2 MEE231V OCT/NOV 2018 Question 1 A shaft is simply supported and loaded as shown in Figure 1 Calculate the first two critical frequencies of the shaft The load on the left edge of the shaft is 29 4 N and on the right hand side is 25 N The shaft has a diameter of 22 mm IK R₁₂ R₁ k 4 1: Figure 1 Assume the following The shaft material is steel hence the Young's Modulus is 200 GN/m² There is no deflection at the bearings and the shaft mass is negligible п [30]