کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6956456 | 1451868 | 2015 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ranking paths in statistical energy analysis models with non-deterministic loss factors
ترجمه فارسی عنوان
مسیرهای رتبه بندی در مدل های تجزیه و تحلیل انرژی آماری با فاکتورهای از دست دادن غیر قطعی
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کلمات کلیدی
تجزیه و تحلیل انرژی آماری، تجزیه و تحلیل مسیر مسیر انتقال، واریانس مسیر، فاکتورهای تلفات تصادفی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
چکیده انگلیسی
Finding the contributions of transmission paths in statistical energy analysis (SEA) models has become an established valuable tool to detect and remedy vibro-acoustic problems. Paths are identified in SEA according to Craik׳s definition and recently, very efficient methods have been derived to rank them in the framework of graph theory. However, up to date classification schemes have only considered the mean values of loss factors for path comparison, their variance being ignored. This can result in significant errors in the final results. In this work it is proposed to address this problem by defining stochastic biparametric SEA graphs whose edges are assigned both, mean and variance values. Paths between subsystems are then compared according to a proposed cost function that accounts for the stochastic nature of loss factors. For an efficacious ranking of paths, the stochastic SEA graph is converted to an extended deterministic SEA graph where fast classification deterministic algorithms can be applied. The importance of nonneglecting the influence of the variance in path ranking is illustrated by means of some academic numerical examples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volumes 52â53, February 2015, Pages 741-753
Journal: Mechanical Systems and Signal Processing - Volumes 52â53, February 2015, Pages 741-753
نویسندگان
Ãngels Aragonès, Oriol Guasch,