15 April 2016 A review of piezoelectric-based electrical energy harvesting methods and devices for munitions
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Abstract
This paper presents a review of piezoelectric based energy harvesting devices and their charge collection and storage electronics for use in very harsh environment of gun-fired munitions. A number of novel classes of such energy-harvesting power sources that have been developed for gun-fired munitions and similar applications, including one with integrated safety and firing setback event detection electronics and logic circuitry. The power sources are designed to harvest energy from firing acceleration and vibratory motions during the flight. As an example, the application of the developed piezoelectric based energy harvesting devices with event detection circuitry to the development of self-powered initiators or switching devices with full no-fire safety circuitry for protection against accidental drops, transportation vibration, and other similar low amplitude accelerations and/or high amplitude but short duration acceleration events is presented. The designs allow the use of a very small piezoelectric elements, thereby making such devices to be highly miniaturized. These devices can be readily hardened to withstand very high G firing setback accelerations in excess of 100,000 G and the harsh firing environments. The design of prototypes and testing in shock loading machines, air guns and actual firing are presented.
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Jahangir Rastegar, Jahangir Rastegar, Carlos M. Pereira, Carlos M. Pereira, Dake Feng, Dake Feng, } "A review of piezoelectric-based electrical energy harvesting methods and devices for munitions", Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 97992M (15 April 2016); doi: 10.1117/12.2218747; https://doi.org/10.1117/12.2218747
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