一种新型压电叠层悬臂谐振液压泵

B. Vasuki, S. Sathiya, K. Suresh
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引用次数: 9

摘要

提出了一种新颖紧凑的压电层压悬臂梁驱动谐振液压泵模型。该泵由简单的元件组成,如一根管子和一个止回阀(NRV)作为连接到一段油管的井下组件,以及一个压电驱动器。其工作原理是基于立管内水柱的惯性。水通过NRV从容器中抽出,并通过快速上下运动增加油管中的液柱水头。压电致动器通过与安装在其尖端的管子以共振频率振动悬臂梁来产生这种运动。连接闭环电子电路,使振动保持在谐振频率,使泵定时排水。这种简单的泵送机构和压电驱动器的优点,如低噪声产生和易于小型化,使这种泵适合一些重要的应用在生物医学工程和电子冷却系统中的军事应用。对所提出的泵的特性进行了测量,并用仿真结果进行了验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A new piezoelectric laminated cantilever resonance based hydraulic pump
A novel and compact model of resonance based hydraulic pump actuated by piezoelectric laminated cantilever beam is presented. This proposed pump comprises of simple elements such as a tube and a Non-Return Valve (NRV) as a down-hole component connected to a length of the tubing, and a piezoelectric actuator. The operating principle is based on the inertia of water column within the riser tubing. The water is drawn from the container through NRV and it increases the liquid column head in the tubing by rapid up and down movements. The piezoelectric actuator produces this movement by vibrating the cantilever beam in resonant frequency with the tube mounted on its tip. The closed loop electronic circuit is connected to maintain the vibration at resonant frequency, so that the pump can discharge the water at regular intervals of time. This simple pumping mechanism and the advantages of piezoelectric actuator such as lower noise generation and ease of miniaturization make this pump suitable for some important applications in biomedical engineering and electronics cooling systems in military applications. The characteristics of the proposed pump are measured and verified with simulated results.
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