Search Results - "Papatheou, Evangelos"

A Brief Introduction to Recent Developments in Population-Based Structural Health Monitoring by Worden, Keith, Bull, Lawrence A., Gardner, Paul, Gosliga, Julian, Rogers, Timothy J., Cross, Elizabeth J., Papatheou, Evangelos, Lin, Weijiang, Dervilis, Nikolaos

“…One of the main problems in data-based Structural Health Monitoring (SHM), is the scarcity of measured data corresponding to damage states in the structures of…”
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A data-driven dynamic method of downhole rock characterisation for the vibro-impact drilling system by Afebu, Kenneth Omokhagbo, Liu, Yang, Papatheou, Evangelos

“…For the real-time characterisation of an inhomogeneous impact inhibiting constraint such as downhole rock layers, an unconventional method using machine…”
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Drilling performance analysis of a polycrystalline diamond compact bit via finite element and experimental investigations by Al Shekaili, Ahmed, Liu, Yang, Papatheou, Evangelos

“…The significance of improving the drilling productivity and reducing the cost and non-productive time of drilling process, substantially relies on the…”
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Application and comparison of feature-based classification models for multistable impact motions of percussive drilling by Afebu, Kenneth Omokhagbo, Liu, Yang, Papatheou, Evangelos

“…•Prediction of coexisting impact motions of a percussive drilling system is studied.•Various feature extractions are used to learn system’s complex…”
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Feature-based intelligent models for optimisation of percussive drilling by Afebu, Kenneth Omokhagbo, Liu, Yang, Papatheou, Evangelos

“…As a rotary-percussion system, the vibro-impact drilling (VID) system utilises resonantly induced high frequency periodic impacts alongside existing…”
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Machine learning-based rock characterisation models for rotary-percussive drilling by Afebu, Kenneth Omokhagbo, Liu, Yang, Papatheou, Evangelos

“…Vibro-impact drilling has shown huge potential of delivering better rate of penetration, improved tools lifespan and better borehole stability. However, being…”
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LSTM-based approach for predicting periodic motions of an impacting system via transient dynamics by Afebu, Kenneth Omokhagbo, Liu, Yang, Papatheou, Evangelos, Guo, Bingyong

“…Dynamically impacting systems are characterised with inherent instability and complex non-linear phenomena which makes it practically difficult to predict the…”
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A Performance Monitoring Approach for the Novel Lillgrund Offshore Wind Farm by Papatheou, Evangelos, Dervilis, Nikolaos, Maguire, Andrew Eoghan, Antoniadou, Ifigeneia, Worden, Keith

“…The use of offshore wind farms has been growing in recent years. Europe is presenting a geometrically growing interest in exploring and investing in such…”
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Combining transfer learning and numerical modelling to deal with the lack of training data in data-based SHM by Battu, Raja Sekhar, Agathos, Konstantinos, Londoño Monsalve, Juliàn Mauricio, Worden, Keith, Papatheou, Evangelos

“…Structural health monitoring (SHM) involves continuously surveilling the performance of structures to identify progressive damage or deterioration that might…”
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Two-stage machine learning models for bowel lesions characterisation using self-propelled capsule dynamics by Afebu, Kenneth Omokhagbo, Tian, Jiyuan, Papatheou, Evangelos, Liu, Yang, Prasad, Shyam

“…To foster early bowel cancer diagnosis, a non-invasive biomechanical characterisation of bowel lesions is proposed. This method uses the dynamics of a…”
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Energy harvesting from human motion and bridge vibrations: An evaluation of current nonlinear energy harvesting solutions by Green, Peter L, Papatheou, Evangelos, Sims, Neil D

“…A large quantity of recent research into the harvesting of electrical energy from ambient vibration sources has been focused on the improvement of device…”
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Performance monitoring of a wind turbine using extreme function theory by Papatheou, Evangelos, Dervilis, Nikolaos, Maguire, Andrew E., Campos, Carles, Antoniadou, Ifigeneia, Worden, Keith

“…A power curve relates the power produced by a wind turbine to the wind speed. Usually, such curves are unique to the various types of wind turbines, so that by…”
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Real-time novelty detection of an industrial gas turbine using performance deviation model and extreme function theory by Gu, Xiwen, Yang, Shixi, Sui, Yongfeng, Papatheou, Evangelos, Ball, Andrew D., Gu, Fengshou

“…•A real-time novelty detection approach for industrial gas turbines.•Fusing multi-type monitoring parameters to establish a performance deviation model.•Using…”
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Spectral DCS-based feature extraction method for rolling element bearing pseudo-fault in rotor-bearing system by Chi, Yongwei, Yang, Shixi, Jiao, Weidong, He, Jun, Gu, Xiwen, Papatheou, Evangelos

“…•A dynamic model is built for diagnosing REBs’ pseudo-fault of rotor-REBs system.•The spectral DCS method is proposed for pseudo-fault feature extraction of…”
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AI-Assisted Dynamic Tissue Evaluation for Early Bowel Cancer Diagnosis Using a Vibrational Capsule by Afebu, Kenneth Omokhagbo, Tian, Jiyuan, Liu, Yang, Papatheou, Evangelos, Prasad, Shyam

“…With early sign of bowel cancer being changes in affected lesions biomechanical properties, an AI-assisted dynamic tissue evaluation is proposed for early…”
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The use of pseudo-faults for damage location in SHM: An experimental investigation on a Piper Tomahawk aircraft wing by Papatheou, Evangelos, Manson, Graeme, Barthorpe, Robert J., Worden, Keith

“…The application of pattern recognition-based approaches in damage localisation and quantification will eventually require the use of some kind of supervised…”
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The use of pseudo-faults for novelty detection in SHM by Papatheou, Evangelos, Manson, Graeme, Barthorpe, Robert J., Worden, Keith

“…The main problem associated with pattern recognition based approaches to Structural Health Monitoring (SHM) is that damage localisation and quantification…”
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Developing a hardware in-the-loop simulator for a backpack energy harvester by Papatheou, Evangelos, Sims, Neil D

“…Energy harvesting from ambient sources has been the subject of several studies. Some of the proposed approaches attempt to generate electrical energy from the…”
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Modelling of segmentation-driven vibration in machining by Taylor, Chris M., Turner, Sam, Papatheou, Evangelos, Sims, Neil D.

“…Excessive vibration, such as chatter, is a common problem in machining processes. Meanwhile, numerous hard, brittle metals have been shown to form segmented…”
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The use of pseudo-faults for novelty detection in SHM: Structural Health Monitoring Theory Meets Practice by PAPATHEOU, Evangelos, MANSON, Graeme, BARTHORPE, Robert J, WORDEN, Keith

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