کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8051884 | 1519377 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study on vibration and stability of an axially translating viscoelastic Timoshenko beam: Non-transforming spectral element analysis
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کلمات کلیدی
ODEsETBBVPPDEsVTBTimoshenko beam - Timoshenko پرتوStability - ثباتFinite element model - روش اجزاء محدود یا روش المان محدود Spectral element method - روش عنصر طیفیpre - قبل ازRheological model - مدل رئولوژیکیSEM - مدل معادلات ساختاری / میکروسکوپ الکترونی روبشیBoundary-value problem - مشکل مرزی ارزشPartial differential equations - معادلات دیفرانسیل جزئیOrdinary differential equations - معادلهٔ دیفرانسیل معمولیFEM - پنج
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Engineering systems, such as rolled steel beams, chain and belt drives and high-speed paper, can be modeled as axially translating beams. This article scrutinizes vibration and stability of an axially translating viscoelastic Timoshenko beam constrained by simple supports and subjected to axial pretension. The viscoelastic form of general rheological model is adopted to constitute the material of the beam. The partial differential equations governing transverse motion of the beam are derived from the extended form of Hamilton's principle. The non-transforming spectral element method (NTSEM) is applied to transform the governing equations into a set of ordinary differential equations. The formulation is similar to conventional FFT-based spectral element model except that Daubechies wavelet basis functions are used for temporal discretization. Influences of translating velocities, axial tensile force, viscoelastic parameter, shear deformation, beam model and boundary condition types are investigated on the underlying dynamic response and stability via the NTSEM and demonstrated via numerical simulations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 56, April 2018, Pages 342-358
Journal: Applied Mathematical Modelling - Volume 56, April 2018, Pages 342-358
نویسندگان
Ali Mokhtari, Hamid Reza Mirdamadi,