From the following data, calculate the location of node from the left end of shaft (l1). l1=0.6m, l2=0.5m, l3=0.4m d1=0.095m, d2=0.06m, d3=0.05m Ma = 900 Kg, Mb = 700 Kg ka = 0.85m, kb = 0.55m

From the following data, calculate the location of node from the left end of shaft (l1). l1=0.6m, l2=0.5m, l3=0.4m d1=0.095m, d2=0.06m, d3=0.05m Ma = 900 Kg, Mb = 700 Kg ka = 0.85m, kb = 0.55m Correct Answer 0.855m

We know that for the system to be in vibration, the frequency should be same for all rotors therefore, LaIa = LbIb Where La is the length of the left end shaft. Substituting the values we get, l = 0.855m.
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