It is observed that the amplitude of the vibrations increases as the external frequency Ωsi385_e approaches the natural frequency. However, the amplitude curves of the nonlinear problem move to the right, indicating a hardening nonlinear behavior, while two stable solutions are observed for some values of the excitation frequency. Moreover, due to the viscoelastic material, the vibrations are bounded contrary to the linear membrane problem. Fig. 5.19 presents the amplitude-frequency curves for various values of the viscous parameter ηsi386_e. The amplitude of ...

Get The Boundary Element Method for Plate Analysis now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.