• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Motion and Vibration Control >Theoretical investigation into tunable band gaps of an Euler-Bernoulli beam with 2DOF LR structures
【24h】

Theoretical investigation into tunable band gaps of an Euler-Bernoulli beam with 2DOF LR structures

机译：2DOF LR结构的Euler-Bernoulli光束可调带间隙的理论研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper is concerned with an intelligent phonotic crystals (IPC) consisting of an Euler-Bernoulli beam attached with 2DOF locally resonant (LR) structures. The novel design of the dielectric electroactive polymer (DEAP) rings acting as the springs of oscillators is presented that could be employed to control the transmission of flexural waves on the beam. Tunable band gaps (BGs) can be realized by changing the stiffness of each oscillator driven by the external electric field, where the DEAPs transform electric energy directly into mechanical work under the applied voltage. Discrete copper (Cu) strips are then attached to the DEAP to allow the deformation of DEAP rings. The transfer matrix (TM) theory is adopted to assist readers to better understand the formation of the BG. Simulation results show that this particular configuration is effective for attenuating the flexural waves at low frequencies below 1000Hz where the tunable BGs may occur. Moreover, it is found that a wider BG can be achieved and shifts towards higher frequencies by increasing the applied voltages.
机译：本文涉及一种智能语音晶体（IPC），由欧拉-Bernoulli梁组成，该欧拉-Bernoulli梁由局部谐振（LR）结构连接。介绍了作为振荡器的弹簧的介电电活性聚合物（DEAP）环的新颖设计，其可以采用来控制梁上的弯曲波的透射。可以通过改变由外部电场驱动的每个振荡器的刚度来实现可调谐带间隙（BGS），其中DEAPS将电能直接变成施加的电压下的机械工作。然后将离散的铜（Cu）条连接到Deap上，以允许Deap环的变形。采用转移矩阵（TM）理论来帮助读者更好地理解BG的形成。仿真结果表明，该特定配置对于在低于1000Hz以下的低频下衰减弯曲波是有效的，在那里可能发生可调谐BG。此外，发现可以通过增加所施加的电压来实现更宽的BG并朝向更高的频率移动。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号