It is important to understand the difference between area moment of inertia and mass MOI and when to use each. Do the following: A) From 1 C) above, if the steel rod has a radius=2 in, and L=6 in, what is the torsional stiffness of the rod, Krod? B) from 1 C) above, if the radius of the aluminum wheel is 4 inches, and the wheel thickness is t=0.5 in, what is Jp? C) Using these values, determine the undamped natural frequency of the system.




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It is important to understand the difference between area moment of inertia and mass MOI and when to use each. Do the following: A) From 1 C) above, if the steel rod has a radius=2 in, and L=6 in, what is the torsional stiffness of the rod, Krod? B) from 1 C) above, if the radius of the aluminum wheel is 4 inches, and the wheel thickness is t=0.5 in, what is Jp? C) Using these values, determine the undamped natural frequency of the system.


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