Enhancing power harvesting using a tuned auxiliary structure

被引:110
作者
Cornwell, PJ [1 ]
Goethal, J
Kowko, J
Damianakis, M
机构
[1] Rose Hulman Inst Technol, Dept Mech Engn, Terre Haute, IN 47803 USA
[2] Univ Calif Berkeley, Dept Civil Engn, Berkeley, CA 94704 USA
[3] Univ Illinois, Dept Aerosp Engn, Urbana, IL 61801 USA
[4] Georgia Inst Technol, Dept Mech Engn, Atlanta, GA 30332 USA
关键词
power harvesting; structural health monitoring;
D O I
10.1177/1045389X05055279
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Future, self-contained sensors and processing units will need onboard, renewable power supplies to be truly autonomous. One way of supplying such power is through energy harvesting, a process by which ambient forms of energy are converted into electricity. One energy harvesting technique involves converting kinetic energy, in the form of vibrations, into electrical energy through the use of piezoelectric materials. This study examines the use of auxiliary structures, consisting of a mechanical fixture and a lead zirconate/lead titanate (PZT) piezoelectric element, which can be attached to any vibrating system. Adjusting various parameters of these structures can maximize the strain induced in the attached PZT element and improve power output.
引用
收藏
页码:825 / 834
页数:10
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