کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10368717 | 875037 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A broadband quad-stable energy harvester and its advantages over bi-stable harvester: Simulation and experiment verification
ترجمه فارسی عنوان
ارزیاب انرژی چهارم پایدار پهنای باند و مزایای آن بر پایه برداشت محصول با دوام: آزمایش شبیه سازی و آزمایش
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
چکیده انگلیسی
This paper presents a novel quad-stable energy harvester (QEH) to harvest vibration energy. The QEH is composed of a piezoelectric bimorph cantilever beam with a tip magnet and three external fixed magnets. The potential energy of the QEH is derived, which has four potential wells and three low barriers. This implies that the QEH needs relatively lower excitation energy to cross the barriers than the bi-stable energy harvester (BEH). Simulations are carried out for the BEH and QEH at different levels of excitations. Results show that the QEH owns a smaller threshold and a wider range of frequencies for occurrence of snap-through than the BEH. Thus the QEH can give out a large output voltage. Corresponding experiments were performed for validation. The experimental results are in agreement with the simulations, which means that the QEH can improve the harvesting efficiency considerably.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 84, Part A, 1 February 2017, Pages 158-168
Journal: Mechanical Systems and Signal Processing - Volume 84, Part A, 1 February 2017, Pages 158-168
نویسندگان
Zhiyong Zhou, Weiyang Qin, Pei Zhu,