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Question: homework assignment 227 a long shaft is supported by three...

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Homework Assignment 2.27 A long shaft is supported by three identical hydraulic bearings and meshs through gears with a shorter shaft supported by two identical bearings, as shown in Figure 2.58. Calculate the total damping moment acting on the short shaft, knowing Ni 64, N2 48, the bearing dynamic viscosity H 0.003 N s/m2, shaft diameters D, 1 cm, interior bearing diameters Do 1.1 cm, the length of long shaft bearings 4 cm, the length of short shaft bearings l2 2 cm, and angular velocity of long shaft ni 250 ro/min. Compare this moment with the one acting on the long shaft. Ni Shaft Gear Bearings Shaft Gear N2 Bearings FIGURE 2.58

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