1. ASV Senior Design Project Midterm Report Fall 2012 Team: Leader: Daniel Becker Treasurer: Andrew Hinojosa Manufacturing: Samantha Palmer Design/Assembly: Bradley Shallcross

2. Two servos are connected Rangefinders are being added Xbee communication is in the development stage Integration between Car/Crane/ASV on the way Fabrication of Car

3. Logic for all the systems is still in the development phase. – Logic paths are ready for programming. – Need to learn the syntax of arduino to complete coding. Logic of the Car/Crane

4. Initial Search Pattern Car rotates 360° Duel sensors recognize if object is in front of car Car drives straight to object

5. Failsafe Search Grid Car drives straight until edge Car follows edge On reaching a corner car follows a sweep pattern

6. Current Status on Retrieval Mechanism Due to no funding the work on this area has been postponed The work already done will be a good basis for future semesters to work with.

7. Crane Progress Most of the structural material has arrived. Still waiting for the motors and belts/gears.

8. Displacement Analysis A CAD analysis has been conducted. Each design has benefits and disadvantages. We need to have the least weight possible while keeping rigidity.

9. “Cantaleiver Bar” or Supported? Weight: 2.72lb Deflection:.26” Weight: 3.57lb Deflection:.137”

10. 1” or 2” Diameter? Weight: 3.57lb Deflection:.137” Weight: 1.76lb Deflection: 2.34”

11. Counter balance or no? Weight: 3.57lb Deflection:.137” Weight: 4.89lb Deflection:.136”

12. Normal Force Bending moment Inertial Moment(Hallow pipe) Shear Stress Crane Stress Analysis

13. Normal Deflection Angular Deflection θ = L T / I p G = L T / (π D 4 /32) G Crane Deflection Analysis

14. Autonomous Surface Vehicle Gantt Chart

15. Autonomous Surface Vehicle Website For more information on the current project, visit: http://dasp.mem.odu.edu:8080/~a sv_fa12/index.htm

16. Questions?