تصفح Qatar University Institutional Repository حسب الموضوع "Failure analysis"
السجلات المعروضة 1 -- 10 من 10
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A Greedy Layer-Wise Learning Algorithm for Open-Circuit Fault Diagnosis of Grid-Connected Inverters
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)This paper introduces a greedy layer-wise learning algorithm to diagnose open-circuit faults of grid-connected inverters. Inverters play important roles in energy conversion, especially when converting direct current to ... -
A novel affine qLPV model derivation method for fault diagnosis H∞ performance improvement
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)In this paper, a methodology for an affine quasilinear parameter varying (qLPV) model derivation is proposed. The nonlinear model of the system is converted into a qLPV model by hiding the nonlinearities in the scheduling ... -
Actuator Fault Diagnosis in Multi-Zone HVAC Systems using 2D Convolutional Neural Networks
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)This paper presents a novel supervised on-line fault diagnosis strategy in Heating, Ventilation, and Air conditioning (HVAC) systems for actuator faults using 2D Convolutional Neural Networks. It is based on an efficient ... -
Adaptive sliding mode observer for sensor fault diagnosis of an industrial gas turbine
( Elsevier Ltd , 2015 , Article)Sensors are one of the crucial components in gas turbines and the failure in sensor measurements can lead to serious problems in maintaining their safety and performance requirements. Our aim in this paper is to develop ... -
Early Bearing Fault Diagnosis of Rotating Machinery by 1D Self-Organized Operational Neural Networks
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Preventive maintenance of modern electric rotating machinery (RM) is critical for ensuring reliable operation, preventing unpredicted breakdowns and avoiding costly repairs. Recently many studies investigated machine ... -
Effect of corrosion on mechanical properties of the joining of materials
( Universiti Malaysia Pahang , 2020 , Article)The effect of corrosion behavior in critical environmental conditions on the mechanical properties of composite/metal materials joints was investigated by immersing metalic materials into 5wt% hydrochloric acid solutions. ... -
Evidential Reasoning–Based Condition Assessment Model for Offshore Gas Pipelines
( American Society of Civil Engineers (ASCE) , 2016 , Article)Condition assessment of oil and gas pipelines is a significant component in pipeline operations and maintenance. Such assessments are used to ensure better decisions for repair and/or replacement to reduce pipelines’ failure ... -
Galvanized Steel as a Sustainable Material-Technology and Failure Analysis
( Qatar University Press , 2023 , Conference Paper)The building industry is responsible for 40% of global CO2 emissions and 36% of global energy consumption. Therefore, it is not surprising that the industry is motivated to embrace more environment-friendly procedures and ... -
Novel Actuator Fault Diagnosis Framework for Multizone HVAC Systems Using 2-D Convolutional Neural Networks
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Heating, ventilation, and air conditioning (HVAC) systems are used to condition the indoor environment in buildings. They can be subjected to malfunctioning since they are the most extensively operated buildings' components ... -
Sensor data validation and fault diagnosis using Auto-Associative Neural Network for HVAC systems
( Elsevier Ltd , 2020 , Article)The Heating, Ventilation, and Air conditioning (HVAC) system is a major system in buildings for conditioning the indoor environment. Sensor data validation and fault diagnosis for HVAC systems are essentially important to ...