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Transport Between House and Pond

This project explores the design of a transport cart that effectively connects a house and pond. The updated cart measures 3' x 4' x 3' and features rollers set at a pitch angle of 35 degrees, along with stabilizing cables positioned 2 feet below the cart. Transparent walls and floor enhance visibility, and a gate allows for smooth loading and unloading. Structural analysis indicates improved stability, with added support cables reducing oscillation by 3-5 degrees. The design addresses previous vulnerabilities while optimizing the natural frequency of the system.

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Transport Between House and Pond

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  1. Seed Project 2010 Christopher Abbott-Koch Lance Nichols Daniel Sturnick Transport Between House and Pond

  2. Updated Cart Design • 3’ x 4’ x 3’ design • Rollers set at pitch angle of 35o • Stabilizing Cable Rollers set 2’below cart • Transparent Walls and Floor. • Gate deploys into a loading/unloading ramp.

  3. Scruton number m = mass of cable per unit length (kg/m) ζ = damping as ratio of critical damping ρ = air density (kilograms per meters cubed (kg/m3)) D = cable diameter (m) The oscillation amplitude of vortex shedding vibrations varies roughly in inverse proportion to the Scruton number.

  4. New Challenges • Our original design consisted of a rolling cart guided by two rigid steel cables. • Structural Analysis – Eric Hernandez • Stability of design will be a flaw • More cables for added stability • Natural frequency of the system

  5. Model Oscillation Testing • Four Connection Points • Vulnerable to low to moderate oscillations • Natural Frequency

  6. Model Oscillation Testing Support Cables • Six Connection Points • Tension is put in the support cables • Degree of Oscillation drastically reduced 3-5 Degrees 3-5 Degrees

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