文献类型：会议论文

英文题名：Research on the close noise field of the piezoelectric pump

作者：Jizhuang, Lu[1]; Jianhui, Zhang[1]; Shouyin, Wang[2]; Qixiao, Xia[3]; Desheng, Li[1]

第一作者：Jizhuang, Lu

通讯作者：Jizhuang, L.

机构：[1] College of Mechanical Engineer and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China; [2] Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130022, China; [3] College of Mechanical and Electronic Engineer, Beijing Union University, Beijing 100020, China

第一机构：College of Mechanical Engineer and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China

通讯机构：[1]College of Mechanical Engineer and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China

会议论文集：2006 IEEE International Conference on Mechatronics and Automation, ICMA 2006

会议日期：June 25, 2006 - June 28, 2006

会议地点：Luoyang, China

语种：英文

外文关键词：Bending strength - Computer simulation - Spurious signal noise - Vibrations (mechanical) - Vibrators

摘要：Restraining the noise, meanwhile, improving the dynamic characteristics of the driving power of piezoelectric pump effectively are the final purposes of doing research on the reciprocating and flexural vibration of the piezoelectric vibrator. However, among many papers regarding piezoelectric pump, there are very few papers about the research on the noise of piezoelectric pump. This is far less than the research on the application of the piezoelectric pump in other fields. In this paper, the research on the flexural vibration deformation and vibration radiation noise of the piezoelectric vibrator are carried out. Firstly, the vibration equations of the piezoelectric vibrator are built and flexural vibration deformation function is deduced. Then, the simplified vibration model of the piezoelectric vibrator is introduced by using vibration theories of micro-area piston. Furthermore, theoretical calculation equations of sound pressure in close noise field and noise contribution equation of fluid in pump are deduced. Finally, a comparison is made between the theoretical calculation value and experimental value, and the contribution quantities of the piezoelectric vibrator and fluid in pump are obtained respectively under different frequencies. The consequence approves that the theory introduced by this research is true. ? 2006 IEEE.