Searched for: subject:"Guided%5C+wave"
(1 - 16 of 16)
document
Ochoa, P.A. (author), Groves, R.M. (author), Bernedictus, R. (author)
A reliable damage diagnostic by ultrasonic guided wave (GW) based structural health monitoring (SHM) can only be achieved if the physical interactions between wave propagation, the SHM system and environmental factors are fully understood. The purpose of this research was to gain knowledge about the effects of high-amplitude low-frequency...
article 2020
document
Saeed, A. (author), Volker, A.W.F. (author), Martina, Q. (author), Alalouni, A. (author)
Scale and corrosion affect the production certainty of oil and gas well. Scale build-up reduces flow and ultimately could shut down production when it block to tubing completely. Corrosion of the tubing wall occurs very often simultaneously with scale build-up and affects the integrity of the tubing wall. Vital information about the integrity is...
conference paper 2019
document
van Groenestijn, G.J.A. (author), Jansen, T.H. (author), van Neer, P.L.M.J. (author), Jacobs, M.J. (author), Cheng, L.K. (author)
Elastic guided waves are carriers of information of the (change in) condition of plate-like structures like windturbine blades, airplane wings and road surfaces on bridges. To measure these guided waves we do not have to use piezos. Other sensors offer interesting benefits like contactless sensing, embedding, or measuring without electricity....
conference paper 2018
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Pahlavan, P.L. (author), De Soares Silva e Melo Mota, M. (author), Blacquière, G. (author)
Asphalt materials generally exhibit temperature-dependent properties, which can influence the performance of fatigue crack inspection and monitoring systems for bridge deck structures. For a non-intrusive fatigue crack sizing methodology applied to steel decks using ultrasonic guided waves, the effect of asphalt has been investigated. A higher...
article 2016
document
Volker, A.W.F. (author), van Zon, A.T. (author)
Corrosion is one of the industries major issues regarding the integrity of assets. Currently, inspections are conducted at regular intervals to ensure a sufficient integrity level of these assets. Cost reduction while maintaining a high level of reliability and safety of installations is a major challenge. There are many situations where the...
conference paper 2014
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van Zon, A.T. (author), Volker, A.W.F. (author)
The concept of predictive maintenance using permanent sensors that monitor the integrity of an installation is an interesting addition to the current method of periodic inspections. Guided wave tomography had been developed to create a map of the wall thickness using the travel times of guided waves. It can be used for both monitoring and for...
conference paper 2014
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Volker, A.W.F. (author), van Zon, A.T. (author)
The concept of predictive maintenance using permanent sensors that monitor the integrity of an installation is an interesting addition to the current method of periodic inspections. Guided wave tomography has been developed to map the wall thickness using the travel times of guided waves. The method has been demonstrated for straight pipes. The...
conference paper 2012
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Volker, A.W.F. (author), Vos, H. (author)
Corrosion is one of the industries major issues regarding the integrity of assets. Currently inspections are conducted at regular intervals to ensure a sufficient integrity level of these assets. Cost reduction while maintaining a high level of reliability and safety of installations is a major challenge. The concept of predictive maintenance...
conference paper 2011
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Volker, A.W.F. (author), Bloom, J.G.P. (author), TNO Industrie en Techniek (author)
The concept of predictive maintenance using permanent sensors that monitor the integrity of an installation is an interesting addition to the current method of periodic inspections. Guided wave tomography has been developed to map the wall thickness using the travel times of guided waves. The method has been demonstrated for straight pipes. The...
conference paper 2010
document
Volker, A.W.F. (author), Bloom, J.G.P. (author)
Corrosion is one of the industries major issues regarding the integrity of assets. Currently inspections are conducted at regular intervals to ensure a sufficient integrity level of these assets. Cost reduction while maintaining a high level of reliability and safety of installations is a major challenge. The concept of predictive maintenance...
conference paper 2010
document
Bloom, J.G.P. (author), Luiten, E.A. (author), Volker, A.W.F. (author), TNO Industrie en Techniek (author)
Guided wave tomography is a promising technique for the monitoring of corrosion over large areas. Guided waves have a wave speed mat depends in certain frequency-thickness regimes on the local thickness of the waveguide they follow. Therefore, the travel time of the guided wave over a fixed distance contains information about the thickness...
conference paper 2009
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Bloom, J.G.P. (author), Stelwagen, U. (author), Mast, A. (author), Volker, A.W.F. (author), Krom, A.H.M. (author), Mohamoud, A.A. (author), van Gils, G.P. (author), TNO Industrie en Techniek (author)
Risk based inspection strategies rely on detailed knowledge of the performance of inspection techniques. It is well known that every inspection technique has limitations in terms of reliability and effectiveness. Moreover, these are influenced by many factors. E.g. it depends on operator skills, inspection procedure, defect and object geometry...
conference paper 2009
document
Bloom, J.G.P. (author), Stelwagen, U. (author), Mast, A. (author), Volker, A.W.F. (author), TNO Industrie en Techniek (author)
Risk based inspection strategies rely on detailed knowledge of the performance of inspection techniques. The objective of the "POD generator" project is to develop a numerical modeling approach to assess the effectiveness of specific inspection techniques. Simulation offers flexibility and reliability at acceptable costs. Therefore numerical...
conference paper 2009
document
Volker, A.W.F. (author), Mast, A. (author), Bloom, J.G.P. (author), TNO Industrie en Techniek (author)
Corrosion is one of the industries major issues regarding the integrity of assets. Currently inspections are conducted at regular intervals to ensure a sufficient integrity level of these assets. Both economical and social requirements are pushing the industry to even higher levels of availability, reliability and safety of installations. The...
conference paper 2009
document
Volker, A.W.F. (author), Luiten, E.G. (author), Bloom, J.G.P. (author), TNO Industrie en Techniek (author)
The concept of predictive maintenance using permanent sensors that monitor the integrity of an installation is an interesting addition to the current method of periodic inspections. The method should be capable of providing quantitative wall thickness information for both straight pipes and bends. The wave propagation in bends is far more...
conference paper 2009
document
Krom, A.H.M. (author), Mast, A. (author), Volker, A.W.F. (author), Bloom, J.G.P. (author), Technisch Physische Dienst TNO - TH (author)
conference paper 2008
Searched for: subject:"Guided%5C+wave"
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