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A hollow shaft consisting of a steel tube of 50-mm outer diameter is to transmit 250 kW of power while rotating at a frequency of 30 Hz. Determine - (7 points) (a) the tube thickness that should be u...
A 20-mm-diameter steel shaft, made of AISI 1035 HR steel, transmits power while rotating at 400 rev/min. Assume any bending moments in the shaft to be relatively small compared to the torque. Determine how much power, in units of kW, the shaft can transmit with a static factor of safety of 1.5 based on (a) the maximum-shear-stress theory. (b) distortion-energy theory.
Problem # 2(7 points) hollow steel tube having external and internal diameter of 100 mm and 75 mm respectively is simply supported over a span of 5 m. The tube car concentrated load of W at a distance of 2 m from of the supports. What is the value of W, if the maximum bending stre if the maximum bending stress is not to exceed 100 MPa
Figure 1 shows the layout of countershaft used to transmit power to a blower through a pulley drive (4-5). Pulley (driving sheave) 4 has a diameter of 125-mm and pulley (driven sheave) 5 has a diameter of 75 mm. Pulley 5 is mounted vertically below pulley 4 (as shown in the figure). Belt tension on the loose side is 20% of the tension on the tight side. A power of 7.5 kW is transmitted via the gear set (2-3) from...