کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
805259 905128 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Response analysis of nonlinear multi-degree-of-freedom systems with uncertain properties to non-Gaussian random excitations
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Response analysis of nonlinear multi-degree-of-freedom systems with uncertain properties to non-Gaussian random excitations
چکیده انگلیسی

The investigation reported in this paper is concerned with the development of an approach for response analysis of multi-degree-of-freedom (mdof) nonlinear systems with uncertain properties of large variations and under non-Gaussian nonstationary random excitations. The developed approach makes use of the stochastic central difference (SCD) method, time co-ordinate transformation (TCT), and adaptive time schemes (ATS). It is applicable to geometrically complicated systems idealized by the finite element method (FEM). For demonstration of its use and availability of results for direct comparison, a two-degree-of-freedom (tdof) nonlinear asymmetric system with uncertain natural frequencies and under Gaussian and non-Gaussian nonstationary random excitations is considered. Computed results obtained for the system with and without uncertain natural frequencies, and under Gaussian and non-Gaussian nonstationary random excitations are presented. It is concluded that the approach is relatively simple, accurate and efficient to apply.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Probabilistic Engineering Mechanics - Volume 27, Issue 1, January 2012, Pages 75–81
نویسندگان
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