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1E10 JF Induction Mechanical & Manufacturing Engineering

1E10 JF Induction Mechanical & Manufacturing Engineering. 1E10 Engineering Design II “The Mighty Roman Mangonel”. Dr. Gareth J. Bennett. Objective. A small model Mangonel. Objective. Can we predict the distance?. Objective. A larger version!. Objective.

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1E10 JF Induction Mechanical & Manufacturing Engineering

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  1. 1E10 JF InductionMechanical & Manufacturing Engineering 1E10 Engineering Design II “The Mighty Roman Mangonel”. Dr. Gareth J. Bennett Dr. Gareth J. Bennett Trinity College Dublin

  2. Dr. Gareth J. Bennett Trinity College Dublin

  3. Objective A small model Mangonel Dr. Gareth J. Bennett Trinity College Dublin

  4. Objective Can we predict the distance? Dr. Gareth J. Bennett Trinity College Dublin

  5. Objective A larger version! Dr. Gareth J. Bennett Trinity College Dublin

  6. Objective What are the factors that control the distance? (The dynamics) Dr. Gareth J. Bennett Trinity College Dublin

  7. Operate Design Implement Conceive Design Project – Mangonel Dr. Gareth J. Bennett Trinity College Dublin

  8. Operate Design Implement Conceive Design Project – Mangonel Dr. Gareth J. Bennett Trinity College Dublin

  9. Operate Design Implement Conceive Design Project – Mangonel Dr. Gareth J. Bennett Trinity College Dublin

  10. Operate Design Implement Conceive Design Project – Mangonel • Work in teams • 4 streams A, B, C, D • 10 groups per team • 3/6 students per team • Many locations for project work for Tuesday (C&D) and Thursday (A&B) mornings • Lectures on a Friday at 2pm: Everyone to attend Dr. Gareth J. Bennett Trinity College Dublin

  11. Dr. Gareth J. Bennett Trinity College Dublin

  12. Friday Lectures Dr. Gareth J. Bennett Trinity College Dublin

  13. Operate Design Implement Conceive Design Project – Mangonel • Work in teams • 4 streams A, B, C, D • 10 groups per team • 3/6 students per team • Many locations for project work for Tuesday (C&D) and Thursday (A&B) mornings • Lectures on a Friday at 2pm: Everyone to attend • Dedicated demonstrators per location • Continuous assessment based on assignments • Work Carried out in groups and individually. When assignments are to be submitted individually work is not to be copied! Dr. Gareth J. Bennett Trinity College Dublin

  14. Study the dynamics of a Mangonel! Understand the parameters that effect the dynamics of the missile Be able to predict the trajectory and distance of a missile thrown Have an understanding of energy exchange between the Mangonal and the missile Use this knowledge to be able to optimise the design Modules within project Dr. Gareth J. Bennett Trinity College Dublin

  15. Operate Design Implement Conceive Design Project – Mangonel Dr. Gareth J. Bennett Trinity College Dublin

  16. Study the stress and strain of elements of the model We want to be able to fire the missile as far as possible, however, excessive forces will cause the Mangonel to break. From the structural analysis, can we optimise the design for strength and power? Modules within project Dr. Gareth J. Bennett Trinity College Dublin

  17. Operate Design Implement Conceive Design Project – Mangonel • Structural Analysis • Can design • Diameter of arm • Diameter of spindle Dr. Gareth J. Bennett Trinity College Dublin

  18. Electronic instrumentation Design instrumentation which will allow the angular velocity and acceleration of the arm to be measured. Consists of Sensors fitted to Mangonel Logic design to control sensor outputs Software design of micro-processor Assembly and operation of instrumentation to measure parameters on electronic display. Modules within project Dr. Gareth J. Bennett Trinity College Dublin

  19. Operate Design Implement Conceive Design Project – Mangonel • Measure Arm Velocity • Instrumentation • Software • Hardware • Result is a useful measurement tool! Dr. Gareth J. Bennett Trinity College Dublin

  20. Build and Test the Mangonel The output from the other modules will allow us to optimally design the Mangonel Some components pre-assembled, you have to finish the model implementing your design choices Operate the Mangonel Competition at end! Modules within project Dr. Gareth J. Bennett Trinity College Dublin

  21. Operate Design Implement Conceive Design Project – Mangonel Gareth J. Bennett, Christine Bohan, "Taking a practical approach to very ancient weaponry". Special report on Science, Engineering and Technology. The Irish Times, 2008 Dr. Gareth J. Bennett Trinity College Dublin

  22. Dr. Gareth J. Bennett Trinity College Dublin

  23. Dr. Gareth J. Bennett Trinity College Dublin

  24. Dr. Gareth J. Bennett Trinity College Dublin

  25. Assignments Submit via WebCT 2/3 weeks after the lab-will be announced. DO NOT email to me Late submissions marked out of 70% Passwords Keep on top of them – tricky. Your responsibility Use TCD Password Manager: http://isservices.tcd.ie/accounts/pwd_manager.php Go to help desk of IS Services for help General Notes Dr. Gareth J. Bennett Trinity College Dublin

  26. Good luck! Dr. Gareth J. Bennett Trinity College Dublin

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