Estimate the shaft diameter required to produce a critical speed of rotation of 638 rpm for a steel shaft of total length L= 44 in. that carries a center load of 111 lb as shown in the figure below. The shaft is located at C, as shown in Figures 1 and 3. Submit your answer in millimeters. L Steel shaft

Q: 4- Determine the required diameter of the solid shaft BC, if the allowable shearing stress is given…

A: The total torque on the shaft BC is T=5+10=15 kNm

Q: Compute the torsional shear stress in a circular shaft with a diameter of 50 mm that is subjected to…

A: GivenT=800 Nmd=50mm=0.05 mFormulaσT=16Tπd3

Q: A 39 in. tubular shaft is in torsion under a torque of 34 lb-in.. Its cross-section shown below as…

A:

Q: A solid shaft with diameter 3 in. is to transmit 139 hp. If the shaft shownis rotating at 300…

A: Given      Power, P = 139 hp Diameter, d = 3 in = 0.0762 m     Speed, N = 300 rev/min Find   Shear…

Q: A standard 25-HP electric motor operates at 1800-RPM. If the motor is connected to a pump in the…

A: The power available, P = 25 hp The speed of motor, N = 1800 rpm The diameter, d2 = 1.25 in The…

Q: C 8 10 Determine the maximum torque that can be transmitted by (a) the shaft as designed, (b) a…

A:

Q: The shaft shown in the figure is machined from AISI 1040 CD steel. The shaft rotates at 1600 rpm and…

A:

Q: A hollow steel shaft, 500 mm outside diameter and 300 mm inside diameter, has a coupling 80 mm thick…

A: Given data: Outside diameter of hollow shaft = 500 mm                    Inside diameter of hollow…

Q: What is the minimum diameter of a solid steel shaft that will not twist through more than 3°…

A: Given data:- Angle of twist =3° Length of the shaft =6 m Torque applied =14 kN-m. G = 83 kN/m2 To…

Q: A solid circular shaft is subjected to a torque of 21,334 in-lb.  Calculate the diameter required if…

A:

Q: Both shafts have the same diameter-2cm and are made of low quality steel G-77 GPa. A torque of 1200…

A:

Q: A hollow shaft with a length of 1103mm and outer diameter 73mm and inner diameter 50mm is required…

A:

Q: A solid shaft with diameter 3 in. is to transmit 129 hp. If the shaft shownis rotating at 300…

A: Given data:- A solid shaft with diameter (d)= 3 in Power transmit (P)=129 hp Speed (N)= 300 rev/min,…

Q: Select the diameter for a solid steel shaft that is to transmit 60 HP at 850 rpm without exceeding…

A:

Q: For the steel shaft shown in Fig. Determine the maximum torque transmitted by any transverse cross…

A: The free-body diagram of the beam can be drawn as, Applying the torque balance,…

Q: A non-rotating shaft shown in the figure is machined from AISI 1020 CD steel. It is subjected to a…

A: The factor of safety. FBD: The free-body diagram is shown below.

Q: naft has a diameter of 41mm. The PCD of the coupling bolts is 63mm. amter is 3mm, and the yield…

A: Given data-T=354Nm  D=41mmPCD=63mm

Q: A motor transmitting 60 kW at 600 rpm drives a solid steel shaft ABC with a diameter of 50 mm. The…

A:

Q: The shaft shown in the figure is machined from AISI 1040 CD steel. The shaft rotates at 1600 rpm and…

A: Shaft speed, N=1600 rpmApplied forces, F1=1600lbfF2=640 lbfTorque, T=1600 lbf·inMinimum Shaft…

Q: Figure 1 is presented the solid shaft AB rotates at 650 rpm and transmits 30 kW from the motor…

A: To find: The smallest permissible diameter of the shaft. Given: The speed of shaft AB is NAB=650…

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.