Project Scope
The objective of the project is to design a mechanism to unravel a wire that trails free falling and powered projectiles. The wire is used to relay information concerning the projectiles mission progress in order to obtain battle damage assessment. The foremost flaw in the present design is that the wire snaps from the quick change in acceleration (jerk) of the projectile. Velocities of 1000fps are expected and the strength to weight ratio is of utmost concern.
Current guidelines include the design or redesign of the spools. One penetration spool that will hold 60 feet of wire and one aboveground spool which will hold 200 feet of wire. The wire can be chosen from a wide variety, however a coaxial cable was suggested. The specs to work around are a 5-inch maximum diameter for the above ground spool and 3.5 inches maximum for the penetration spool. A parachute deploys the aboveground spool, and a stripper plate attached to the tail kit is responsible for unwinding the penetrating weapon spool.
We will deliver a wire that can withstand the life of the bomb. Accomplishing this means that the strength of the wire is high enough to take the forces associated with deploying the attached parachute. We also will deliver a mandrel design. There will be sketches in Pro-E and a prototype as well. We have full confidence in completing successful tests for all of our designs. If possible, an animation of the wire unraveling with an accurate force will also be one of our deliverables.
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