کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5016372 1464967 2016 36 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modified one-element method for exact dynamic responses of a beam by using the frequency domain spectral element method
ترجمه فارسی عنوان
روش یک المان اصلاح شده برای پاسخ دینامیکی دقیق پرتو با استفاده از روش عنصر طیفی دامنه فرکانسی
کلمات کلیدی
روش عنصر طیفی، یک روش عنصر، روش دو عنصر، روش یک المان اصلاح شده، پاسخ دینامیکی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
In the spectral element method (SEM), there are two ways to deal with external loads applied to a structure member. One way is to represent the structure member as a single finite element subjected to effective nodal forces and moments at two end-nodes of the finite element, which is called the “one-element method” (OEM). The other way is to represent the structure member as two finite elements, with consideration of the external loads as nodal forces and moments applied at the joint node (i.e., the excitation point), which is called the “two-element method” (TEM). The OEM does not require the assembly of finite elements, but in general provides poor dynamic responses. On the other hand, the TEM requires the assembly of finite elements, but always provides exact dynamic responses. Based on this intrinsic exactness of the TEM, a new SEM-based solution technique called the “modified one-element method” (MOEM) is proposed. The MOEM is developed by analytically transforming the SEM-based two-element model into the form of the SEM-based one-element model and it can provide exact dynamic responses without the assembly of finite elements. Through numerical simulations, the accuracy of the OEM, TEM, and MOEM is evaluated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mechanical Sciences - Volume 119, December 2016, Pages 333-342
نویسندگان
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