An improved resonantly driven piezoelectric gas pump

	An improved resonantly driven piezoelectric gas pump
	Wu Y.; Liu Y.; Liu J.; Wang L.; Jiao X.; Yang Z.
	2013
发表期刊	Journal of Mechanical Science and Technology
ISSN	ISBN/1738494X
卷号	27 期号:3
摘要	Piezoelectric pumps have the potential to be used in a variety of applications, such as in air circulation and compression. However, piezoelectric membrane pumps do not have enough driving capacity, and the heat induced during the direct contact between the driving part and the gas medium cannot be dissipated smoothly. When the gas is blocked, the piezoelectric vibrator generates heat quickly, which may eventually lead to damage. Resonantly driven piezoelectric stack pumps have high performance but no price advantage. In this situation, a novel, resonantly driven piezoelectric gas pump with annular bimorph as the driver is presented. In the study, the working principle of the novel pump was analyzed, the vibration mechanics model was determined, and the displacement amplified theory was studied. The outcome indicates that the displacement amplification factor is related with the original displacement provided by the piezoelectric bimorph. In addition, the displacement amplification effect is related to the stiffness of the spring lamination, adjustment spring, and piezoelectric vibrator, as well as to the systematic damping factor and the driving frequency. The experimental prototypes of the proposed pump were designed, and the displacement amplification effect and gas output performance were measured. At 70 V of sinusoidal AC driving voltage, the improved pump amplified the piezoelectric vibrator displacement by 4. 2 times, the maximum gas output flow rate reached 1685 ml/min, and the temperature of the bimorph remained normal after 2000 hours of operation when the gas medium was blocked. 2013 The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg.
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/40708
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wu Y.,Liu Y.,Liu J.,et al. An improved resonantly driven piezoelectric gas pump[J]. Journal of Mechanical Science and Technology,2013,27(3).
APA	Wu Y.,Liu Y.,Liu J.,Wang L.,Jiao X.,&Yang Z..(2013).An improved resonantly driven piezoelectric gas pump.Journal of Mechanical Science and Technology,27(3).
MLA	Wu Y.,et al."An improved resonantly driven piezoelectric gas pump".Journal of Mechanical Science and Technology 27.3(2013).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Wu-2013-An improved （447KB）			开放获取	CC BY-NC-ND	浏览下载