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78 articles for “failures”
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Evaluating the Reciprocating Compressor Components Failure and Downtime
Abstract: The investigation on the evaluation of reciprocating compressor component failures using the reliability approach was examined for a period of five (5) years. The components monitored were valves, seal, pistons, bearing, O-rings, and cylinders and the numbers of failure per year were obtained as 10, 8, 2, ,7, 9 and 4 for the first year, 6 6, 2, 5, 7 and 2 for the second year, 7, 6, 2, 3, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Computation of Compressor Components Failure and Maintenance Characteristics
Abstract: The computation of the compressor components failure and maintenance characteristics as related to the major parts are described in this research. The research projected the root cause of the compressor components failure as well as projected the necessary measure to reduce such occurrence in the gas compressor operation. The parameters of the Mean time between failure, failure rate, downtime maintenance, reliability, unreliability, and availability were commutated respect to the number …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Nonlinear Finite Element Approaches for Structural Failure Prediction: A Comparative Assessment with Case Studies
Abstract: Abstract Nonlinear finite element methods (NLFEM) have become indispensable for predicting structural failure in complex engineering systems, particularly where linear models fail to capture critical behaviors, such as large deformations, crack propagation, and post-buckling responses. This study investigates and compares several state-of-the-art NLFEM techniques – namely cohesive zone modeling (CZM), extended finite element method (XFEM), and phase-field fracture modelling – in the context of structural failure prediction. Three representative case …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 11, Issue 1, 2025 · pp. 1–5 Read article
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Mechanical and Thermal Factors Contributing to Turbine Engine Failures
Abstract: Turbine engines are essential parts of aircraft and power plants because they operate in harsh mechanical and temperature environments, which increases the likelihood of their failure. This paper summarizes what is now known about the complex interactions between thermal loads and mechanical stresses in turbine engine breakdowns. Thermal aspects, such as thermal cycling, heat transfer methods, and cooling systems, are examined for their contributions to deterioration and structural integrity, while …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 10, Issue 1, 2024 · pp. 7–12 Read article
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A Study to analyze compliance to timing of thrombolytic loading dose among patient with acute myocardial infarction and its impact on patient outcomes
Abstract: Thrombolytic medications work by breaking down large blood clots, allowing blood to flow back to the heart and reducing the risk of heart muscle damage. These agents can help prevent a heart attack from progressing to a myocardial infarction, which can be life-threatening. Fibrinolytic drugs are the preferred treatment for STEMI, as they promote reperfusion and restore blood flow when given within 12 hours of symptom onset. A 12- hour …
Published in International Journal of Nursing Critical Care · Vol. 10, Issue 2, 2024 · pp. 1–11 Read article
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Optimizing Gas Turbine Performance: Preventive Measures and Blade Durability Solutions
Abstract: The article explores the various failure mechanisms and preventive methods related to gas turbine blades, which operate under extreme mechanical and thermal conditions. The increasing demand for energy and efficiency in turbojet engines has led to larger and more complex turbomachines. As gas turbine blades are subjected to high operational temperatures, pressure, and stress, they are prone to multiple failure modes, including fatigue, creep, oxidation, corrosion, and erosion. To mitigate …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 10, Issue 2, 2024 · pp. 36–40 Read article
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A Review on Resistance Spot Welding of Dissimilar Metal
Abstract: An extensive analysis of resistance spot welding in dissimilar metals is presented in this review paper. Resistance spot welding (RSW) is a joining technique that is frequently used in various sectors and most importantly in automotive sectors because of its effectiveness and efficiency in creating strong welded joints. This paper provides basic understanding of the various aspects of work done on dissimilar metals. It also gives an understanding of the …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 1, 2024 · pp. 12–24 Read article
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Entropy-Based Damage Accumulation in Tribological Systems: A Comprehensive Review
Abstract: This paper reviews classical wear models and entropy-based degradation approaches used for predicting failure in tribological systems. Various wear models, thermodynamic frameworks, and applications of the Degradation Entropy Generation (DEG) theorem are discussed. Friction, which is the primary source of heat generation in tribological contacts, is responsible for material degradation through a variety of irreversible processes. While classical wear approaches have been widely used for wear prediction and life estimation, …
Published in International Journal of Mechanics and Design · Vol. 12, Issue 1, 2026 · pp. 1–12 Read article
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Analysis and Design of Structural Components in Offshore and Marine Engineering
Abstract: Offshore and marine engineering play a pivotal role in the global energy market, particularly in the oil and gas industry. The structural integrity of components in such challenging environments is critical, as they are exposed to harsh conditions including high winds, waves, and corrosion. This research paper aims to explore the analytical and design principles for structural components used in offshore and marine engineering, emphasizing materials, loading conditions, failure mechanisms, …
Published in International Journal of Mechanics and Design · Vol. 10, Issue 2, 2024 · pp. 1–6 Read article
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Faults in On-Load Tap Changer of a Transformer: An Innovative Approach to Mechanical Fault Diagnosis
Abstract: On-load tap changer (OLTC) is very important for maintaining or regulating output voltage, but it has moving contact & complex switching mechanisms which contributes to the failure of on-load tap changer. Faults in OLTC such as Coking Contact wear and damaged transition resistors significantly reduce reliability of transformers which may lead to catastrophic failures of transformers. There are some traditional approaches for diagnostics of OLTC, such as Static Resistance Measurements, …
Published in International Journal of Electrical Power System and Technology · Vol. 12, Issue 2, 2026 Read article
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Fault-Tolerant Modular Power Converter for Large-Scale Renewable Energy Integration
