Outputs (26)

Effect of the stacking sequence on the impact response of carbon-glass/epoxy hybrid composites (2020)
Journal Article

This paper investigates low-velocity impact response of Quasi Isotropic (QI) hybrid carbon/glass fiber reinforced polymer composites with alternate stacking sequences. Cross-ply woven carbon and glass fibers were used as reinforcing materials to fabr... Read More about Effect of the stacking sequence on the impact response of carbon-glass/epoxy hybrid composites.

Detection of aircraft touchdown using longitudinal acceleration and continuous wavelet transformation (2020)
Journal Article

The paper presents a methodology enabling the detection of aircraft touchdowns based on data obtained from accelerometers attached to the structural parts of the airframe in the cockpit or passenger compartment. Precise determination of the moment an... Read More about Detection of aircraft touchdown using longitudinal acceleration and continuous wavelet transformation.

Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges (2020)
Journal Article

Comparison study of unsteady Reynolds-averaged Navier-Stokes (URANS) and hybrid RANS-LES models is carried out for predicting the performance of three-straight-bladed vertical axis wind turbine operating within tip speed ratios (TSRs) ranges of (1.44... Read More about Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges.

Three-dimensional strains on twisted and swept composite rotor blades in vacuum (2020)
Journal Article

This paper presents an investigation of the effects of tip sweep on highly twisted composite rotor blades by acquiring strain data in vacuum. Three parametric test cases were designed for strain measurements, and predictions from a special three-dime... Read More about Three-dimensional strains on twisted and swept composite rotor blades in vacuum.

Nonlinear frequency domain solution method for aerodynamic and aeromechanical analysis of wind turbines (2020)
Journal Article

The aerodynamic simulations of wind turbines are typically carried out using a steady inflow condition. However, the aerodynamics and aeroelasticity of wind turbine blades can be significantly affected by inflow wakes due to the environmental conditi... Read More about Nonlinear frequency domain solution method for aerodynamic and aeromechanical analysis of wind turbines.

Preliminary structural design and aerodynamic analysis of Mars science helicopter rotors (2020)
Presentation / Conference Contribution

NASA and Jet Propulsion Laboratory have proposed conceptual designs of a larger 20 kg Mars Science Helicopter (MSH) as a follow-on to the small 1.8 kg Mars Helicopter "Ingenuity". The preliminary structural design of the MSH rotor was carried out at... Read More about Preliminary structural design and aerodynamic analysis of Mars science helicopter rotors.

Direct numerical simulation of interaction between transient flow and blade structure in a modern low-pressure turbine (2020)
Journal Article

A feature of a modern aeronautical Low-Pressure Turbine (LPT) is the high blade loadings with complex, transient and separated flow regimes. Most existing research have focused only on analysing the transient flow and flow separation in such turbines... Read More about Direct numerical simulation of interaction between transient flow and blade structure in a modern low-pressure turbine.

Design optimization of grid-connected PV-Hydrogen for energy prosumers considering sector-coupling paradigm: Case study of a university building in Algeria (2020)
Journal Article

Integrating sector coupling technologies into Hydrogen (H2) based hybrid renewable energy systems (HRES) is becoming a promising way to create energy prosumers, despite the very little research work being done in this largely unexplored field. In thi... Read More about Design optimization of grid-connected PV-Hydrogen for energy prosumers considering sector-coupling paradigm: Case study of a university building in Algeria.

Laser powder bed fusion of WC-reinforced Hastelloy-X composite: Microstructure and mechanical properties (2020)
Journal Article

Nickel-based superalloys such as Hastelloy X (HX) are widely used in gas turbine engines for their exceptional oxidation resistance and high-temperature strength. The addition of ceramic reinforcement further enhances these superalloys’ mechanical pe... Read More about Laser powder bed fusion of WC-reinforced Hastelloy-X composite: Microstructure and mechanical properties.

Using FFF and topology optimisation to increase crushing strength in equestrian helmets (2020)
Presentation / Conference Contribution

International standards ensure that equestrian helmets achieve high performance. Recently, one such standard (PAS 015) was revised to include a lateral deformation requirement, ensuring helmets can withstand the potential crushing forces associated w... Read More about Using FFF and topology optimisation to increase crushing strength in equestrian helmets.

