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e-Zapper Mobilized Support for destroying IED’s

e-Zapper Mobilized Support for destroying IED’s. 1/C Emison, 1/C McHugh, 1/C Merrick, 1/C Schnappinger, 1/C Tang, 1/C White, 2/C Schwamberger Mentors: Prof. Nelson, Prof. Ziegler, CDR Hamilton, USN, CDR Nolan, USN, Steve Andrews of Technical Options and Mr. Delikat.

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e-Zapper Mobilized Support for destroying IED’s

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  1. e-ZapperMobilized Support for destroying IED’s 1/C Emison, 1/C McHugh, 1/C Merrick, 1/C Schnappinger, 1/C Tang, 1/C White, 2/C Schwamberger Mentors: Prof. Nelson, Prof. Ziegler, CDR Hamilton, USN, CDR Nolan, USN, Steve Andrews of Technical Options and Mr. Delikat Funded by ONR/EOD NSWC-Indian Head (Scott Stewart)

  2. 2007 Project Objective • Mobilize the e-Zapper system • Design a platform on which the e-Zapper can be mounted. • Determine the Power Requirements to run the e-Zapper These objectives have been divided into three sub-teams • Vehicle Dynamics • Power Generation • Heat Transfer and Radiation

  3. Loading and unloading the e-Zapper unit onto a platform suitable for transporting the system Problem Statement

  4. The Trailer

  5. SPECIFICATIONS: Loading Height 17\" Attic Interior Height 32\" Riser Wall Height 45\" Sidewall Height 6\'3\" Lower Deck Box Length 35\'8\" GVWR 21,600# Payload Capacity 13,293# Axles 7200# Triple Rear Door Height 72\" Rear Door Width 87-1/2\" Rear Doors Ramp Platform Height 22\" Interior Width 8\'0\" Box Height/OA Height 8\'5\" Box Width/OA Width 8\'4\"/8\'6\" Interior Length 44\'0\" Overall Length 44\'6\" Pace American: SHADOW SCXG8544TTA5K

  6. Loading and Unloading the e-Zapper • Using a simple ramp and track system, the e-Zapper can be placed on the tracks and winched up and down the ramp.

  7. The Concerns • Weight distribution within the trailer • The weight of the e-Zapper on the ramp • The strength of the rollers used • Aligning the rollers with the track • The angle of approach and high centering • The winch requirements • Fabrication of a front end support for e-Zapper

  8. Trailer Layout 44.5ft

  9. The Ramp System

  10. The Ramp Selected • Landsport company • COMBO  40,000 lb. Capacity*, 16-foot Ramp Modular that doubles as 20,000 lb. Capacity Load Levelers (Plenty of strength to support e-Zapper) • 4 segments, 8 feet long, 20 inches wide • Price: $1995

  11. Swivel top roller dolly 5,000 lbs capacity each Steel 8 (length) x 6 (width) x 4.5 (height) in. $240.00 per roller 6 rollers needed The Rollers

  12. Angle of Approach 16’ ramp 6.58o 23” vertical to the trailer bed *Figure not to scale

  13. Break Over Angle 22” 42o Giving a maximum angle of approach 48o, without bottoming out on the interface of the ramp and the trailer bed.

  14. The Winch Requirements F_gravity F_sliding 16’ Ramp F_normal 6.58o F_gravity= 9,200 lbs F_normal= F_gravity*cos(6.58)= 9,139 lbs F_sliding= F_gravity*sin(6.58)= 1,054 lbs F_total= 1785 lbs (F_sliding + F_static) *F_total is the force needed to move the e-Zapper up the ramp

  15. The Winch • $490.00

  16. The Front End Support • The need to design and fabricate a support for the front end of the e-Zapper • Must be the same width as the rear supports in order for the rollers to align with the track. • Bending and compression stresses need to be taken into consideration.

  17. Existing Roller Attachment Location Front End Support Attachment Location

  18. Front End Support: Display of Deflection Front End Support: Display of Loads and Restraints Front End Support: Display of Safety Factor

  19. To Be Done • Front Support • Already engineered, needs fabrication • To hold front end of e-Zapper • Load Distribution • U-Track System • Necessary for alignment of e-Zapper during loading and unloading • Precision is vital (1/16” tolerance recommended)

  20. Experiment Results Max Current Drawn: 85 Amps

  21. Generator Requirements • Sound Enclosure • 208 Volts- 3 phase power • 60 Hertz • 100 Amps

  22. Generator Selection Generator Selection Choices Caterpillar Baldor Cummins Kohler

  23. Generator Selection Table

  24. Final Selection Baldor  IDLC30-JD Industrial Diesel Liquid CooledGenerators (IDLC)Standby / Prime Power Final Cost = appx. $10200 + shipping with sound enclosure

  25. Trailer Layout 44.5ft

  26. Basic e-Zapper Coolant System Schematic e-Zapper Sump / heat exchanger Centrifugal pump *drawing not to scale e-Zapper Coolant Medium Sump Coolant Medium Sump Heater

  27. Chiller Specifications CHILLER TEMPERATURE REQUIREMENT: 13.3 kW

  28. Ranking Factors for Chiller Selection For Chillers: 1=worst, 9=best For Factors: higher number=more important For Total: Higher number=best choice

  29. Selected Chiller • Cold Shot ACWC-60-E • $ 6465

  30. 1 in lead mrem Iron pipes Electronics Cabinet E-Zapper Concrete Beamstop ½ in lead Simulated Operator Position

  31. Deliverable Costs • Chiller-$7,000 • Ramp system- $3,000 • Rollers- $1,500 • Generator- $20,000 • Trailer- $30,000 • Radiation Shielding- TBD • Load Cells- $1,500 • Winch and Jack- $1,500 • All money comes from ONR/EOD-NSWC-IH budget

  32. Questions?

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