1. Embry-Riddle Aeronautical University, Prescott AZ LAR-E Lunar All-terrain Regolith Excavator Collecting and Dumping subsystem Stephanie Frederick

2. Overview Objectives Early ideas Revised designs Testing Interpretation

3. Objectives Constraints Weight Dimensions Power Time/speed Improvement ideas Number/size of teeth Number/size of openings Radius/length Servo Continuous spinning Materials Coating inside

4. Early Ideas Auger Scoop Multiple barrels Barrels along the length of the robot Two main decisions –Scoop VS barrel –Hopper VS no hopper

5. Objectives Constraints Weight Dimensions Power Time/speed Improvement ideas Number/size of teeth Number/size of openings Radius/length Servo Continuous spinning Materials Coating inside PHOTO CREDIT: http://www.google.com/products/catalog?q=servo&um=1&ie=UTF- 8&tbm=shop&cid=7566823009201425815&sa=X&ei=N1GGT9eJPOOd8AGx3oCwCA&ved=0CH8Q8gIwBg

7. Revised Designs 8 fixed openings Teeth 4 fixed openings Teeth

8. Testing Catia –Computer modeling Ansys –Structural strength –materials

9. Interpretation.5 mm maximum deformation 2 mm maximum deformation Analysis on openingAnalysis on teeth

10. Questions? Thank you for your time Special thanks: Dr. Ronald Madler Dr. Joe W. Yeol