SAND SAMPLING APPARATUS Eglin Air Force Base Gina Teofilak Richard Klimas Dan Mortensen Ruben De Sousa Outline Introduction Needs Assessment and Product Specification The Design Concepts Final Design Prototype Manufacturing and Assembly Testing and Data Analysis Cost Analysis/Budget Conclusion Outline Introduction 3 Target filled with 3000 lbs. sand Projectile shot through the target Documentation of virgin & impacted sand grain morphology Introduction 4 Fractured sand Projectile Target shot line Needs Assessment 5 Replace the archeological method for removing samples with a more efficient method. Take samples of impacted sand without disturbing the path Product Specifications 6 Removal of sand without disturbance Portable and detachable Able to withstand outdoor conditions corrosion/sand resistant Budget of $1500 7 Design Concepts VortexCore SamplingRotating Blades 8 Final Design Vacuuming Vacuum excess top layer down to the compacted path Vacuum a small layer of sand from path Obtain sample with sticky tape Vacuum next layer and repeat. 9 Final Design 10 Fabrication CNC to fabricate end plates and bearing holders Mill to construct side plates and lead screw nut Lathe to turn down lead screws and support rods 11 Prototype Manufacturing Y actuator is 24in x 8in Z actuator is 17in x 8in Z actuator mounted vertically onto the horizontally mounted y actuator Bearing holders and lead screw nut prevent binding and torque forces 12 Assembly Mechanism Vacuum Power supply Control Box 13 Testing Range (Top view) Layer Depth 1 4 Divisions Velocity Flat Layers Removal Time 3hrs AxisRange (in)Velocity (in/s) x y z101.87 14 Testing and Data Analysis 15 Cost Analysis/ Budget 16 Conclusion Removal of sand has been achieved Detachable frame Increased Efficiency Little to no disturbance of projectile path Happy Sponsor! Recommendations 17 Optimizations Full Automation Use of ESC Adjust Tip Design Increase range of motion Time Efficiency Inclusion of Electrical Engineer Conclusion Recommendations William Bill Cooper, MSgt Wes Schuler, LT Brad Breaux, Lalit Chhabildas AFRL/RW Munitions Directorate Air Force Research Laboratory Phil Metzger Granular Mechanics & Surface Systems Lab NASA, Kennedy Space Center Victor Giurgiutiu Air Force Office of Scientific Research 18 Acknowledgements 19 Testing and Data Analysis