| 吴斌*,刘麒,焦敬品,何存富.调谐兰姆波在模态控制中的实验研究[J].实验力学,2011,26(6):639~644 |
| 调谐兰姆波在模态控制中的实验研究 |
| Experimental Research of Lamb Wave Tuning in Model Control |
| 投稿时间：2011-11-03 修订日期：2011-12-06 |
| DOI： |
| 中文关键词: 兰姆波 频率调谐 多模态 无损检测 |
| 英文关键词:Lamb wave frequency tuning multi-model nondestructive testing |
| 基金项目:国家自然科学基金(10972014)资助 |
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| 中文摘要: |
| 兰姆波模态调谐是指在确定的压电传感器条件下,通过频率选择实现单一兰姆波模态检测的方法。本文在兰姆波模态调谐的理论指导下,实现了单一兰姆波模态激励和调控。同时,研究了实验条件,如粘接剂性能和传感器上粘结位置对兰姆波调谐模态控制的影响。结果表明,对于不同的粘接剂,固化后硬度越高,其实验结果与理论结果的一致性越好；对于同一种粘接剂,边缘位置的粘贴会使非对称模态应力幅值增大,从而对模态调控的实现造成一定的影响。 |
| 英文摘要: |
| Lamb wave mode tuning refers to a single-mode Lamb wave testing method via frequency selection under the condition of piezoelectric transducer with certain size. The excitation and control of single-mode Lamb wave was implemented by zuthors based on the theory of Lamb wave tuning. At the same time, the effect of adhesive property and bonding position on transducer on the Lamb wave tuning controlling was experimentally studied. Results show that for different kinds of adhesive, after solidified, the stiffer the adhesive layer is, the better coherence between the experimental and the theoretical is. While for the same adhesive, the bonding at the edge of piezoelectric transducer may produce certain effect on lamb wave mode tuning due to the asymmetric mode stress amplitude increasing. |
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