کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7133320 | 1461823 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nonlinear Piezoelectric Energy Harvester with Ball Tip Mass
ترجمه فارسی عنوان
هیدرولیک انرژی پیزوالکتریک غیرخطی با جرم نورد بال
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کلمات کلیدی
برداشت انرژی، مواد پیزوالکتریک، جمع آوری انرژی لرزش، غیر خطی، پهنای باند، جرم نیت،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
In this study, a nonlinear piezoelectric energy harvester (PEH) with a ball tip mass was designed and fabricated for broadband energy harvesting. The proposed nonlinear PEH exhibits two resonant frequencies (5 and 15â¯Hz) and can harvest a considerable amount of electrical energy, whereas a conventional PEH with a rigid tip mass only exhibits one (15â¯Hz). The minimum acceleration that can induce nonlinearity in the proposed PEH was determined to be 3â¯mâ¯s-2. In order to maximize the electrical output of the proposed PEH, 0.1â¯mm was selected as the optimal vibration amplitude of the ball among three options (0.1, 0.5, and 1.0â¯mm). The maximum output power of the proposed PEH was measured as 13.5â¯mW at 15â¯Hz and at a load resistance of 30 kΩ, which is the matching load resistance calculated and verified with the experimental result. The output power of the proposed PEH was measured to be 1.8â¯mW at 5â¯Hz and 45 kΩ, whereas that of the conventional PEH at 5â¯Hz was 0.03â¯mW, implying that the proposed PEH possesses one additional resonant frequency over the conventional PEH. In addition, the proposed PEH performs significantly better than the conventional PEH in terms of broadband energy harvesting. At a power level of 100 μW, the proposed PEH at 3â¯mâ¯s-2 provides a bandwidth of 20â¯Hz, which is more than 133% wider than the 15â¯Hz provided by the conventional PEH. By utilizing the nonlinearity with a ball tip mass, the PEH vibration is capable of harvesting considerable electrical energy from more than two resonant frequencies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 277, 1 July 2018, Pages 124-133
Journal: Sensors and Actuators A: Physical - Volume 277, 1 July 2018, Pages 124-133
نویسندگان
Jung Hwan Ahn, Won Seop Hwang, Sinwoo Jeong, Jae Yong Cho, Seong Do Hong, Sung Joo Hwang, Gyeong Ju Song, Hong Hee Yoo, Tae Hyun Sung,