UNDERGRADUATE COURSES
AE101 Introduction to Aerospace Engineering
Aerospace Engineering Department of METU: METU; Faculty of Engineering; Department of Aerospace Engineering; Purpose, Staff, Facilities, Courses, Rules and Regulations. History of Turkish Aviation. Turkish Aerospace Industry: Existing Industry, opportunities in Aerospace Industry; expectations from an Aerospace Engineer. Visits to industry: Companies and factories related to aviation located in the vicinity of Ankara.
Fundamental concepts and principles of mechanics. Introductory vector analysis. Statics of particles. Statics and equilibrium of rigid bodies in 2-D and 3-D. Equivalent system of forces and couples. Analysis of simple structures, trusses and machines. Introduction to determinancy, indeterminancy and proper and improper constraints in 2-D and 3-D structures. Analysis of simple beams.
AE172 Introduction to Aircraft Performance
Elements and functions of A/C basic configuration. Forces and moments acting on an A/C; aerodynamic coefficients. Standard atmosphere. Performance: equations of motion; horizontal flight; climb performance; take-off performance; gliding; descent and landing performance; range and endurance; flight envelope; V-n diagram. Longitudinal static stability; aerodynamic center; criterion for longitudinal static stability; static margin; unstable A/C.
Modelling at Türkkuşu facilities.
A vectorial approach to dynamics of particles and rigid bodies. Kinematics of particles, kinetics of particles. Kinematics of rigid bodies and kinetics of rigid bodies. Newton's second law and the laws of linear and angular momentum. Conservation Laws. The principle of impulse and momentum. Impact of particles and rigid bodies. Potential and kinetic energy, conservation laws and energy methods. Relative motion. The emphasis on dynamics of particles, system of particles and plane motion of rigid bodies. Introduction to three dimensional motion of rigid bodies.
Introduction to stress and strain concepts. Concept of analysis and design. Joints. Introduction to determinate and indeterminate problems and composites. Stress concentrations, simple optimization, linearly elastic and elastic-perfectly plastic problems in axial loading, torsion, and pure bending cases. Transverse loading and bending of beams. Analysis of shear stresses.
Basic concepts, properties of pure substances,first law of thermodynamics for closed systems and control volumes,entropy, second law of thermodynamics, second law analysis,introductory cycle analysis.
Introduction, definition and physical properties of fluids, concept of continuum. Kinematics, coordinates, derivatives, flowlines. Fluid statics and buoyancy. Basic principles, conservation laws, flow properties, system- control volume approaches, Reynolds Transport theorem. Governing equations: conservation of mass, linear momentum and energy equations. Bernoulli equation and its applications. Flow of real fluids: Newtonian fluids, Navier- Stokes equations. Application for incompressible flows, laminar - turbulent flow definitions, and application to pipe flows.
Potential flow theory, complex potential function, flow around a cylinder, formation of lift, Kutta-Joukovsky theorem, conformal mapping, Joukovsky airfoil, definition of aerodynamic coefficients, Panel Method. Thin airfoil theory, Kutta condition, Kelvin's circulation theorem, symetrical and cambered airfoils, lift curve slope and zero lift angle of attack, flapped airfoil. Finite wing , lifting line theory, elliptic and general wing loading. Slender wing theory, pressure distribution, aerodynamic coefficients.
Workshop practice;aircraft maintenance,repair,parts production.
Numerical solution of Ordinary Differential Equations (ODE), initial value problems, Euler's method, Runge-Kutta methods, multi-step methods, stability analysis, systems of ODEs, boundary value problems. Numerical solution of partial Differential Equations(PDE): Finite Volume method, Finite Difference method, model equations, convergence, stability analysis, numerical solutions of parabolic PDEs, elliptic PDEs, hyperbolic PDEs.
Basic concepts. One dimensional steady-state conduction, extended surfaces, two-dimensional steady-state conduction, shape factors, transient conduction. Forces convection, Reynolds analogy, convection for external and internal flows. Free convection, boiling and condensation, heat exchangers. Radiation heat transfer between surfaces, basic concepts of mass transfer.
Introduction to propulsion systems. Aerothermodynamics of propulsions systems (Carnot, Brayton, Otto cycles; Mixtures; Combustion; Equilibrium and Dissociation). Reciprocating engines. Rocket Engines. Ideal engine cycle analysis.
