pp. 631-636
S&M1218 Research Paper of Special Issue https://doi.org/10.18494/SAM.2016.1276 Published: June 22, 2016 Nonlinear Magneto-Electric Response of Giant Magnetostrictive-Piezoelectric Composite Sensors Subjected to Harmonic and Colored Noise Excitation [PDF] Jia Xu, Yingxiao Kong, Hongli Wang, and Zhiwen Zhu (Received February 27, 2015; Accepted January 14, 2016) Keywords: giant magnetostrictive materials, piezoelectric ceramics, hysteretic nonlinearity, magnetoelectric response, colored noise
Nonlinear magneto-electric response characteristics of a giant magnetostrictive-piezoelectric composite sensor subjected to harmonic and colored noise magnetic excitation are discussed in this paper. A nonlinear dynamic model for such a sensor has been developed. The expression of the system’s dynamic response was obtained, and the bifurcation conditions were determined. Finally, the effects of the system parameters on the dynamic characteristics were analyzed. The results of numerical simulation and experiments show that the stochastic noise intensity has an important influence on the system’s dynamic response, and the stochastic resonance phenomenon occurs as the stochastic noise intensity varies. The results of this study are helpful for achieving the optimal design and improvement of giant magnetostrictive-piezoelectric composite sensors.
Corresponding author: Zhiwen ZhuCite this article Jia Xu, Yingxiao Kong, Hongli Wang, and Zhiwen Zhu, Nonlinear Magneto-Electric Response of Giant Magnetostrictive-Piezoelectric Composite Sensors Subjected to Harmonic and Colored Noise Excitation, Sens. Mater., Vol. 28, No. 6, 2016, p. 631-636. |