Fall 2006
ME 440
Aerospace Engineering Fundamentals
Aerodynamics Lecture Examples
Example: Drag on a Vertical Stabilizer
Determine the drag on an aircrafts vertical stabilizer. We will assume that the
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Homework #4
Solution
Problem 1
Determine the thickness of the supporting structure for an engine to prevent
failure.
Width of engine structure: 0.5
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Homework #5
Solution
Problem 1
Determine the flow rate required for the following engine configuration to produce
5,000 Nt of thrust.
Aircraft Speed
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Homework #6
Solutions
Problem 1
Consider a turbojet engine using methane as fuel with 300% theoretical air. The
methane enters the afterburner as at
ME 440
Aerospace Engineering Fundamentals
Practice Problem Set #1
1. Estimate the drag on a helicopter flying at 3 km and 75 m/s.
0.5 m
1m
1m
2m
3m
The rear section has a square cross-section and the
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Practice Problems #2
1. Consider that the landing gear for an aircraft is a solid bar of fiberglass/epoxy
composite of square cross section. Determi
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Practice Problem Set #3
Solutions
1. Determine the thickness of a rectangular, solid balsa wood wing that will
sustain the drag force without breaki
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Propulsion Examples
Example: Compressor Turbine
Determine the outlet temperature and pressure for a turbine whose purpose is to
power the compressor
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Stability-Control Examples
Example: Pitch Control
Consider an aircraft flying at 100 m/s at 3 km with the following characteristics:
Aircraft mass:
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Structures Examples
Example: Deflection of a Wing
Determine the tip deflection of a solid rectangular wing of aircraft spruce under
the following co
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Homework #3
Solution
Problem 1
A four engine aircraft, two on each wing, suddenly loses the outside engine on the
right side. How should the thrust
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Homework #2 Solution
Problem 1
Estimate the drag force on the fuselage shown below for a cruising speed of 200
m/s at 10,000 m.
7m
8m
5m
30 m
Soluti
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Combustion Examples
Example: Combustion of Butane with Specified Air to Fuel Ratio
Butane is burned with air with 130% theoretical air. Balance the
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Compressible Flow Examples
Example: Compressible Flow Nozzle Analysis
Consider our simple turbojet example of our propulsion unit. We found that
ent
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Exam #1
Solution
Problem 1
Determine the deceleration a 1,600 kg aircraft will undergo when its three(3)
landing gears are lowered while flying at 1
Name: _
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Exam #1
Open Book, Open Notes
Problem 1
Determine the deceleration a 1,600 kg aircraft will undergo when its three(3)
landing gears are lowe
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Exam #2
Solution
Problem 1
The rectangular rudder on an aircraft is fully deployed, so as to make a right angle
with the vertical stabilizer as show
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Exam #2
Open Book, Open Notes
Student Name: _ PID: _
Problem 1
The rectangular rudder on an aircraft is fully deployed, so as to make a right angle
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Final Exam
Solution
Problem 1
A novel aircraft has its main wing mounted on a pylon above the fuselage as
shown below.
Determine the maximum height
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Final Exam
Problem 1
A novel aircraft has its main wing mounted on a pylon above the fuselage as
shown below.
Determine the maximum height of the py
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Homework #1
Solutions
Problem 1
Problem A-3.6 in text
Solution:
We begin by considering the drawing shown below:
To
Generator
External Air
Scoop
Out
Fall 2006
ME 440
Aerospace Engineering Fundamentals
Homework #1
Solutions
Problem 1
Problem A-3.6 in text
Solution:
We begin by considering the drawing shown below:
To
Generator
External Air
Scoop
Out