Hassan
Bujayli
Analysis
Proposed Solution for Launcher:
For the launcher design there are two phases, throw phase and ascent phase: throw phase is to get the paper airplane gliding as high as possible. In order to achieve this, launching the paper airplane as fast as possible, straight up will be required. The force of gravity and the force of drag will slow it down as it ascends. Thus, the throwing phase to maximum height will ensure the transition to gliding flight and the throw should be within 10° of vertical. Ascent phase is meant to control the angle of attack to be near to zero, which will result in zero lift to allow the paper airplane to fly vertically. To determine the launch energy required, kinetic energy equation will be used (.5*mass*v^2), potential energy =(mgh), and drag force = (.5*ρ*v^2*CD*A).
Scope of Effort:
The scope of effort of this project is to create a mechanism for launching projectiles compatible with frame integration and limitation.
Description of Projectile Launcher:
The projectile launcher is a device that can launch paper airplanes at angles between 0-10 degrees and over distance up to 10 m.
Function Statement:
The statement function of the project is to design a device to launch paper airplanes to a maximum distance.
Benchmark:
In order to create the launcher device there is a similar device to launch paper airplanes
by using Legos and gears. Two motors attached with shafts and tires will be used to launch the paper airplanes to improve the performance of the device.
Success of the Project:
The success of this project is the final performance of the whole system at ASME competition when the machine creates the three designs of paper airplanes and launches it to the desired distance to win the competition.
Analysis:
Paper airplane with wing area that calculated to be 0.07 m2 needs to be launched with a
speed of 28.28 m/s at least to achieve the desired distance. Angle of launch is important to make the paper airplane fly as far as possible. The drag force is also calculated to be 0.0883 N. Glider is important key to make the paper airplane glide as far as possible.
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