The fan has a mass of 25 kg and is fixed to the end of a horizontal beam that has a
Chapter 22, Problem 22-53(choose chapter or problem)
The fan has a mass of 25 kg and is fixed to the end of a horizontal beam that has a negligible mass. The fan blade is mounted eccentrically on the shaft such that it is equivalent to an unbalanced 3.5-kg mass located 100 mm from the axis of rotation. If the static deflection of the beam is 50 mm as a result of the weight of the fan, determine the angular velocity of the fan blade at which resonance will occur. Hint: See the first part of Example 22.8.
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