Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Piotr Omenzetter"'
Autor:
Faheem Butt, Piotr Omenzetter
Publikováno v:
Advances in Civil Engineering, Vol 2012 (2012)
This paper presents analyses of the seismic responses of two reinforced concrete buildings monitored for a period of more than two years. One of the structures was a three-storey reinforced concrete (RC) frame building with a shear core, while the ot
Externí odkaz:
https://doaj.org/article/9ab5710960964544847409a2d045936e
Publikováno v:
Engineering Structures. 151:839-860
The challenges of accurately identifying the dynamic characteristics of bridge structures from ambient vibration responses persist because, unlike in the ideal laboratory environment, elevated levels of noise in data are unavoidable at any in-situ te
Autor:
Piotr Omenzetter, Simon Hoell
Publikováno v:
Journal of Sound and Vibration. 400:329-353
Considering jointly damage sensitive features (DSFs) of signals recorded by multiple sensors, applying advanced transformations to these DSFs and assessing systematically their contribution to damage detectability and localisation can significantly e
Autor:
Piotr Omenzetter, Simon Hoell
Publikováno v:
Procedia Engineering. 199:2226-2231
The performance, and with it, the utility of structural health monitoring systems depends strongly on the efficiency of damage sensitive features (DSFs) for describing the state of a structure. Several approaches are available for extracting DSFs fro
Autor:
Piotr Omenzetter, Heather Turnbull
Publikováno v:
Procedia Engineering. 199:2274-2281
Wind turbine blades are a key structural component of the wind turbine and are crucial to efficient energy generation. The consequences of blade failure can be very expensive or even catastrophic and therefore a means of continuously monitoring the b
Publikováno v:
Engineering Structures. 229:111604
This paper addresses and evaluates the influence of different types of dynamic excitation sources on identifiability and reliability of modal parameter identification of an eleven-span, post-tensioned, curved concrete motorway off-ramp bridge. The ex
Publikováno v:
Engineering Structures. 223:111139
Damage incidents in subsea risers may lead to catastrophic economic, environmental and human safety consequences. Therefore, early detection of damage is of paramount importance. Vibration-based damage detection methods have been extensively studied
Autor:
Simon Hoell, Piotr Omenzetter
Publikováno v:
Structural Health Monitoring. 15:685-705
The central message of this article is that for robust and efficient damage detection the damage sensitive features should be selected optimally in a systematic way such that only these features that contribute the most to damage detectability be ret
Autor:
Piotr Omenzetter, Faisal Shabbir
Publikováno v:
Engineering Structures. 120:166-182
Structural model updating is an optimisation problem where parameters that minimise the errors between the model and the actual structure are sought. However, multiple solutions may be present. Global optimisation algorithms are efficient optimisatio
Autor:
Simon Hoell, Piotr Omenzetter
Publikováno v:
Mechanical Systems and Signal Processing. :557-577
Data-driven vibration-based damage detection techniques can be competitive because of their lower instrumentation and data analysis costs. The use of autoregressive model coefficients (ARMCs) as damage sensitive features (DSFs) is one such technique.