A5015523916- Structural Health Monitoring Techniques
- Ultrasonics and Acoustic Wave Propagation
- Infrastructure Maintenance and Monitoring
- Tribology and Lubrication Engineering
- Non-Destructive Testing Techniques
- Brake Systems and Friction Analysis
- Tribology and Wear Analysis
- Optical measurement and interference techniques
- Topology Optimization in Engineering
- Advanced Numerical Analysis Techniques
- Biodiesel Production and Applications
- Advanced machining processes and optimization
- Vibration and Dynamic Analysis
- Hydraulic and Pneumatic Systems
- Advanced Combustion Engine Technologies
- Engineering Applied Research
- Concrete Corrosion and Durability
- Numerical methods in engineering
- Aerodynamics and Fluid Dynamics Research
- Advanced Fiber Optic Sensors
- Vibration Control and Rheological Fluids
- Optical Systems and Laser Technology
- Gear and Bearing Dynamics Analysis
- Metaheuristic Optimization Algorithms Research
- Fatigue and fracture mechanics
Northwest African American Museum
2022-2024
Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf
2014-2022
Ghent University
2019
Metaheuristic optimization algorithms are known for their versatility and adaptability, making them effective tools solving a wide range of complex problems. They don't rely on specific problem types, gradients, can explore globally while handling multi-objective optimization. strike balance between exploration exploitation, contributing to advancements in However, it's important note limitations, including the lack guaranteed global optimum, varying convergence rates, somewhat opaque...
This paper presents an approach of inverse damage detection and localization based on model reduction. The problem is formulated as where optimization algorithm used to minimize the cost function expressed normalized difference between a frequency vector tested structure its numerical model. A finite element bi-dimensional monolithic composite beam reinforced by graphite-epoxy define in which different scenarios are considered stiffness Then, calculations made reduced built technique proper...
The existence of damages in structures causes changes the physical properties by reducing modal parameters. In this paper, we develop a two-stages approach based on normalized Modal Strain Energy Damage Indicator (nMSEDI) for quick applications to predict location damage. A two-dimensional IsoGeometric Analysis (2D-IGA), Machine Learning Algorithm (MLA) and optimization techniques are combined create new tool. first stage, introduce modified damage identification technique frequencies using...
This paper presents a methodology for damage detection and localization in composite beams using vibration data, Particle Swarm Optimization (PSO) Genetic Algorithm (GA). The data was acquired by developing software that performs dynamic analysis of based on the Finite Element Method (FEM). objective function makes use natural frequencies Modal Assurance Criterion. After validating effectiveness proposed method, comparative study between performances PSO GA detecting multiple single...
This paper presents a new damage detection and localization technique based on the changes in vibration parameters using BAT Particle Swarm Optimization algorithm. The finite element method is used to apply at specific element(s) of considered beams. represented by reduction Young's modulus identification formulated as an optimization problem objective function Modal Scale Factor natural frequencies. A procedure for detecting locating beam-like structures algorithm used. approach that can be...
In this article, brake discs are exposed to high thermal stress, causing fatigue damage. The aim of work is study the evolution wear behavior disc materials, such as cast iron, chromium steel, and metal matrix composites, under influence fatigue. specimens heated then cooled rapidly. Then, tests carried out using a pin-on-disc-type tribometer. Organic semimetallic friction materials used for all tests. results show that affects structure contact surfaces by increasing their roughness....
The strongest point about damage identification based on the dynamic measurements, is ability perform structural health evaluation globally. Researchers in last few years payed more attention to indicators modal analysis using either frequencies, mode shapes, or Frequency Response Functions (FRFs). This paper presents a new application of cross-ply (0°/90°/0°) laminated composite plate Force Residual Method (FRM) indicator. Considering single and multiple damages with different levels. As...
Braking efficiency is characterized by reduced braking time and distance, therefore passenger safety depends on the design of system. During a vehicle, system must dissipate kinetic energy transforming it into heat energy. A too high temperature can lead to an almost total loss efficiency. An excessive rise in brake also cause surface cracks extending outside edge drum friction surface. Heat transfer gradient, not forget vehicle's travel environment (high speed, heavy load, steeply sloping...
In recent years, substantial investments in structural construction underscore the paramount importance of ensuring integrity for safety and dependability. Structural Health Monitoring (SHM) has emerged as a pivotal tool assessing health, with an emphasis on damage detection, localisation, quantification, particularly through vibration-based methods that exploit variations modal properties precursors to damage. This study presents innovative methodology synergistically combines Proper...
This paper presents a new damage detection and localization technique based on the changes in vibration parameters using BAT Particle Swarm Optimization algorithm. The finite element method is used to apply at specific element(s) of considered beams. represented by reduction Young’s modulus identification formulated as an optimization problem objective function Modal Scale Factor natural frequencies. A procedure for detecting locating beam-like structures algorithm used. approach that can be...
The friction of two bodies in relative motion is accompanied by several phenomena such as elevation temperature. aim this work to calculate the braking temperature brake disc an aircraft during landing phase, using a calculation code based on Finite Element Method (FEM) and analytical method Newcomb. This investigation uses kinds — full real (original version mounted aircraft) three materials cast irons FG15, FG20 FG25. result showed that numbers holes slots existing has no influence...
The hydrodynamic clutch is a device of coupling which works according to the principle hydrody-namic transmission. Fluid couplings work on principle. It consists pump-generally known as impeller and turbine generally rotor, both en-closed suitably in casing. used transmit rotating mechanical power. has centrifugal characteristics during starting, thus enabling no load start-up prime mover, great importance. been automobile transmis-sions an alternative clutch. This study aimed at...
Piston top rings in the combustion engine play a crucial role overall hydrodynamic performance of engines, such as power loss, minimum film thickness and friction forces, by ensuring sealing minimizing leakage burnt gases. This present paper examines influence four key parameters ring, ring width, temperature, tension, surface roughness on behavior at ring/cylinder contact. These significant formation maintenance oil film, directly influencing indicators thickness, force, pressure, angle...
Currently, modern internal combustion engines are receiving great attention due to their efficiency, particularly in response the increasing limits imposed by environmental and emission legislation. Sound emissions of mainly caused three sources noise: combustion, mechanical aerodynamic flow. The secondary motion piston plays a crucial role analysis performance, noise, vibration reliability engine (ICE). In presented article, mathematical simulation model has been developed using GT-Suite...