STRUCTURAL HEALTH MONITORING AND RESIDUAL LIFE EVALUATION OF COMPLEX STRUCTURES
Journal: NDT WORLD
Volume 18 № 3
, 2015
Rubrics: MONITORING
Authors:
1.
Belarusian National Technical University
( starshiy prepodavatel')
graduate student
Minsk, Belarus
graduate student
Minsk, Belarus
2.
Nizhny Novgorod State University of Architecture and Civil Engineering
Nizhny Novgorod, Russian Federation
Nizhny Novgorod, Russian Federation
4.
Institute of Applied Physics of the National Academy of Sciences of Belarus
(laboratoriya vychislitel'noy diagnostiki, zaveduyuschiy)
employee
Minsk, Belarus
employee
Minsk, Belarus
5.
State Institution of Higher Professional Education "Belarusian-Russian University"
( starshiy prepodavatel')
graduate student
Mogilev, Belarus
graduate student
Mogilev, Belarus
Type:
Article
Pages:
from 25
to 29
Status:
Published
Received:
09.08.2015
Accepted:
28.03.2017
Published:
01.09.2015
Language:
Russian
Keywords:
anthropogenic risks, safety in wildlife, structural health monitoring
Abstract (English):
The problem of accident prevention for complex structures is considered as multifactor forecasting problem, covering the tasks of Structural Health Monitoring, Non-Destructive Testing, situational modelling for joint behaviour of the object and multi sensor system in extreme cases, risk and residual life time evaluation. This task is considered as an inverse problem being solved in the Bayesian formulation. We introduce three principal characteristics of object behaviour, namely: impact, risk of direct consequences (vulnerability), and risk of indirect consequences. Interaction of the object under observation and monitoring system respectively is displayed in the form of graph, described with a matrix of transition probabilities, given opportunity to evaluate condition probability. The example is given for the calculation of residual life time for the steel cable roof of large sport building, basing on the estimate of operating reliability as a probability integral of critical parameters of detected defects.
The problem of accident prevention for complex structures is considered as multifactor forecasting problem, covering the tasks of Structural Health Monitoring, Non-Destructive Testing, situational modelling for joint behaviour of the object and multi sensor system in extreme cases, risk and residual life time evaluation. This task is considered as an inverse problem being solved in the Bayesian formulation. We introduce three principal characteristics of object behaviour, namely: impact, risk of direct consequences (vulnerability), and risk of indirect consequences. Interaction of the object under observation and monitoring system respectively is displayed in the form of graph, described with a matrix of transition probabilities, given opportunity to evaluate condition probability. The example is given for the calculation of residual life time for the steel cable roof of large sport building, basing on the estimate of operating reliability as a probability integral of critical parameters of detected defects.
Keywords:
anthropogenic risks, safety in wildlife, structural health monitoring
anthropogenic risks, safety in wildlife, structural health monitoring
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