The effect of heat treatment of AlSi10Mg on the energy absorption performance of surface-based structures (2020)
Presentation / Conference Contribution

Additive Manufacturing of cellular lattice structures offers opportunities to fine-tune the mechanical response by altering geometric variables. It is known that heat treatment cycles provide an effective way of altering mechanical properties while r... Read More about The effect of heat treatment of AlSi10Mg on the energy absorption performance of surface-based structures.

DNS of secondary flows over oscillating low-pressure turbine using spectral/hp element method (2020)
Journal Article

This paper investigates the secondary vortex flows over an oscillating low-pressure turbine blade using a direct numerical simulation (DNS) method. The unsteady flow governing equations over the oscillating blade are discretized and solved using a sp... Read More about DNS of secondary flows over oscillating low-pressure turbine using spectral/hp element method.

A GIS-MOPSO integrated method for optimal design of grid-connected HRES for educational buildings (2020)
Book Chapter

In this paper, an optimal design of a grid-connected PV-battery-hydrogen hybrid renewable energy system (HRES) at a University campus in Ouargla, Algeria is carried out. To achieve this goal, geographical information system (GIS), CAD software and mu... Read More about A GIS-MOPSO integrated method for optimal design of grid-connected HRES for educational buildings.

Development of adaptive control methodologies and algorithms for nonlinear dynamic systems based on u-control framework (2020)
Thesis

Inspired by the U-model based control system design (or called U-control system design), this study is mainly divided into three parts.
The first one is a U-model based control system for unstable non-minimum phase system. Pulling theorems are prop... Read More about Development of adaptive control methodologies and algorithms for nonlinear dynamic systems based on u-control framework.

Integrated supply–demand energy management for optimal design of off-grid hybrid renewable energy systems for residential electrification in arid climates (2020)
Journal Article

The growing research interest in hybrid renewable energy systems (HRESs) has been regarded as a natural and yet critical response to address the challenge of rural electrification. Based on a Bibliometric analysis performed by authors, it was conclud... Read More about Integrated supply–demand energy management for optimal design of off-grid hybrid renewable energy systems for residential electrification in arid climates.

U-Model and U-Control methodology for nonlinear dynamic systems (2020)
Journal Article

This study presents the fundamental concepts and technical details of a U-model-based control (U-control for short) system design framework, including U-model realisation from classic model sets, control system design procedures, and simulated showca... Read More about U-Model and U-Control methodology for nonlinear dynamic systems.

Improved gradient descent algorithms for time-delay rational state-space systems: Intelligent search method and momentum method (2020)
Journal Article

This study proposes two improved gradient descent parameter estimation algorithms for rational state-space models with time-delay. These two algorithms, based on intelligent search method and momentum method, can simultaneously estimate the time-dela... Read More about Improved gradient descent algorithms for time-delay rational state-space systems: Intelligent search method and momentum method.

Model-based information navigation for engineering documents (2020)
Journal Article

Engineering and the manner in which engineers think is largely visual and functional, and yet engineers are typically provided with search engines that are text-based. While software based on a visual and functional ethos exist (CAD for example), whe... Read More about Model-based information navigation for engineering documents.

The effect of gurney flap on flow characteristics of vertical axis wind turbine (2020)
Journal Article

Recently, the Gurney Flap (GF) has been used to improve the performance of Horizontal Axis Wind Turbine (HAWT) by enhancing its lift coefficient. Compared to HAWT, research on GF application for Vertical Axis Wind Turbine (VAWT) is very limited. More... Read More about The effect of gurney flap on flow characteristics of vertical axis wind turbine.

Demand forecasting of short life cycle products using data mining techniques (2020)
Presentation / Conference Contribution

Products with short life cycles are becoming increasingly common in many industries due to higher levels of competition, shorter product development time and increased product diversity. Accurate demand forecasting of such products is crucial as it p... Read More about Demand forecasting of short life cycle products using data mining techniques.