Abstract: The rapid expansion of large-scale renewable energy systems has significantly increased the demand for highly reliable and fault-resilient power electronic converters capable of maintaining stable grid operation under component failures and fluctuating renewable power generation. This paper proposes a Fault-Tolerant Modular Power Converter (FTMPC) for large-scale renewable energy integration, incorporating a modular multilevel architecture, intelligent fault diagnosis, and adaptive reconfiguration control to ensure uninterrupted power conversion. The proposed converter continuously …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 2, 2026 Read article
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IoT-Based Battery Management System for Electric Vehicles
Abstract: Electric vehicles (EVs) are becoming increasingly popular due to rising fuel costs and environmental concerns in contemporary applications, where energy storage systems power a wide range of devices, from small gadgets to big electric vehicles and renewable energy grids, efficient battery management is becoming more and more crucial. This study proposes the design and implementation of an Internet of Things (IoT)-based battery management system (BMS) that can continually monitor vital …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 2, 2025 · pp. 1–7 Read article
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Investigation of Seismic Pounding Effect on Symmetric 10 Storey Reinforced Concrete Buildings Using SAP2000
Abstract: ABSTRACT Earthquakes have historically been responsible for significant structural failures, often resulting in substantial economic losses and endangering human lives. One notable failure mechanism observed during seismic activity is seismic pounding, which occurs when adjacent buildings collide due to insufficient separation gaps. This phenomenon is particularly concerning in densely populated urban areas where space constraints often prevent the provision of adequate clearances between structures. Such impacts can lead to severe …
Published in International Journal of Structural Engineering and Analysis · Vol. 11, Issue 2, 2025 · pp. 32–42 Read article
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Cross Sectional Area of Column
Abstract: Abstract In structural engineering, columns play a critical role in transferring loads from beams to thefoundation. The load applied on a beam is transmitted to the column, resulting in an upward reactiveforce. This upward pressure necessitates the determination of the column’s cross-sectional area basedon direct stress analysis to ensure that the structure can safely bear the imposed loads. Additionally,an end moment develops at the joint between the beam and the …
Published in International Journal of Structural Engineering and Analysis · Vol. 11, Issue 1, 2025 · pp. 14–20 Read article
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A Comparative Evaluation of Geopolymer, Conventional and GFRP Retrofitting Techniques in Augmenting Seismic Robustness of RC Structures
Abstract: Abstract The requirement of retrofitting an old existing structure, rendered structurally unsafe (based on its structural health assessment) is observed to be a major challenge faced by engineers as it necessitates comprehensive and complicated repair procedures. It was further seen that during earthquake, the main reason for failure of any structure was the failure of its beam column joints, thereby making it essential to strengthen them specifically. Until recently, the …
Published in International Journal of Structural Engineering and Analysis · Vol. 11, Issue 1, 2025 · pp. 1–13 Read article
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Assessment of Foundation for Pier
Abstract: AbstractThe design and assessment of pier foundations are crucial due to the substantial loads they mustsupport. Piers are subjected to significant structural and dynamic loads, requiring a robustfoundation system to ensure stability and prevent excessive settlement or failure. A mat foundation istypically selected to distribute these heavy loads over a large area, minimizing pressure on theunderlying soil. The bearing capacity is assumed to be based on the presence of a …
Published in International Journal of Structural Engineering and Analysis · Vol. 10, Issue 2, 2024 · pp. 1–8 Read article
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An Analysis of the Use of Bamboo Fiber in Concrete
Abstract: Abstract-Bamboo fibers exhibit great potential when it comes to concrete strength and help in minimizing the unavoidable brittle failure. However, there is a need for reconceptualization which combines all other relevant important information and makes it easy for the reader to decide whether or not them uses of bamboo fibers are appropriate. Thus, this review is conducted on bamboo fiber-reinforced concrete to create an overview of historical and more recent …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 10, Issue 2, 2024 Read article
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Experimental Investigation of FSW on Al 6061-T6 MG Dissimilar Joints
Abstract: Friction Stir Welding (FSW) is a solid-state joining technique that has shown significant potential for welding dissimilar materials, such as aluminum and magnesium alloys, which are difficult to join using conventional fusion welding methods due to large differences in their physical, thermal, and metallurgical properties. During FSW, contact between the rotating, wear-resistant tool shoulder, the pin, and the work piece produces frictional energy. Additional thermal energy develops because of intense …
Published in International Journal of Manufacturing and Materials Processing · Vol. 12, Issue 2, 2026 · pp. 1–12 Read article
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Dynamic Matrix Control Versus Nonlinear ModelPredictive Control for the Van de Vusse ContinuousStirred-Tank Reactor: Diagnosing and Correcting aCost-Function Pathology That Masked NMPC’sTrue Performance
Abstract: The Van de Vusse reaction in a continuous stirred-tank reactor (CSTR) is a benchmark for nonlinear multivariable control, but its narrow operating envelope creates a trap for nonlinear model predictive control (NMPC): when the setpoint step is small relative to the plant’s reachable range, a standard quadratic NMPC cost function can make zero control action mathematically optimal, even with a perfect prediction model. This paper documents that failure mode, traces …
Published in International Journal of Chemical Separation Technology · Vol. 12, Issue 2, 2026 · pp. 55–66 Read article
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Autonomous Multi-Agent Sensor Network for Distributed Environmental Instrumentation
Abstract: Environmental monitoring requires intelligent, scalable, and autonomous instrumentation systems capable of continuously sensing, processing, and communicating heterogeneous data under dynamic conditions. This study proposes an Autonomous Multi-Agent Sensor Network for Distributed Environmental Instrumentation, integrating distributed sensor nodes, edge computing, multi-agent collaboration, adaptive data fusion, and intelligent decision-making to achieve reliable real-time monitoring of environmental parameters. Each sensor agent autonomously performs local sensing, anomaly detection, energy-aware communication, and cooperative information exchange …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 12, Issue 2, 2026 Read article