کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5019255 1468201 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrostatic-season-time model updating using Bayesian model class selection
ترجمه فارسی عنوان
به روز رسانی مدل هیدرواستاتیک-فصل با استفاده از انتخاب مدل کلاس بیزی
کلمات کلیدی
انتخاب کلاس مدل بیزی؛ مشاهدات جغرافیایی؛ مدل زمان هیدرواستاتیک فصل؛ انتخاب مدل مدل؛ رگرسیون خطی چندگانه؛ سد خاکریز سقفی؛ 00-01؛ 99-00
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی


- Empirical hydrostatic-season-time (HST) models are useful for dam predictions.
- We propose an efficient probabilistic method to find the accurate and robust HST model.
- Bayesian model class selection has high potential in risk assessment of dams.

The aim of this paper is to present a novel attempt for parametric estimation in the hydrostatic-season-time (HST) model. The empirical HST-model has been widely used for the analysis of different measurement data types on dams. The significance of individual parameters or their sub-groups for modelling the influence of the water level, air and water temperature, and irreversible deformations due to the ageing of the dam, depends on the structure itself. The process of finding an accurate HST-model for a given data set, which remains robust to outliers, cannot only be demanding but also time consuming. The Bayesian model class selection approach imposes a penalisation against overly complex model candidates and admits a selection of the most plausible HST-model according to the maximum value of model evidence provided by the data or relative plausibility within a set of model class candidates. The potential of Bayes interference and its efficiency in an HST-model are presented on geodetic time series as a result of a permanent monitoring system on a rock-fill embankment dam. The method offers high potential for engineers in the decision making process, whilst the HST-model can be promptly adapted to new information given by new measurements and can enhance the safety and reliability of dams.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reliability Engineering & System Safety - Volume 169, January 2018, Pages 40-50
نویسندگان
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