Effect of temperature of vibrations of physically non linear piezoelectric rods

V. Birman (1) , E. Suhir (2)

1 Mizzou - University of Missouri [Columbia]
2 UC Santa Cruz - University of California [Santa Cruz]

The paper is concerned with a physically nonlinear behavior of piezoelectric rods. Such rods are often employed as transducers. We evaluate the effect of a uniformly distributed temperature on vibrations of a piezoelectric rod polarized in the axial direction and subjected to a harmonic (periodic-in-time) electric field. We conclude that temperature can significantly affect vibrations of a physically nonlinear transducer in a broad spectrum of frequencies. It is also shown that physical nonlinearity has a strong effect on the dynamic response of piezoelectric rods to alternating electric fields, especially in the vicinity of the resonance frequency and at high power fields.

Mots clés: Coupled (Thermo-mechanical; Thermo-optical; etc.) Effects; High Temperature Electronics

Domaines: Architectures Matérielles [cs.AR]

V. Birman, E. Suhir. Effect of temperature of vibrations of physically non linear piezoelectric rods. THERMINIC 2005, Sep 2005, Belgirate, Lago Maggiore, Italy. pp.180-190. ⟨hal-00189472⟩