| Related citation: | Congyun Zhu,Jigao Niu,Fujie Lu,Huifu Xing,Guofang Ding.Research on the Sound Characteristic in the Active Sound Absorption and Isolation of the Piezoelectric Ceramics[J].Journal of Harbin Institute Of Technology(New Series),2017,24(3):81-88.DOI:10.11916/j.issn.1005-9113.16084. |
|
| Author Name | Affiliation | | Congyun Zhu | School of Mechanical Science & Engineering, Zhongyuan University of Technology, Zhengzhou 450007,China | | Jigao Niu | School of Mechanical Science & Engineering, Zhongyuan University of Technology, Zhengzhou 450007,China | | Fujie Lu | School of Mechanical Science & Engineering, Zhongyuan University of Technology, Zhengzhou 450007,China | | Huifu Xing | School of Mechanical Science & Engineering, Zhongyuan University of Technology, Zhengzhou 450007,China | | Guofang Ding | School of Mechanical Science & Engineering, Zhongyuan University of Technology, Zhengzhou 450007,China |
|
| Abstract: |
| The sound characteristic of the piezoelectric ceramics is posed for the excellent mechanic and electric coupling performance of piezoelectric material. Two pieces of piezoelectric ceramic are used as materials of active absorption and active isolation, two pieces of PVDF with equal distance are placed in the front of the material in order to measure the incidence plane wave and the reflected wave, the voltages are applied on the surface of the material in order to make the reflected wave and transmission wave be zero using the adaptive controlling. At last, emulation is carried out with plane wave, and good absorption and isolation effect is achieved. |
| Key words: active absorption active isolation piezoelectric material |
| DOI：10.11916/j.issn.1005-9113.16084 |
| Clc Number:TB535+2 |
| Fund: |
|
| Descriptions in Chinese: |
| 压电复合材料的声学特性的理论研究 朱从云，牛继高，鲁付杰，邢会府，丁国芳 （中原工学院 机电学院） 中文摘要：压电复合材料具有良好的力电耦合性能，被广泛用于诸如传感器，换能器，制动器等的主体材料，可以应用于振动与噪声的控制。基于此，本文用一片压电材料作为主动吸声系统中的吸声材料，通过布置于压电材料正前方的两个PVDF（Poly Vinylidene Fluoride）传感器，检测出平面入射声波与反射声波，利用压电材料的压电性能，在两片压电材料上分别加电压，使得反射声波与透射声波为零，从而达到主动吸声与主动隔声的目的。在平面入射声波入射下，进行了实验，取得了较好的主动吸声与主动隔声效果。 关键词：主动吸声；主动隔声；压电复合材料 |
