To solve the problem of the conflict between volume and power of a small fuze physical power supply, the structure of a small airflow vibration piezoelectric generator was presented, and the experimental system was established to study the output performance of the generator. The prototype was tested, the sound pressure and the output voltage were measured, and the vibration frequency, the output power and the energy conversion efficiency were analyzed. The results show that the sound pressure follows a sinusoidal pattern, the amplitude of the pressure increases linearly with the airflow velocity within the interesting range of airflow velocity. The frequency of the pressure is up to 6 kHz and it is stable within 9%. Piezoelectric transducer works in linear segments, the amplitude of output voltage is proportional to that of the pressure, and they have the same frequency, which are consistent with the energy conversion principle of the vibrationbased piezoelectric generator. A maximum power of 85 mW could be attained when the load resistance R is 3 kΩ. The efficiency of conversion from airflow to electric power of the generator is 1.2‰. It has the advantages of simple structure, small volume, high vibration frequency and non moving component, which is worth further studies.
邹华杰1,2，张波1，陈荷娟2，张江华1,王泽平1. 引信小型气流激振压电发电机实验研究[J]. 振动与冲击, 2018, 37(12): 35-40.
ZOU Huajie1,2,ZHANG Bo1,CHEN Hejuan2,ZHANG Jianghua1,WANG Zeping1. An experimental study on small airflow vibration piezoelectric generators for fuze. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(12): 35-40.
[1] S.Priya, D. J. Inman. Energy Harvesting Technologies [M]. Springer, 2009: 26-27.
[2] 李映平．引信压电发电机原理及试验研究[D]．南京：南
京理工大学，2006．
Li Yingping．The principle of fuze piezoelectric power supply and experimental investigations[D]．Nanjing: Nanjing University of Science and Technology，2003．(in Chinese)
[3] 何鹏．引信新型弹载发电机气流控制进气口内流场数值模拟[D]． 南京：南京理工大学，2012．
He Peng．Numerical simulation of airflow control inlet internal flow field of fuze on-boarded generator [D]．Nanjing： Nanjing university of science & technology， 2012．(in Chinese)
[4] 吕娜．引信新型弹载气动压电发电机气流控制进气道数值模拟[D]．南京：南京理工大学，2012．
Lv Na．Numerical simulation of airflow control inlet of fuze on-boarded generator [D]．Nanjing：Nanjing university of science & technology，2012．(in Chinese)
[5] Li Fei．Numerical analysis of vortex shedding behavior of piezoelectric microgenerator from dynamic airflow induced vibration[J]．Advanced Materials Research，2013， 694：1595～1601．
[6] 邹华杰，陈荷娟，赖长缨，孙剑韬，姜琦．微环音气流压电发电机声管固定方法[J]．探测与控制学报，2014, 36(3)：25-30.
Zou Huajie，Chen Hejuan．Fixation methods of sound tube of micro ringtone airflow piezoelectric generator[J]．Journal of Detection & Control，2014, 36(3)：25-30．(in Chinese)
[7] 邹华杰，陈荷娟，梁医．引信振动压电发电机气流致声振源特性研究[J]．兵工学报，2015, 36(4)：610-618．
Zou Huajie，Chen Hejuan，Liang Yi．Study of Airflow-induced Acoustic Characterization of Fuze Vibration Piezoelectric Generator [J]．Journal of Acta Armamentarii，2015,36(3)：610-619． (in Chinese)
[8] 黎晖，高敏，王广龙．引信用压电式射流发电机的原理与研究[J]．电源技术，2009，33(12)：1120-1122．
LI Hui，GAO Min，WANG Guang-long．Principle and analysis of piezoelectric fluidic generator for fuze[J]．Power Technology，2009，33(12)：1120-1122．(in Chinese)
[9] 雷军命．引信气流谐振压电发电机[J]．探测与控制学报，2009，31(1)：23-26．
LEI Jun-ming．An Air-driven Fluidic Resonance Piezoelectric Generator for Fuze [J]．Journal of Detection & Control，2009，31(1)：23-26．(in Chinese)
[10] 徐伟，王炅，陆静．引信用MEMS气流谐振压电发电机[J]．探测与控制学报，2011，33(1)：9-13．
XU Wei，WANG Jiong，LU Jing．MEMS Air-driven Fluidic
Resonance Piezoelectric Generator for Fuze [J]．Journal of Detection & Control，2011，33(1)：9-13．(in Chinese)
[11] 何琳，朱海潮，邱小军．声学理论与工程应用[M]．北京：科学出版社，2006：81－84．
He Lin，Zhu Haochao，Qiu Xiaojun．Acoustic theory and engineering application[M]．Beijing：Science Press， 2006：81－84．(in Chinese)
[12] R．D．Blevins．Flow-induced Vibration[M]．Cambridge University Press，Cambridge，1979．
[13] 马大猷． 现代声学理论基础[M]．北京：科学出版社，2004：296～306．
Ma Dayou．Modern acoustic theory foundation [M]．Beijing：Science Press，2004．(in Chinese)
[14] 陈仁文．新型环境能量采集技术[M]．北京：国防工业出版社，2011．
Chen Renwen．New ambient energy harvesting technology[M]．Beijing：National Defense Industry Press，2011．(in Chinese)
