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Proceedings Paper

Power harvesting and management from vibrations: a multi-source strategy simulation for aircraft structure health monitoring
Author(s): Hugo Durou; Carole Rossi; Magali Brunet; Claude Vanhecke; Nicolas Bailly; Gustavo Ardila; Lamine Ourak; Adrien Ramond; Patrice Simon; Pierre-Louis Taberna
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Paper Abstract

Vibration harvesting has been intensively developed recently and systems have been simulated and realized, but real-life situations (including aircraft Structure Health Monitoring (SHM)involve uneven, low amplitude, low frequency vibrations. In such an unfavorable case, it is very likely that no power can be harvested for a long time. To overcome this, multi-source harvesting is a relevant solution, and in our application both solar and thermal gradient sources are available. We propose in this paper a complete Microsystem including a piezoelectric vibration harvesting module, thermoelectric conversion module, signal processing electronics and supercapacitor. A model is proposed for these elements and a VHDL-AMS simulation of the whole system is presented, showing that the vibration harvesting device alone cannot supply properly a SHM wireless node. Its role is nevertheless important since it is a more reliable source than thermoelectric (which depends on climatic conditions). Moreover, synergies between vibration harvesting and thermoelectric scavenging circuits are presented.

Paper Details

Date Published: 30 December 2008
PDF: 10 pages
Proc. SPIE 7268, Smart Structures, Devices, and Systems IV, 726810 (30 December 2008); doi: 10.1117/12.810927
Show Author Affiliations
Hugo Durou, LAAS-CNRS, Univ. de Toulouse (France)
Carole Rossi, LAAS-CNRS, Univ. de Toulouse (France)
Magali Brunet, LAAS-CNRS, Univ. de Toulouse (France)
Claude Vanhecke, Thalès Alenia Space (France)
Nicolas Bailly, LAAS-CNRS, Univ. de Toulouse (France)
Gustavo Ardila, LAAS-CNRS, Univ. de Toulouse (France)
Lamine Ourak, LAAS-CNRS, Univ. de Toulouse (France)
Adrien Ramond, LAAS-CNRS, Univ. de Toulouse (France)
Patrice Simon, Univ. de Toulouse, UMR 5085 CNRS, UPS, INPT (France)
Pierre-Louis Taberna, Univ. de Toulouse, UMR 5085 CNRS, UPS, INPT (France)

Published in SPIE Proceedings Vol. 7268:
Smart Structures, Devices, and Systems IV
Said Fares Al-Sarawi; Vijay K. Varadan; Neil Weste; Kourosh Kalantar-Zadeh, Editor(s)

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