کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5470920 1519385 2017 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The geometrically nonlinear dynamic responses of simply supported beams under moving loads
ترجمه فارسی عنوان
پاسخهای پویای هندسی غیر خطی پرتوهایی که به سادگی پشتیبانی می شوند تحت بارهای متحرک
کلمات کلیدی
ارتعاش غیر خطی، پرتو، حرکت بار
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
چکیده انگلیسی
This paper presents a method for determining the nonlinear dynamic responses of structures under moving loads. The load is considered as a four degrees-of-freedom system with linear suspensions and tires flexibility, and the structure is modeled as an Euler-Bernoulli beam with simply supported at both ends. The nonlinear dynamic interaction of the load-structure system is discussed, and Kelvin−Voigt material model is employed for the beam. The nonlinear partial differential equations of the dynamic interaction are derived by using the von Kármán nonlinear theory and D'Alembert's principle. Based on the Galerkin method, the partial differential equations of the system are transformed into nonlinear ordinary equations, which can be solved by using the Newmark method and Newton−Raphson iteration method. To validate the approach proposed in this paper, the comparison are performed using a moving mass and a moving oscillator as the excitation sources, and the investigations demonstrate good reliability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 48, August 2017, Pages 183-195
نویسندگان
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