کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5016528 1465302 2017 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Linear and non-linear vibrations of fluid-filled hollow microcantilevers interacting with small particles
ترجمه فارسی عنوان
ارتعاشات خطی و غیر خطی میکروکنترلرهای توخالی با مایع پر شده با ذرات کوچک
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
Linear and non-linear vibrations of a U-shaped hollow microcantilever beam filled with fluid and interacting with a small particle are investigated. The microfluidic device is assumed to be subjected to internal flowing fluid carrying a buoyant mass. The equations of motion are derived via extended Hamilton's principle and by using Euler-Bernoulli beam theory retaining geometric and inertial non-linearities. A reduced-order model is obtained applying Galerkin's method and solved by using a pseudo arc-length continuation and collocation scheme to perform bifurcation analysis and obtain frequency response curves. Direct time integration of the equations of motion has also been performed by using Adams-Moulton method to obtain time histories and analyze transient cantilever-particle interactions in depth. It is shown that exploiting near resonant non-linear behavior of the microcantilever could potentially yield enhanced sensor metrics. This is found to be due to the transitions that occur as a matter of particle movement near the saddle-node bifurcation points of the coupled system that lead to jumps between coexisting stable attractors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Non-Linear Mechanics - Volume 93, July 2017, Pages 30-40
نویسندگان
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