1. Vibration Attenuation Optimization in a Rod With Different Periodic Piezoelectric Shunting Configurations.
- Author
-
Hui Guo, Yaru Zhang, Tao Yuan, Pei Sun Qian, Qian Cheng, and Yansong Wang
- Subjects
BAND gaps ,THEORY of wave motion ,ELASTIC wave propagation ,GENETIC algorithms ,PIEZOELECTRIC composites ,ELASTIC waves - Abstract
Wave propagation control in piezoelectric meta-materials has been extensively investigated in recent years due to its significant effects on elastic wave attenuation. In this work, a novel piezoelectric meta-material rod connected to three configurations of shunting circuits is proposed for broad band gaps. The numerical model is constructed to predict the band gap, attenuation constant, and vibration transmission. For larger attenuation within the band gaps, the shunting circuit parameters are optimized with a genetic algorithm. The result shows that the structure with the optimized parameters provides prominent vibration control ability. Both the attenuation constant and the width of the band gaps are enlarged. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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