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Analytical and Numerical Investigations on a Bistable System for Energy Harvesting Application

Heymanns, Matthias and Hagedorn, Peter (2014):
Analytical and Numerical Investigations on a Bistable System for Energy Harvesting Application.
In: Proceedings of the ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (DETC2014): Volume 6, pp. V006T10A063-V006T10A063, [Book Section]

Abstract

This paper aims at an analytical and numerical analysis of a bistable Duffing equation. One purpose lies in the identification of suitable oscillations for a robust energy harvesting device, i.e. a system that is well suited for a broad bandwidth excitation. A map is constructed illustrating the dependence of the harvested energy on the predominant oscillation type. It shows that interwell oscillations lead to the highest energy harvest compared to intra-well and cross-well oscillations under harmonic excitation. The determination of the critical excitation parameters necessary to maintain inter-well oscillations is essential for the design of bistable energy harvesters. Therefore, investigations are made to attain an analytical description of the inter-well oscillation region. On this basis, a design criterion is derived for nonlinear energy harvesters.

Item Type: Book Section
Erschienen: 2014
Creators: Heymanns, Matthias and Hagedorn, Peter
Title: Analytical and Numerical Investigations on a Bistable System for Energy Harvesting Application
Language: English
Abstract:

This paper aims at an analytical and numerical analysis of a bistable Duffing equation. One purpose lies in the identification of suitable oscillations for a robust energy harvesting device, i.e. a system that is well suited for a broad bandwidth excitation. A map is constructed illustrating the dependence of the harvested energy on the predominant oscillation type. It shows that interwell oscillations lead to the highest energy harvest compared to intra-well and cross-well oscillations under harmonic excitation. The determination of the critical excitation parameters necessary to maintain inter-well oscillations is essential for the design of bistable energy harvesters. Therefore, investigations are made to attain an analytical description of the inter-well oscillation region. On this basis, a design criterion is derived for nonlinear energy harvesters.

Title of Book: Proceedings of the ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (DETC2014): Volume 6
ISBN: 978-0-7918-4639-1
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Dynamics and Vibrations
Zentrale Einrichtungen
Exzellenzinitiative
Exzellenzinitiative > Graduate Schools > Graduate School of Computational Engineering (CE)
Exzellenzinitiative > Graduate Schools
Event Title: ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Date Deposited: 23 Feb 2016 07:00
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