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Papers by Nassam Assouma

Research paper thumbnail of Aerospace Industry - British Airways vs Emirates Airlines

BRITISH AIRWAYS vs EMIRATES AIRLINES, 2016

To understand the social, political, economic, environmental and technological factors that influ... more To understand the social, political, economic, environmental and technological factors that influence the aviation and aerospace industry, the case of British Airways and Emirates Airlines is selected. The PEST and SWOT analysis of both airlines is carried out. The marketing strategy of both airlines is compared and discussed to evaluate some of their performances and the way through which they promote their products. Finally, the financial assessment of the two airlines is carried out to understand how well they both performed between 2013 and 2015.

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Research paper thumbnail of Engine Front Fan Blade

In turbofan engines, most of the thrust is produced by bypassing the air that passes through a la... more In turbofan engines, most of the thrust is produced by bypassing the air that passes through a large diameter fan located at the front of the engine. The fan consists of multiple blades that rotate at high speeds around an axis to push the air backward into the engine. To achieve this crucial function, it is important for the fan blades component to be manufactured with appropriate materials.

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Research paper thumbnail of Environmental Practices in Aviation

To understand the roles of aerospace companies in the promotion of sustainable aviation and their... more To understand the roles of aerospace companies in the promotion of sustainable aviation and their contributions to environmental and climate protection.
The case of Lufthansa Technik has been studied in detail.

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Research paper thumbnail of Engineering Analysis and Simulation

In engineering, some problems can be managed with simple hand calculations and manipulations. The... more In engineering, some problems can be managed with simple hand calculations and manipulations. They are many engineering problems with various complexity levels. Engineering simulation software contain many tools adapted to specific problems. In fact, the classical approach is well adapted when the problem involves a single element, few independent variables or limited degrees of freedom.
Problems involving several data with complex dynamic situations with many independent or dependent variables interacting with each other are difficult to handle using the classical approach and the generated results may also be far from the expected ones when performed using the classical problem handling methods. At a small scale, the results could be sufficiently acceptable when solving for specific locations on a beam or a pipe. That is the main reason why it is preferable to perform discretization on the analyzed model to identify and obtain the closest or most accurate results to the actual solutions. Performing discretization divides the model into many segments, increasing the degrees of freedom. Using the software to solve for each element requires the use of engineering skills to choose the necessary inputs, apply the acting forces and defining the existing boundary conditions if any. The end result can be used as a tool to estimate or predict similar situations under given conditions.
In this report, Matlab software will be used to write interpolation and regression polynomials for single variable or multivariable data. The frequency response and time response of a cantilever and supported beams are estimated when simulated in various conditions. Data will be collected from cars to analyze correlation between several parameters and develop coding for cost optimization.

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Thesis Chapters by Nassam Assouma

Research paper thumbnail of Wing Structural Design For Two-Seater Trainer Aircraft

The wing of aircraft is designed according to the mission or operational purposes. In the design,... more The wing of aircraft is designed according to the mission or operational purposes. In the design, maintenance and operations of training aircrafts, cost, reliability and safety are some of the most important parameters to consider. Wing performances are not just determined by their aerodynamic characteristics but also their structural characteristics which is the ability to sustain both internal and external loads. In addition to the internal weights of the spars, ribs, stringers, landing gear and tanks, the fuel load and aerodynamic loads are external forces that act on the structure and exert pressure on it. This paper will concentrate on the structural design of the wing of a two-seater trainer aircraft. The report addresses both modeling and simulation in order to evaluate the wing structural performances. The modeling is performed using SolidWorks and the simulation using ANSYS. Also, a MATLAB m-file coding is used to generate the wing external dimensions. The result of the simulation is then analyzed and interpreted. At the end, a construction of V-n diagram for the designed wing is achieved.

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Research paper thumbnail of Aerodynamic Analysis on a Wing With Distributed Propulsion System

Aerodynamic analysis on a wing with distributed propulsion system, 2019

The objective of this paper is to model and simulate a wing powered with a distributed propulsion... more The objective of this paper is to model and simulate a wing powered with a distributed propulsion system at both take-off and cruise conditions. The thesis demonstrates the advantages of Distributed Electric Propulsion (DEP) by studying the flow around a wing. MATLAB was used to generate the wing external dimensions using the wing design parameters (aspect ratio, taper ratio, twist angle). The modelling of the wing was performed using ANSYS Workbench and the one of the high-lift propellers (HPs) and Tip Propeller (TP) in SolidWorks before importing the propellers from SolidWorks to ANSYS and attaching them at the front of the leading edge of the wing at equal distances. The propellers in this thesis are designed using the blade radius with constant twist angle from root to tip using the information collected through a literature review, as the optimization of the propellers alone is not the main focus of this project. The project scope is only limited to the way through which they are utilized in a configuration that improves the wing aerodynamic performance. After creating the meshes and applying the required setups, four simulations where conducted in this project through a step by step analysis that first started with a simulation of the wing alone. After adding the propellers, the wing with all HPs and TP was simulated in deployed stationary configuration at take-off conditions. The lift value increased and the drag decreased as a result of this improvement. Once more, the wing with the same configuration was simulated by assigning rotational velocities to the propellers. The results showed a great improvement in the lift and drag values. A last simulation was performed at cruise conditions where all the HPs were folded in the nacelles and the wing was simulated with the TP being in stationary configuration. Additional simulations were later performed to improve the reliability from the results obtained after each of the simulations. Moreover, the plots of the pressure, velocity and streamlines provided relevant information about the aerodynamic interference between the wing and the propellers. The slipstreams created by the propellers and their effects on the wing were also discussed. The results concluded that significant aerodynamic improvements can be achieved in DEP Technology by installing a propeller at the wingtip and HPs at the leading edge of the wing at appropriate locations.

