Broad-Band Vibro-Impacting Energy Harvester

Author:

Moss Scott D.1,Powlesland Ian1,Konak Michael1,Barry Alex1,Galea Steve C.1,Carman Gregory2

Affiliation:

1. Defence Science and Technology Organization

2. UCLA

Abstract

The certification of retro-fitted structural health monitoring (SHM) systems for use on aircraft raises a number of challenges. One critical issue is determining the optimal means of supplying power to these systems, given that access to the existing aircraft power-system is likely to be problematic. Other conventional options such as primary cells can be difficult to certify and would need periodic replacement, which in an aircraft context would pose a serious maintenance issue. Previously, the DSTO has shown that a structural-strain based energy harvesting approach can be used to power a device for SHM of aircraft structures. Acceleration-based energy harvesting from airframes is more demanding (than a strain based approach) since the vibration spectrum of an aircraft structure varies dynamically with flight conditions, and hence a frequency agile or (relatively) broad-band device is often required to maximize the energy harvested. This paper reports on the development of a prototype vibro-impacting energy harvester with a ~59 gram flying mass and two piezoelectric bimorph-stops. Over the frequency range 29-41 Hz using a continuous-sine 450 milli-g r.m.s. excitation, the harvester delivers an average of 5.1 mW. From a random band-passed 25-45 Hz excitation with r.m.s. 450 milli-g, the average harvester output is 1.7 mW.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference7 articles.

1. S. Moss, I. Powlesland, S. Galea, G. Carman: Proc. SPIE 7643-47 (2010).

2. S. C. Galea, S. van der Velden, S. Moss, I. Powlesland, in: Encyclopaedia of Structural Health Monitoring, edited by C. Boller, F. Chang and Y. Fujino, chapter 76, John Wiley and Sons (2009).

3. D. E. Adams: Health Monitoring of Structural Materials and Components, John Wiley and Sons, (2007), p.4.

4. T. E. Starner, J. A. Paradiso, in: Low-Power Electronics Design, edited by C. Piguet, chapter 45, CRC Press, (2004).

5. V. I. Babitsky: Theory of Vibro-Impact Systems and Applications, Springer, (1998), pp.47-236.

Cited by 6 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3