A shaft supported between two bearings 750 mm apart, receives 12.5 kW power at 300 rpm through a coupling located to the left of left-hand bearing. It transmits the power to a belt pulley of weight 300 N and diameter 450 mm, which is located at 200 mm to the right of right-hand bearing. The ratio of belt tensions of tight and slack sides is 2:1. The belt tensions act in vertically downward direction. The shaft material has a yield strength of 300 MP & an ultimate tensile strength of 550 MPa . The combined shock & fatigue factor for bending & torsion are 1.5 & 1 respectively. Determine the shaft diameter using ASME code

Q: = 85 kpsi). It is A 1-in-diameter solid round bar is made of AISI 1040 CD steel (sy = 71 kpsi, Su…

A:

Q: A machine shaft, supported on bearings having their centres 750 mm apart, transmitted 185 kW at 600…

A: Given: The distance between bearings, L = 750 mm = 0.75 m The power transmitted by the shaft, P =…

Q: A spur pinion of pitch diameter 50 mm rotates at 200 rad/s and transmits 3 kW power. The pressure…

A: We have to solve above question  Given data  Pitch diameter =50mm Power =3kw Angular velocity =200…

Q: The outside diameter (in mm) of the 10/14

A: Given; A hollow shaft;  length,l=1m  Max permissible twist in the shaft is=10  Inner dia of the…

Q: A steel 0.75-in diameter shaft (G= 12,000 ksi) is subjected to the following torques in lb-ft: TA =…

A:

Q: A solid shaft of 20 mm radius is transmitting 2.5 kW with the frequency of 50 Hz. Calculate the…

A:

Q: Flat Belts. Two shafts 10 ft apart, with axes in the same horizontal plane, are to be connected with…

A: Two shafts 10 ft apart Power H = 25 hp n = 900 rev/min

Q: Problem 4. A 16-tooth 240 Bhn steel spur pinion having a pressure angle of 20° and rotating at 720…

A: Calculate the diameter of the gear. Dg=NgPg Here, Dg is the gear diameter, Ng is the number of teeth…

Q: Design and draw a neat sketch of a cast iron protective type flange coupling to transmit “P” kW at…

A:

Q: In the figure above, torques TI, T2 and T3 are applied, respectively, to discs A, B and C on the…

A:

Q: Design a muff coupling to connect two shafts transmitting 42 kW at 130 rpm. The permissible shear…

A: Answer: ◆ Design of shaft: Shaft diameter is 90 mm ◆ Design of muff: Outer diameter is 195 mm Length…

Q: A hydraulic cylinder with a bore radius of 100 mm and an outer radius of 200 mm has been designed to…

A: Given: Pressure = 200 Mpa To find: Radial and circumferential stress using Lame's equation Sketch…

Q: As seen in the figure, a construction machine is rotated by a drive mechanism consisting of…

A:

Q: Plot a torque diagram showing the internal torque in segments (1), (2) and (3) of the shaft. Show…

A:

Q: As shown in the Figure below, the speed of the transmission shaft is n=200 r/min, the input power of…

A: Speed of transmission shaft, n=200 rev/minInput power of A, PA=40 kWOutput powers,For B, PB=20 kWFor…

Q: Q1/A 6-in-wide polyamide F-1 flat belt is used to connect a 2-in-diameter pulley to drive a larger…

A: This question is related to the flat belts.The expression of angle of contact of the pulley.Here, C…

Q: A rotor having a mass of 5 Kg is mounted midway on a 0.01meter diameter shaft supported at the ends…

A:

Q: A vertical shaft is supported by two deep groove ball bearings as shown below. The shaft will be…

A: Here is the solution for the above question.

Q: . Determine the outside diameter of the shaft?

A: Given data, Inner diameter of the shaft,di=0.6 times the outer diameter,  Where, Modulus of…

Q: A single plate friction clutch with both sides of plate being effective is used to transmit power at…

A: Given:Outer radius, r2=10 cm or 100 mminner radius, r1=8 cm or 80 mmEngine speed, N=2000 rpmMaximum…

Q: (a) The tubular rotor shaft of a wind turbine shown in Figure 3(a) is of 50 mm and 40 mm outer and…

A: Given data Outer Diameter of Tubular shaft = Do = 50 mm = 0.05 mInner Diameter of Tubular Shaft = Di…

Q: (a) List down 2 assumptions needed in designing the shaft in Fig. 3. Design the minimum allowable…

A: DefinitionBending Moment:If an object undergoes a bend about its certain axis due to some tendency…

Q: A nylon-core flat belt has an elastomeric envelope, is 250 mm wide and transmits 50 kW at a belt…

A:

Q: A multi plate clutches an included angle of 90°. A multi plate clutch, has 2 discs the driving shaft…

A:

Q: Figure below shows a portion of a pump that is gear-driven at uniform load and speed. The 25 mm…

A:

Q: A steel rotor disc of uniform thickness 50 mm has an outer rim of diameter 800 mm and a central hole…

A: Givent=50mm=0.05md0=800mm=0.8mNo. of blades=200Weight…

Q: (b) (c) Calculate the hoop tension, Fe due to centrifugal force. b Find the torque, T due to the…

A: DefinitionHoop tension:Hoop tension, also known as hoop stress, is the stress that develops in the…

Q: A spur pinion of pitch diameter 50 mm rotates at 200 rad/s and transmits 3 kW power. The pressure…

A: Given:Power=3 kWpitch diameter=50 mmangular velocity of gear=200 rad/spressure angle of…

Q: A 1500 kg load is lifted by a hoist using a Ø1.5 m drum. The drum is driven by an electric…

A:

Q: For the gear mechanism in the figure: P1 = 4 kW, η1 = 1000 rpm, z1 = 18, z2 = 36, z3 = 54, z4 = 108,…

A: This question is solved with the help of gear ratio formulae.  Torque on gear 1,…

Q: Q4/A 40 kw power at 300 rpm is transmitted from 50 mm diameter shaft by means of two identical…

A: Given data: Power transmitted by the shaft (P) = 40 kW Speed of the shaft (N) = 300 rpm Diameter of…

Q: A single plate friction clutch with both sides of plate being effective is used to transmit power at…

A:

Q: A bearing is subjected to a radial force of 8kN and a thrust force of 3 kN. The values of X and Y…

A: Given: The shaft is subjected to radial force of Fr=8 kN and axial force of Fa=3 kN. The values of…

Q: Consider a double hook, thaving intermediate shaft of moment of inertia 3 g-m², the input and output…

A: moment of inertia (I)= 3 g-m2  intermediate shaft angle (α)=300  Input speed (N1)= 2400 rpm Torque…

Q: A motor provides 60 hp power to a wheel B. It rotates a solid shaft in AISI 1020 steel, 4 cm in…

A:

Q: What does the shear flow measure?

A: The shear flow is defined as the shear force per unit length in a thin walled perimeter. The…

Q: 15KW and 1200r.p.m motor drives a compressor at 300r.p.m through a pair of spur gears having 20°…

A:

Q: 25m (a) The tubular rotor shaft of a wind turbine shown in Figure 3(a) is of 50 mm and 40 mm outer…

A: Given data:- Inner diameter = 40 mm Outer diameter = 50 mm Torque = 2.5 kN-m Moment = 3.6 kN-m Find…

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.