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Research paper thumbnail of Aerospace Industry - British Airways vs Emirates Airlines

BRITISH AIRWAYS vs EMIRATES AIRLINES, 2016

To understand the social, political, economic, environmental and technological factors that influ... more To understand the social, political, economic, environmental and technological factors that influence the aviation and aerospace industry, the case of British Airways and Emirates Airlines is selected. The PEST and SWOT analysis of both airlines is carried out. The marketing strategy of both airlines is compared and discussed to evaluate some of their performances and the way through which they promote their products. Finally, the financial assessment of the two airlines is carried out to understand how well they both performed between 2013 and 2015.

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Research paper thumbnail of Engine Front Fan Blade

In turbofan engines, most of the thrust is produced by bypassing the air that passes through a la... more In turbofan engines, most of the thrust is produced by bypassing the air that passes through a large diameter fan located at the front of the engine. The fan consists of multiple blades that rotate at high speeds around an axis to push the air backward into the engine. To achieve this crucial function, it is important for the fan blades component to be manufactured with appropriate materials.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Environmental Practices in Aviation

To understand the roles of aerospace companies in the promotion of sustainable aviation and their... more To understand the roles of aerospace companies in the promotion of sustainable aviation and their contributions to environmental and climate protection.
The case of Lufthansa Technik has been studied in detail.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Engineering Analysis and Simulation

In engineering, some problems can be managed with simple hand calculations and manipulations. The... more In engineering, some problems can be managed with simple hand calculations and manipulations. They are many engineering problems with various complexity levels. Engineering simulation software contain many tools adapted to specific problems. In fact, the classical approach is well adapted when the problem involves a single element, few independent variables or limited degrees of freedom.
Problems involving several data with complex dynamic situations with many independent or dependent variables interacting with each other are difficult to handle using the classical approach and the generated results may also be far from the expected ones when performed using the classical problem handling methods. At a small scale, the results could be sufficiently acceptable when solving for specific locations on a beam or a pipe. That is the main reason why it is preferable to perform discretization on the analyzed model to identify and obtain the closest or most accurate results to the actual solutions. Performing discretization divides the model into many segments, increasing the degrees of freedom. Using the software to solve for each element requires the use of engineering skills to choose the necessary inputs, apply the acting forces and defining the existing boundary conditions if any. The end result can be used as a tool to estimate or predict similar situations under given conditions.
In this report, Matlab software will be used to write interpolation and regression polynomials for single variable or multivariable data. The frequency response and time response of a cantilever and supported beams are estimated when simulated in various conditions. Data will be collected from cars to analyze correlation between several parameters and develop coding for cost optimization.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Wing Structural Design For Two-Seater Trainer Aircraft

The wing of aircraft is designed according to the mission or operational purposes. In the design,... more The wing of aircraft is designed according to the mission or operational purposes. In the design, maintenance and operations of training aircrafts, cost, reliability and safety are some of the most important parameters to consider. Wing performances are not just determined by their aerodynamic characteristics but also their structural characteristics which is the ability to sustain both internal and external loads. In addition to the internal weights of the spars, ribs, stringers, landing gear and tanks, the fuel load and aerodynamic loads are external forces that act on the structure and exert pressure on it. This paper will concentrate on the structural design of the wing of a two-seater trainer aircraft. The report addresses both modeling and simulation in order to evaluate the wing structural performances. The modeling is performed using SolidWorks and the simulation using ANSYS. Also, a MATLAB m-file coding is used to generate the wing external dimensions. The result of the simulation is then analyzed and interpreted. At the end, a construction of V-n diagram for the designed wing is achieved.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Aerodynamic Analysis on a Wing With Distributed Propulsion System

Aerodynamic analysis on a wing with distributed propulsion system, 2019

The objective of this paper is to model and simulate a wing powered with a distributed propulsion... more The objective of this paper is to model and simulate a wing powered with a distributed propulsion system at both take-off and cruise conditions. The thesis demonstrates the advantages of Distributed Electric Propulsion (DEP) by studying the flow around a wing. MATLAB was used to generate the wing external dimensions using the wing design parameters (aspect ratio, taper ratio, twist angle). The modelling of the wing was performed using ANSYS Workbench and the one of the high-lift propellers (HPs) and Tip Propeller (TP) in SolidWorks before importing the propellers from SolidWorks to ANSYS and attaching them at the front of the leading edge of the wing at equal distances. The propellers in this thesis are designed using the blade radius with constant twist angle from root to tip using the information collected through a literature review, as the optimization of the propellers alone is not the main focus of this project. The project scope is only limited to the way through which they are utilized in a configuration that improves the wing aerodynamic performance. After creating the meshes and applying the required setups, four simulations where conducted in this project through a step by step analysis that first started with a simulation of the wing alone. After adding the propellers, the wing with all HPs and TP was simulated in deployed stationary configuration at take-off conditions. The lift value increased and the drag decreased as a result of this improvement. Once more, the wing with the same configuration was simulated by assigning rotational velocities to the propellers. The results showed a great improvement in the lift and drag values. A last simulation was performed at cruise conditions where all the HPs were folded in the nacelles and the wing was simulated with the TP being in stationary configuration. Additional simulations were later performed to improve the reliability from the results obtained after each of the simulations. Moreover, the plots of the pressure, velocity and streamlines provided relevant information about the aerodynamic interference between the wing and the propellers. The slipstreams created by the propellers and their effects on the wing were also discussed. The results concluded that significant aerodynamic improvements can be achieved in DEP Technology by installing a propeller at the wingtip and HPs at the leading edge of the wing at appropriate locations.

Bookmarks Related papers MentionsView impact