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ASV Senior Design Project Midterm Report Fall 2012

ASV Senior Design Project Midterm Report Fall 2012. Team: Leader: Daniel Becker Treasurer: Andrew Hinojosa Manufacturing: Samantha Palmer Design/Assembly: Bradley Shallcross. Fabrication of Car. Two servos are connected Rangefinders are being added

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ASV Senior Design Project Midterm Report Fall 2012

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  1. ASV Senior Design ProjectMidterm ReportFall 2012 Team: Leader: Daniel Becker Treasurer: Andrew Hinojosa Manufacturing: Samantha Palmer Design/Assembly: Bradley Shallcross

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

  3. Logic of the Car/Crane • 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.

  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: 1.76lb Deflection: 2.34” Weight: 3.57lb Deflection: .137”

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

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

  13. Crane Deflection Analysis • Normal Deflection • Angular Deflection θ = L T / Ip G = L T / (π D4/32) G

  14. Autonomous Surface VehicleGantt Chart

  15. Autonomous Surface VehicleWebsite • For more information on the current project, visit: http://dasp.mem.odu.edu:8080/~asv_fa12/index.htm

  16. Questions?

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