ε_z之间的关系为σ_x=
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Three-dimension coupled vibration of a thick rectangular plate and its equivalent circuit |
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| Lin Shuyu Zhang Fucheng.Three-dimension coupled vibration of a thick rectangular plate and its equivalent circuit[J].Journal of Shaanxi Normal University: Nat Sci Ed,1991(2). |
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| Authors: | Lin Shuyu Zhang Fucheng |
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| Institution: | Applied Acoustics Institule |
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| Abstract: | The three-dimension coupled ultrasonical vibration of a thick rectangular plate is studied by using the apparent elasticity method with its resonant frequency equation deduced. On the basis of piezoelectric effect in piezoelectricity, the equivalent circuit of the thick rectangular plate is derived, where the poisson effect is analogized to piezoelectric effect. The experiments show that the calculated frequencies agree very well with the measured ones, and the thick rectangular plate has plenty of resonant frequencies. Therefore the rectangular plate will find many uses in developing wide bandwidth radiating ultrasonical sources. |
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| Keywords: | apparent elasticity method coupled vibration equivalent circuit resonant frequency |
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