A system of Mathieu–Hill equations have been obtained for the dynamic stability analysis of electrical graded piezoelectric circular cylindrical shells subjected to the combined loading of periodic axial compression and radial pressure and electric ?eld. Bolotin’s method is then employed to obtain the dynamic instability regions. It is revealed that the piezoelectric e?ect, the piezoelectric graded e?ect and the electric ?eld only have minor e?ect on the unstable region. In contrast, the geometric parameters, the rigidity of constituent materials and the external loading play a dominant role in determining the unstable region.
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机译:0.9K1-xNaxNbO3- 0.06LiNbO3-0.04SrTiO3 陶瓷压电性能温度稳定性研究 The Study of Piezoelectric Temperature Stability of 0.9K1-xNaxNbO3- 0.06LiNbO3-0.04SrTiO3Ceramics
机译:Closure to 'Using a Pressurized Shield to Increase Face Stability of Circular Tunnels in Purely Cohesive Soil' by Wantao Ding, Shucai Li, Keqi Liu, Jian Zhu, Mingjiang Li, and Peihe Shi