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ps10 (1)

# ps10 (1) - M A SSA C H U SE T T S I NST I T U T E O F T E C...

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M ASSAC HUSE T T S I NST I T UT E OF T E C HNOL OG Y Day 26 11 am, Day 28

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1. You did problems 6-45 and 6-52 in homework number 9. Show the equations of motion. Find the undamped natural frequency in 6-45 and the undamped natural frequency and damping ratio expression in problem 6-52. 2. Do problem 6-61. a. Determine the undamped natural frequency. b. Find an expression for the damping ratio. 3. Do problem 8-11. In part a. clearly indicate your choice of coordinate system and show your equation of motion. In part b. assume 1.5% damping and plot the resulting motion. 4. Do problem 8.13 and determine the natural frequency, as well as the maximum possible amplitude. Assume the block vibrates at its natural frequency in the problem. They neglect to say that in the problem. If the large block vibrates at one half of the maximum possible amplitude, what is the magnitude of the friction force between the large and small blocks. 5. Estimate the natural frequency of the Sea Star TLP in heave. Data on the TLP will be given out on Day 27.
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