作者
Jacopo Iannacci, Guido Sordo, Enrico Serra, U Schmid
发表日期
2016/7
期刊
Microsystem Technologies
卷号
22
页码范围
1865-1881
出版商
Springer Berlin Heidelberg
简介
In this contribution, we discuss a novel design concept of a high-performance wideband MEMS vibration energy harvester (EH), named four-leaf clover (FLC EH-MEMS) after its circular shape featuring four petal-like mass-spring systems. The goal is to enable multiple resonant modes in the typical range of vibrations scattered in the environment (i.e., up to 4–5 kHz). This boosts the FLC conversion capability from mechanical into electrical energy exploiting the piezoelectric effect, thus overcoming the common limitation of cantilever-like EHs that exhibit good performance only in a very narrow band of vibration (i.e., fundamental resonant mode). The FLC concept is first discussed framing it into the current state of the art, highlighting its strengths. Then, after a brief theoretical introduction on mechanical resonators, the FLC EH-MEMS device is described in details. Finite Element Method (FEM) analyses are …
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J Iannacci, G Sordo, E Serra, U Schmid - Microsystem Technologies, 2016