III. How a plane can fly assuring safety ? 3. Flight at high altitude Session 3: Ice ProblemsSession 3: Ice Problems
Objective 1: Explain problems and solutions in case of ice conditions
Objective 2: Give an insight in the today applied research on ice problems in aeronautical field
Explanation:
The teaching materials will utilized to give essential concepts of problem due to ice accretion on an airplane surface and solutions for it.
Material:
- Multimedia black board + Power Point Like Software
- Photos / Videos
Figure 8 Ice on a model in a wind tunnel
Figure 9 Simulation model for ice problems
Main activities
- By utilizing photos and eventually videos the students will learn technology concerning ice accretion on a flying airplane
- Student will be asked to figures out analogy with similar events in every day live
Maximum duration:
60 minutes
Main question to be asked:
- What is the impact of ice accretion on air transportation safety?
- Ask to the students why high altitude clouds are not yet transformed in ice
Developing of Activity
- Explain to the students which problems ice accretions on airplane could cause
- Make the students to compare ice problems in a flying airplane with every days similar problems
- Make the students to figure out suggestions for solutions of the ice problem
Results of Activity
- To explain that ice accretion could cause stall problems, loss of controllability, engine flame out or even engine explosion, failure on flight strumentations
- To show to the students the different devices to face ice accretion
Experiment 2: Bow and arrow
Description
- Make a student to lunch an arrow with a bow.
- Ask the student to tell forces and deformations in each part of the system (included) the arm and the hand of the archer.
Figure 16 Bow and arrow
Explanation
In a system like a bow and arrow loads acts as: compression, traction, bending moment, torque moment, etc. Each of them cause on a single system element deformation as: shortening, lengthening, bending, etc...
Results
The aeronautical structures are subject to different kind of loads. So they have to be designed and manufactured so that they would be able to withstand all kind of loads.
