Sound Energy Control of Semi-active Piezoelectric Composite Level-Based System

摘要：

This paper mainly talks about the physical model of rubber/PVDF semi-active piezoelectric composite level-based system, and the calculation method of sound energy loss of the system is studied too. The principle of impedance matching in piezoelectric layer, and the implementation method of connecting piezoelectric layer with an external loss circuit (negative component circuit). By simulation, the system of PVDF layer connected with an external loss circuit is simplified as RC series circuit. Considering sound absorption, the performance of this system is better than the same thick rubber in each frequency channel. Finally, the methods to improve the absorption properties of this system is given.

关键词： control system of sound energy loss piezoelectric material piezoelectric damp loss sound impedance matching

作者: Wang Yuming He Yuanan

作者单位: National Laboratory of Underwater Acoustic Technique Harbin Engineering University Harbin, China Systems Engineering Research Institute Beijing, China

会议类型: 国际会议

会议名称: 2011 3rd IEEE International Conference on Computer Research and Development(ICCRD 2011)(2011第三届计算机研究与发展国际会议)

会议地点: 上海

会议语种:英文

页码: 145-149

在线出版日期: 2011-03-11（万方平台首次上网日期，不代表论文的发表时间）