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SeniorDesignOrg-2011fall-T5-ProjectSummary

SeniorDesignOrg-2011fall-T5-ProjectSummary - SENIOR DESIGN...

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EML 4551 • Ethics and Senior Design Organization • Fall 2011 Florida International University • Department of Mechanical and Materials Engineering • Miami SENIOR DESIGN ORGANIZATION PROJECT DESCRIPTIONS Fall 2011 OPTIMIZATION OF A SOFT CATCH MECHANISM FOR A SHOCK LOADING AND RECOVERY SYSTEM A PROJECT SPONSORED BY THE US AIR FORCE RESEARCH LAB Team 5: David Hilton, Tomislav Kosta, Jose Garcia The goal of this project is to assist the United States Air Force Research Laboratory at Eglin Air Force Base, Florida, in modification of a shock loading and soft recovery system used for research in void nucleation in solids. This apparatus consists of two major systems, a 60 mm powder-fired cannon and a recovery system. The cannon, whose muzzle is located just inside a 3 m long target chamber, fires a projectile into a target assembly which is situated at the end of the cannons muzzle. The impact of the projectile with the target produces the shock load on the projectile which results in a “shock wave” in the projectile. The mass and impact velocity of the projectile varies widely based on the material of the projectile; however, projectile masses of 10 kg and velocities of up to 800 m/s are not unexpected. This projectile/target assembly then traverses the target chamber and impacts the soft recovery system. The current recovery system, a spaced metal plate array, permanently deforms both the target and the projectile, rendering post-experiment analysis on the projectile difficult or impossible. In addition, with every experiment a new spaced plate array must
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