Projects per year
Abstract
The exploitation of nonlinear behavior in vibration-based energy harvesters has received much attention over the last decade. One key motivation is that the presence of nonlinearities can potentially increase the bandwidth over which the excitation is amplified and therefore the efficiency of the device. In the literature, references to resonating energy harvesters featuring nonlinear oscillators are common. In the majority of the reported studies, the harvester powers purely resistive loads. Given the complex behavior of nonlinear energy harvesters, it is difficult to identify the optimum load for this kind of device. In this paper the aim is to find the optimal load for a nonlinear energy harvester in the case of purely resistive loads. This work considers the analysis of a nonlinear energy harvester with hardening compliance and electromagnetic transduction under the assumption of negligible inductance. It also introduces a methodology based on numerical continuation which can be used to find the optimum load for a fixed sinusoidal excitation.
Original language | English |
---|---|
Pages (from-to) | 1757-1770 |
Number of pages | 14 |
Journal | Journal of Intelligent Material Systems and Structures |
Volume | 25 |
Issue number | 14 |
Early online date | 25 Feb 2014 |
DOIs | |
Publication status | Published - 3 Sept 2014 |
Fingerprint
Dive into the research topics of 'Optimum resistive loads for vibration-based electromagnetic energy harvesters with a stiffening nonlinearity'. Together they form a unique fingerprint.Projects
- 3 Finished
-
Dynamic design tools for understanding and exploiting nonlinearity in structures
Neild, S. A. (Principal Investigator)
1/02/13 → 31/07/18
Project: Research
-
-
Low power control methods for energy efficient structures (resubmission)
Inman, D. J. (Principal Investigator)
1/06/12 → 1/12/15
Project: Research
Profiles
-
Professor Steve G Burrow
- School of Civil, Aerospace and Design Engineering - Professor of Aircraft Systems
- Dynamics and Control
- Cabot Institute for the Environment
- Electrical Energy Management
Person: Academic , Member
-
Professor Simon A Neild
- School of Civil, Aerospace and Design Engineering - Professor in Nonlinear Structural Dynamics
- Dynamics and Control
Person: Academic , Group lead