Compressible flow, normal and oblique shock waves, Prandtl-Mayer expansion wave. Subsonic Compressible Flow over Airfoils; Linear Theory, Linearized Supersonic Flow. 2D Boundary layers, concept and governing equations, similar flows and similarity transformation, Blassius problem. Integral methods of solution. Laminar and turbulent flows, stability and transition. Turbulence and transition. Turbulent boundary layers, Law of the wall and various turbulence models, Prandtl mixing length concept. Combined B/L along a flat plate, separation and stall, B/L on airfoils.
Concepts of stress and strain in 3-D. Transformations of stress and strain in 2-D and 3-D. Stress-strain and strain-displacement relations. Generalized Hooke's law. Energy methods. Castigliano's theorem. Problems in two-dimensional elasticity. Plane stress and plane strain applications. Polar coordinates. Torsion of noncircular bars. Axisymmetrically loaded members. Rotating disks, thin and thick cylinder applications.
Main structural elements in aircraft and spacecraft. Long, flexible space trusses. Torsional and flexural analysis of open and closed section box beams. Bending of unsymmetrical sections. Rib analysis. The stability of long and short columns: dimensionless stress-strain curves. Local buckling, crippling. Buckling of plates under combined loading. Effective-width analysis of post-buckled plates. Cozzone method. Round tubes under combined loading.
Longitudinal static stability and control, maneuverability. Lateral static stability and control. General equations of unsteady motion. Stability derivatives. Stability of uncontrolled motion.
Summer training at workshops of industry such as T.U.S.A.Ş.;T.H.Y.,etc.
AE402 Aircraft Instruments and Measurement
Description of physical data. Deterministic and random data. Static and dynamic characteristic of measuring instruments. Error analysis. Gyroscopic transducers. Flight instruments. Navigation and communications.
Performance of engine components, Non-ideal cycle analysis of turbojet, turboprop, turbofan, and nozzles. Axial and radial compressors and turbines. Combustion chamber, Engine off-design performance.
AE451 Aeronautical Engineering Design
Conceptual design of fixed wing aircraft. Aircraft sizing. Airfoil and geometry selection. Thrust to weight ratio and wing loading. Configuration layout. Propulsion and fuel system integration. Landing gear and subsystems. Weights and balance. Stability, control and handling qualities. Performance and flight mechanics. Cost.
Free and forced vibrations of single degree-of-freedom undamped linear systems. Types and characteristics of damping and its effects on the response. Two degree-of-freedom systems. Coordinate transformation. Coupling. Free vibration, response to harmonic excitation. Multi degree-of-freedom systems. Eigenvalue problem, modal vectors and orthogonality. Vibration of continuous systems. Transverse vibration of beams. Effects of boundary conditions on the response. Vibration measurement and isolation.
AE384 Automatic Control Systems I
Feedback control systems; review of stability, linearization, and performance specifications in time domain; root locus plotting techniques, time domain design of feedback systems via root locus, use of compensators; PID and PDF control; Bode plot, Nyquist plot, frequency domain analysis of control systems, performance specifications in frequency domain; design of compensators in frequency domain. Introduction to modern control.
AE422 Aerospace Systems Engineering
Review of evolution of systems engineering discipline. Introduction to the concepts of system life cycle and life cycle cost. System design development and qualification through systems engineering process, system modeling methods development of functional, physical and operational architectures, system integration and interface management.
AE442 Introduction to Rocket Technology
This course provides introductory information for rocket/missile design, development, integration, operational characteristics and problems of full- scale missiles affected by the dynamics of environment. Determination, analysis and processing of missile trajectory including different flight condition are discussed
AE443 Computational Aerodynamics
Simplification of the Navier-Stokes equations for steady, attached flows. Integral formulation of potential flow equations for subsonic flows, panel methods, inverse airfoil design using a panel method. Method of Characteristics in two dimensional potential flows. Numerical solution of the Transonic Small Disturbance equation using Finite Difference methods, upwind differencing in supersonic regions. Numerical solution of unsteady Full Potential Flow equation in curvilinear coordinate systems.
General characterization of hypersonic flow, inviscid hypersonic flow, viscous hypersonic flow, high temperature effects.
