A discretized multi-freedom-degree model for predicting the lowest local resonant gap in phononic structures
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- A discretized multi-freedom-degree model for predicting the lowest local resonant gap in phononic structures
- 发表刊物：
- Journal of Vibration and Control
- 摘要：
- In this paper, a discretized multi-freedom-degree (DMFD) model is presented to predict the lowest locally resonant (LR)
band gap in phononic structures. The DMFD model is adopted to improve the accuracy and the application of previous
conventional prediction models. Firstly, the model is applied to the one-dimensional ternary LR structure to show the
improvement in precision that is independent of the decrease of the density of the scatterer. Then, the model is extended to the evaluation of the resonance frequencies in a two-dimensional binary LR structure, and the estimates from the present model, which are in good agreement with the previous results, verify our model. Each parameter in the
DMFD model allows a clear physical insight into the band-gap mechanism. This model could provide a pre-estimation of
the lowest gap of binary and ternary LR structures.
- 合写作者：
- Lixia Li, Tianning Chen, Jiuhui Wu, X P Wang
- 卷号：
- Vol.19, No.9
- 页面范围：
- 000
- 是否译文：
- 否
- 发表时间：
- 2013-03-01