کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6709744 1428648 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel discrete element modeling coupled with finite element method for investigating ballasted railway track dynamics
ترجمه فارسی عنوان
مدل سازی عناصر گسسته رمان همراه با روش عنصر محدود برای بررسی دینامیک ردیابی راه آهن
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
A quadruple discrete element method (QDEM) was developed for viscoelastic multi-body dynamics. The sleeper motion modeled using QDEM was coupled with the rail motion modeled using a finite element method (FEM). The traffic impact response of a ballast particle and a sleeper was analyzed. The three-dimensional spatial distribution of ballast particle displacement was clearly revealed. Moreover, the ballast layer absorbed the low frequency vibration of the sleeper more effectively than its high frequency vibration. This study suggests that the proposed QDEM-FEM can provide greater insight into the impact response of ballasted railway tracks.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers and Geotechnics - Volume 96, April 2018, Pages 40-54
نویسندگان
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