کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11023558 1701268 2019 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Theoretical analysis of multi-stable energy harvesters with high-order stiffness terms
ترجمه فارسی عنوان
تجزیه و تحلیل تئوری مصرف کننده های چند پایه انرژی با اصطلاحات سخت افزاری بالا
کلمات کلیدی
برداشت انرژی چند ثبات، راه حل های تئوری، تجزیه و تحلیل غیر خطی، سختی بالا،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
This paper mainly focuses on theoretical analysis of multi-stable energy harvesters with high-order stiffness terms to reveal their dynamic response mechanism and enhance energy harvesting performance. A modified Lindstedt-Poincaré method is applied to explicitly find the coupled relationship of the amplitude-frequency response equations which are consistent with the direct results from the traditional method of multiple scales. The nine-valued responses are found and five of them are stable. Meanwhile, complex multi-valued characteristics are observed in the amplitude of the response displacement. Especially, eleven types of interesting dynamic characteristics are found with the variation of the excitation amplitude. Combining with the stability analysis, the dynamic response mechanism of multi-stable energy harvesters is revealed. Furthermore, the influences of high-order nonlinear coefficients on the response are analyzed. The selection of high-order nonlinear coefficients for obtaining high-energy oscillations over a wide frequency range is analyzed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 69, April 2019, Pages 270-286
نویسندگان
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