Vibration analysis and pull-in instability behavior in a multiwalled piezoelectric nanosensor with fluid flow conveyance

• Sayyid H. Hashemi Kachapi

Beilstein J. Nanotechnol. 2020, 11, 1072–1081, doi:10.3762/bjnano.11.92

• constants, residual stress, piezoelectric constants and mass density, are considered for analysis of the dimensionless natural frequency with respect to the viscous fluid velocity and pull-in voltage of the FC-MWPENSs. Keywords: electrostatic excitation; piezoelectric nanosensor; pull-in voltage; stability

• reader, all notation and symbols are presented in Table 1. Mathematical Formulation A schematic diagram of a multiwalled piezoelectric nanosensor with an embedded fluid-conveying inner layer, two piezoelectric layers, and a viscoelastic foundation medium in the outer layer is shown in Figure 1a–c. The

• multiwalled piezoelectric nanosensor are studied for analysis of the dimensionless natural frequency with respect to viscous fluid velocity and pull-in voltage The piezoelectric nanosensor is simultaneously subjected to direct electrostatic DC voltage with nonlinear excitation, nonlinear van der Waals