AE446 Introduction to Helicopter Aerodynamics and Helicopter Design
Introduction: Helicopters in general, critical parts of helicopters, types of helicopters. Rotor in vertical flight(momentum theory).Rotor in vertical flight(blade element theory). Mechanisms of rotor. Forward Flight: Momentum theory, blade element theory. Performance and Trim-Stability: Helicopter design, blade section design, blade tip shapes, rear fuselage upsweep, second harmonic control. Design assignment
AE452 Aeronautical Engineering Design II
Preliminary and detail design of aircraft. Demonstration of the design by manufacturing a reduced scale fyling model of the aircraft. Use of computer aided design tool for sizing, trade off and configuration layout studies. Landing gear design, integration of propulsion system, and structural design. Calculation of moments of inertia, weights and balance, center of gravity of the design. Static and dynamic stability, control characteristics and performance prediction of the aircraft.
AE453 Introduction to Atmospheric Physics I
Gravitational Effects. Properties of Atmospheric Gases. Properties and Behaviour of Cloud Particles. Solar and Terrestrial Radiation
AE454 Introduction to Atmospheric Physics II
Transfer Processes and Applications. Geomagnetic Phenomena. Atmospheric Signal Phenomena: General properties of waves, scattering of radiation, atmospheric probing, natural signal phenomena, and effects of nuclear explosions.
AE462 Design of Aerospace Structures
Airworthiness requirements. Minimum weight design of columns, beams and torsion members. Design for combined loading. Load factors, distribution of loads in an aircraft structure. Ultimate load analysis and design of wing box beams and idealized fuselage cross-sections. Aeroelastic and fatigue considerations in aircraft design. Structural requirements and concepts for manned and unmanned spacecraft. Design of such craft for very high temperature loading.
AE464 Finite Element Applications in Aerospace Structures
Finite element method. Element characteristic matrix. Element assembly and solution for unknowns. Structure stiffness equations. Element stiffness equations. Assembly of elements. Node numbering boundary conditions. Stress computation. Principle of stationary potential energy. Rayleigh Ritz method. Finite element form of the Rayleigh Ritz method. Shape functions. Introduction to CAD/CAE FEM packages. FEM applications in CAD/CAE. Common element types used in aerospace structures. Finite element modeling techniques used in aerospace structures.
AE469 Mechanics of Composite Materials
Fiber-reinforced composites. Micro and macromechanical lamina analysis: Stress strain relations for a lamina. Laminate constitutive equations. Lamina and laminate strength analysis. Buckling of laminated plates. Tailoring of fibrous composites. Manufacturing and testing of laminated elements.
Performance characteristics of aircraft engines. Inlet, compressor, combustor, turbine and nozzle design; component matching. Discussion of various engine types including turbojet, turbofan and turboprops. Future design, liquid, solid and hybrid propellants, optimization and losses.
Functional requirements of aerospace propulsive devices. Mission analysis. Fundamental performance relations. Rocket propulsion systems for launch, orbital, and interplanetary flight. Modelling of solid, liquid-bipropellant, and hybrid rocket engines. Engineering and environmental limitations. Propellant feed systems,turbopumps. Combustion processes in liquid, solid and hybrid rockets. Thermochemistry, prediction of specific impulse. Nozzle flows including real gas and kinetic effects.
AE483 Automatic Control Systems II
State equations, eigenvalues, eigenvectors, stability, controllability, observability; state space approach to control system design, state variable feedback, eigenstructure assignment, state observation, model following control, introduction to optimal control, linear quadratic regulator.
AE484 Inertial Navigation Systems
Basic navigation quantities and functions; coordinate transformations and kinematics; a unified inertial navigation analysis applicable to both gimballed and strapdown systems; propagation of bias errors through the system; physics of inertial measurements and measurement error sources; navigation analysis with multiple sensors; Kalman filter estimation (linear system, known model); practical navigation problems.
Coordinate systems and transformations, Euler equations, torque free motion of spinning bodies, introduction to analytical dynamics, generalized coordinates, constraints, work and energy, orbital motion, orbital parameters, common satellite orbit types, orbital maneuvers.
Prerequisites: AE 262 DynamicsAE489 Computer Assisted Analysis of Aircraft Performance, Stability and Control
Review of the equations of motion of a rigid aircraft. Definition and evaluation of stability derivatives. Derivation of transfer functions for stick fixed flight. Computerised analysis of longitudinal static and dynamic stability and control characteristics of an aircraft. Computerised analysis of lateral static and dynamic stability and control characteristics of an aircraft. Performance equations of an aircraft. Computerised analysis of point, path and take-off performance characteristics of an aircraft. Computer project for the analysis of a sample aircraft.
Updated on Wednesday, 25-Apr-2007 11:32:48 EEST