Wave propagation in a piezoelectric rod of 6 mm symmetry

作者：Wei JP^*; Su XY

来源：International Journal of Solids and Structures, 2005, 42(13): 3644-3654.

DOI：10.1016/j.ijsolstr.2004.11.016

• self-adjoint method
• piezoelectric rod
• dispersion curves

The wave propagation in a piezoelectric rod of 6 mm symmetry is investigated by applying a 3-D piezoelectric elastic model. A self-adjoint method is introduced to solve this problem, this method avoids calculating the generalized eigen-value equation, it completely draws the dispersion curves in the forms of Quasi-P wave, Quasi-SV wave and Quasi-SH wave under the self-adjoint boundary condition, and it can evaluate the dispersion curves of all kinds of boundary conditions. As an example, the dispersion curves of PLT-5H are completely drawn, we also found the Quasi-SV wave has standing wave phenomenon in the PLT-5H rod. In addition the relation of dispersion curves among different boundary conditions is discussed, and an experiment method is introduce to decide the dispersion curves for another boundary conditions.

• 出版日期2005-6
• 单位北京大学