کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10420959 | 905468 | 2005 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A comparison of uncertainty and sensitivity analysis results obtained with random and Latin hypercube sampling
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
two-phase fluid flowKendall's coefficient of concordanceUncertainty analysis - تجزیه و تحلیل عدم قطعیتMonte carlo analysis - تجزیه و تحلیل مونت کارلوSensitivity analysis - تحلیل حساسیتStability - ثباتSubjective uncertainty - عدم اطمینان ذاتیEpistemic uncertainty - عدم اطمینان معرفتیLatin hypercube sampling - نمونه برداری لاتین هپقوبRandom sampling - نمونه گیری تصادفی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Uncertainty and sensitivity analysis results obtained with random and Latin hypercube sampling are compared. The comparison uses results from a model for two-phase fluid flow obtained with three independent random samples of size 100 each and three independent Latin hypercube samples (LHSs) of size 100 each. Uncertainty and sensitivity analysis results with the two sampling procedures are similar and stable across the three replicated samples. Poor performance of regression-based sensitivity analysis procedures for some analysis outcomes results more from the inappropriateness of the procedure for the nonlinear relationships between model input and model results than from an inadequate sample size. Kendall's coefficient of concordance (KCC) and the top down coefficient of concordance (TDCC) are used to assess the stability of sensitivity analysis results across replicated samples, with the TDCC providing a more informative measure of analysis stability than KCC. A new sensitivity analysis procedure based on replicated samples and the TDCC is introduced.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reliability Engineering & System Safety - Volume 89, Issue 3, September 2005, Pages 305-330
Journal: Reliability Engineering & System Safety - Volume 89, Issue 3, September 2005, Pages 305-330
نویسندگان
J.C. Helton, F.J. Davis, J.D. Johnson,