Research on the Dynamic Characteristics of the Actuator of Valveless Piezoelectric Pump with Y-shape Tubes for Medical Use
The valveless piezoelectric pump with Y-shape tubes(VPPYT) is a new type of piezoelectric pump,it is designed for blood or fluid transfusion in such areas as medical treatment,sanitation and health care,so its driver-the piezoelectric actuator should meet the needs of the medical environment.Then,theoretical analysis is applied on the actuator,and formulas for the calculation of inherent frequency & maximum displacement of the piezoelectric actuator are deduced,the correctness of theoretical analysis is proved thereafter.Finally,base on the theoretical analytical model,the effects of geometrical parameters and material characteristic parameters on the actuator performance have been investigated.The analytical results reveal that the diameter ratio and thickness ratio of PZT/base layer should be near 0.75 and smaller than 1.0 respectively.The research provides a good reference for optimizing the design and manufacture of other types of piezoelectric pump.
piezoelectric pump piezoelectric actuator inherent frequency FEM
Yili Li Jianhui Zhang Desheng Li
College of Mechanical Engineer & Applied Electronics Technology,Beijing University of Technology,Bei Research Center of ultrasonic Motor,Nanjing University of Aeronautics & Astronautics,Nanjing,CHINA
国际会议
南京
英文
189-196
2007-09-09（万方平台首次上网日期，不代表论文的发表时间）