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The following figure shows a rotating system in which the shaft is supported in bearings at A and B. The three masses m...
As shown in the figure below, two masses are attached on a rotating shaft. mi 15 kg @60 at a 15-cm radius, and m2 20 kg @270° at a 12-cm radius. Determine the magnitudes and angles of the balance masses needed to dynamically balance the system. The two balance masses are placed in planes A and B, respectively, and with 12-cm radius. m1 mi 15cm 20cm |25cm m2 m2
MECHANICS OF MACHINES AND VIBRLTIONS 3I PART B (Answer ALL Question)w JAWA OKL QUESTION3 Figure Q3 shows a shaft carrying an electric motor C of mass 40 kg and two rotors A and B with 10 kg mass each. The motor, shaft and rotor are supported by two bearings L and R; and the motor is rotating constantly at 600 rpm. It is found that the shaft, motor and rotor are initially totally balance. What do you understand by the...
machine elements QUESTION-3 Shaft shown in the figure is supported by A and C bearings. Bearing A has 4300 N radial and 1400 N axial force due to the tooth force of the gear wheel on the shaft. Only a radial force of 3100 N acts on bearing C. The shaft diameters are the same in the region where the A and C bearings are located and dA = dC = 35 mm The rotation speed of the spindle is...
Figure 3 4. Figure 4 shows a 1.5 in diameter shaft supported by self-aligning ball bearings A and B. There are two chain sprockets, which are attached to the shaft and loaded as shown. Determine the force F. Model this shaft as a simply supported beam. Determine the bearing reactions RA and RB. (OC: A, E), (Ans: RA 1083.3, RB 1916.67 lb,) SHAFT SPROCKET # \ SPROc KET+#2 2 in, 2000 lb 3 in. 4 in. Sin Figure 3 4....
The rotating solid steel shaft is simply supported by bearings at points B and C and is driven by a gear (not shown) which meshes with the spur gear at D, which has a 150-mm pitch diameter. The force F from the drive gear acts at a pressure angle of 20°. The shaft transmits a torque to point A of T 400 N m. The shaft is machined from steel with S, 420 MPa and Su 560 MPa. Using a...
Please answer A and B. The rotating solid stedl shaft is simply supported by bearings at points B and C and is driven by a gear (not shown) which meshes with the spur gear at D, which has a 150-mm pitch diameter. The force F from the drive gear acts at a pressure angle of 20. The shaft transmits a torque to point A of TA-340 N m. The shaft is machined from steel with Sy- 420 MPa and Sut-560...
answer with steps please 4. Figure below shows a rotating shaft simply supported in ball bearings at A and D and loaded by a nonrotating force F of 6.8 kN. The shaft is made AISI/SAE cold drawn 1050 steel, estimate the life of the part. 550 C 400 B - 6.8 EN 75 -100 - 250 --- -125 Stress amplitude (MPa) 10 10 10 10 10 Fatigue life cycles) 10
Figure Q3 (a) shows a solid 40 mm diameter steel shaft which is supported by smooth bearings at B and D. It is coupled to a motor at C, which delivers 6 kW of power to the shaft while it is turning at 50 Hz. The modulus of rigidity of steel is 80 GPa. The shaft is free to turn in its support bearings at B and D. If gears A and E consume powers of 2 kW and 4...
Figure 3 4. Figure 4 shows a 1.5 in diameter shaft supported by self-aligning ball bearings A and B. There are two chain sprockets, which are attached to the shaft and loaded as shown. Determine the force F. Model this shaft as a simply supported beam. Determine the bearing reactions RA and RB. (OC: A, E), (Ans: RA 1083.3, RB 1916.67 lb,) SHAFT SPROCKET # \ SPROc KET+#2 2 in, 2000 lb 3 in. 4 in. Sin
Q2 (b) The layout of a shaft carrying two pulleys 1 and 2, and supported on two bearings A and B is shown in Figure 2.2. The shaft transmits 7.5 kW power at 360 rpm from pulley 1 to pulley 2. The diameters of pulley 1 and 2 are 250 mm and 500 mm respectively. The masses of pulley 1 and 2 are 10 kg and 30 kg respectively. The belt tensions act vertically downward and ratio of the belt...