کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7195245 1468198 2018 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new unequal-weighted sampling method for efficient reliability analysis
ترجمه فارسی عنوان
یک روش نمونه گیری جدید نابرابر برای تجزیه و تحلیل قابلیت اطمینان کارآمد
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
In this paper, a new method for efficient reliability analysis is proposed. The proposed method utilizes the Voronoi cells to partition the random-variate space into several sub-spaces and the kernel density estimation to approximate the failure probability in each sub-space. The optimal bandwidth for the kernel is also suggested. Then, the failure probability can be conveniently evaluated by a weighted summation over each sub-space (sampling point). Since the weight for each sub-space (sampling point) is not identical, this method is referred to as the unequal-weighted sampling method for reliability analysis. Numerical implementation procedure of the proposed method is also outlined. Several numerical examples are investigated to verify the proposed method, where the results are compared with those of Monte Carlo simulation and subset simulation methods. It is demonstrated that the proposed method can achieve the tradeoff of accuracy and efficiency for reliability analysis. Problems to be further studied are also pointed out.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reliability Engineering & System Safety - Volume 172, April 2018, Pages 94-102
نویسندگان
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