Experiment and Measurement for Development of Nonlinear Vibration-based Piezoelectric Energy Harvesters

基于非线性振动的压电能量收集器开发的实验和测量

• 批准号: 440465-2013
• 负责人: Zu, Jean
• 金额: $ 1.64万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=510025
• 关键词: Experiment; Measurement; Development; Nonlinear; Vibration

The RTI proposal is to support my research program described in my NSERC Discovery Grant application on design and development of nonlinear vibration-based piezoelectric energy harvesters. Vibration-based energy harvesters, capable of scavenging ambient vibrations and converting into electricity, are promising to replace batteries as main power supply for small autonomous electronic devices. Among different types of vibration-based energy harvesters, piezoelectric energy harvesters (PEHs) are the most promising due to its large power density. Despite the promise of PEHs, existing PEHs suffer from major drawbacks such as small power output and narrow frequency bandwidth. My research program will apply two novel and unique nonlinear mechanisms, bistable forced vibrations and structure-based self-excited vibrations, to PEHs to enhance power output and widen the frequency bandwidth.

RTI 提案旨在支持我在 NSERC 发现资助申请中描述的研究项目，该项目涉及基于非线性振动的压电能量收集器的设计和开发。基于振动的能量采集器能够清除环境振动并转化为电能，有望取代电池作为小型自主电子设备的主要电源。在不同类型的基于振动的能量收集器中，压电能量收集器（PEH）由于其功率密度大而最有前途。尽管 PEH 前景广阔，但现有的 PEH 仍存在功率输出小和频率带宽窄等主要缺点。我的研究计划将两种新颖且独特的非线性机制（双稳态受迫振动和基于结构的自激振动）应用于PEH，以增强功率输出并拓宽频率带宽。