基于Cymbal单元的压电复合智能材料设计  

Design of cymbal-based piezocomposite smart material

作　　者：唐俊[1] 王同庆[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《功能材料与器件学报》2010年第5期465-470,共6页Journal of Functional Materials and Devices

基　　金：国防基础研究项目(J1300A002)

摘　　要：本文使用有限元法对Cymbal换能器单元的设计结构进行了仿真分析,并将换能器单元谐振频率与实际测量值进行了比较。将Cymbal换能器单元进行阵列,设计了一种新型的10kHz以下的低频薄板水声智能材料。对两块不同尺寸和结构的Cymbal压电复合智能材料的发射性能进行了测量与标定。并将用Cymbal压电复合智能材料作为主动吸声系统中的吸声材料,在脉冲声管中进行了管道声有源吸声控制实验。研究结果表明,Cymbal压电复合智能材料是一种高效的薄型低频宽带水声材料。This paper analyzes the geometry of the Cymbal transducer cell with finite element method.The simulation result is compared with that of the actual value.In this study,through array the Cymbal transducer cell,a new thin panel underwater acoustic smart material which suited for use at low frequencies below 10 kHz is designed.The acoustic emission properties of two piceces of Cymbal piezocomposite smart material with different sizes and structure have been measured and calibrated.The experimental research of active duct noise control in the the pulse tube is accomplished,in which a piece of Cymbal piezocomposite smart material is used as the absorption material.The results indicate that the Cymbal piezocomposite smart material is a thin,low frequency,broadband and high power underwater active noise absorption material which built by Cymbal transducer array.

关 键 词：CYMBAL 压电智能材料 水声 有源控制 

分 类 号：TB535[理学—物理] TB381[理学—声学]