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Energy harvesting from raceway strain in rolling element bearings
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0002-7285-6639
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0002-4133-3317
(English)In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220Article in journal (Refereed) Submitted
Abstract [en]

This paper presents how strain in rolling element bearings can be utilized to power embedded systems. Mechanical strain can be converted to the electrical domain by using piezoelectric materials; here, we present how piezoelectric patches should be dimensioned and mounted to optimize power output. Previous work has not addressed how repetitive strain in bearings can be used to harvest energy. Simulation data from the SKFtool BEAST are analyzed together with linear piezoelectricity to extract the power output. In the simulated case, results show that piezoelectric patches can be used to power embedded systems and that sensory data can be extracted to monitor the bearings.

Keywords [en]
Rolling element bearing, Energy scavenging, Piezoelectric, IoT
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-69574OAI: oai:DiVA.org:ltu-69574DiVA, id: diva2:1219053
Available from: 2018-06-15 Created: 2018-06-15 Last updated: 2018-09-06

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Häggström, FredrikHultqvist, TobiasDelsing, Jerker

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