A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Piezoelectric energy harvesting from traffic-induced bridge vibrations
This paper focuses on energy harvesting from traffic-induced vibrations in bridges. Using a pre-stressed concrete highway bridge as a case study, in situ vibration measurements are presented and analysed. From these results, a prototype of a cantilever piezoelectric harvester is designed, tested and modelled. Even though the considered bridge vibrations are characterized by small amplitude and a low frequency (i.e. below 15 Hz), it is shown that mean power of the order of 0.03 mW can be produced, with a controlled voltage between 1.8 and 3.6 V. A simple model is proposed for theoretical prediction of the delivered power in terms of traffic intensity. This model shows good agreement with the experimental results and leads to a simple but effective design rule for piezoelectric harvesters to be used on bridges.
Piezoelectric energy harvesting from traffic-induced bridge vibrations
This paper focuses on energy harvesting from traffic-induced vibrations in bridges. Using a pre-stressed concrete highway bridge as a case study, in situ vibration measurements are presented and analysed. From these results, a prototype of a cantilever piezoelectric harvester is designed, tested and modelled. Even though the considered bridge vibrations are characterized by small amplitude and a low frequency (i.e. below 15 Hz), it is shown that mean power of the order of 0.03 mW can be produced, with a controlled voltage between 1.8 and 3.6 V. A simple model is proposed for theoretical prediction of the delivered power in terms of traffic intensity. This model shows good agreement with the experimental results and leads to a simple but effective design rule for piezoelectric harvesters to be used on bridges.
Piezoelectric energy harvesting from traffic-induced bridge vibrations
Peigney, Michael (author) / Siegert, Dominique (author)
Smart Materials and Structures ; 22 ; 095019/1-095019/11
2013
11 Seiten, 17 Quellen
Article (Journal)
English
Energy Harvesting , piezoelektrischer Vibrationsaufnehmer , Schwingungsanregung , Schwingungsenergie , Brücke (Bauwerk) , Spannbeton , Verkehrsanlage , Niederfrequenz , Vibrationsmessung , In-Situ-Messung , Versuchsaufbau , Versuchsbedingung , Falluntersuchung , freitragender Träger , Versuchsmuster , Modellsimulation , elektrische Leistung , Bauwerksüberwachung , Steuerspannung
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