Energy harvesting: vibration powered generators with non-linear compliance

能量收集：具有非线性顺应性的振动动力发电机

• 批准号: EP/E044220/1
• 负责人: Stephen Burrow
• 金额: $ 25.14万
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE044220%2F1
• 关键词: Energy; harvesting; vibration; powered; generators

Generating power from ambient vibrations is one of a number of techniques that have been proposed to provide a renewable power source for electronic circuits. Typical applications include wireless sensors to monitor parameters inside the human body or conditions inside a large civil structure.Because of the applications vibration powered generators have to be small and it can be difficult to produce sufficient power in such a small volume unless the device is careful optimised. Vibration powered generators use a resonant mass/spring arrangement to amplify the small vibrations to a useable level and the proposed research will investigate how this resonant system behaves when the spring element has a non-linear compliance i.e. force is no longer proportional to frequency. This is important since non-linearities can occur because of manufacturing, particularly at small scales, and because of magnetic or electrostatic forces.The proposed research will provide analytical techniques to design vibration powered generators with non-linear spring elements and hence improve their performance, making them applicable in a wider variety of applications.

从环境振动发电是已经提出的为电子电路提供可再生电源的多种技术之一。典型的应用包括无线传感器，用于监测人体内的参数或大型土木结构内的条件。由于这些应用，振动发电机必须很小，除非仔细优化设备，否则很难在如此小的体积内产生足够的功率。振动发电机使用谐振质量/弹簧布置将小振动放大到可用水平，并且所提出的研究将调查当弹簧元件具有非线性顺应性时该谐振系统的行为，即力不再与频率成比例。这是很重要的，因为非线性可能会发生，因为制造，特别是在小规模，因为磁或静电力，拟议的研究将提供分析技术，设计振动发电机与非线性弹簧元件，从而提高其性能，使其适用于更广泛的各种应用。

项目成果

Numerical Continuation in a Physical Experiment: Investigation of a Nonlinear Energy Harvester

• DOI: 10.1115/1.4002380
• 发表时间: 2009
• 期刊: Journal of Computational and Nonlinear Dynamics
• 影响因子: 2
• 作者: D. Barton;S. Burrow

Energy Harvesting From Vibrations With a Nonlinear Oscillator

• DOI: 10.1115/1.4000809
• 发表时间: 2010-04-01
• 期刊: JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME
• 影响因子: 1.7
• 作者: Barton, David A. W.;Burrow, Stephen G.;Clare, Lindsay R.
• 通讯作者: Clare, Lindsay R.

Modelling and experimental characterization of an energy harvester with bi-stable compliance characteristics

• DOI: 10.1177/0959651811403093
• 发表时间: 2011-06-01
• 期刊: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING
• 影响因子: 1.6
• 作者: Cammarano, A.;Burrow, S. G.;Barton, D. A. W.
• 通讯作者: Barton, D. A. W.

Control-based continuation for investigating nonlinear experiments

• DOI: 10.1177/1077546310384004
• 发表时间: 2012-04-01
• 期刊: JOURNAL OF VIBRATION AND CONTROL
• 影响因子: 2.8
• 作者: Barton, David A. W.;Mann, Brian P.;Burrow, Stephen G.
• 通讯作者: Burrow, Stephen G.