A shaft made of mild steel is required to transmit 100 kW at 300 r.p.m. The...
A shaft made of mild steel is required to transmit 100 kW at 300 r.p.m. The supported length of the shaft is 3 metres. It carries two pulleys each weighing 1500 N supported at a distance of 1 metre from the ends respectively. Assuming the safe value of stress, determine the diameter of the shaft.
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A shaft made of mild steel is required to transmit 100 kW at 300
r.p.m. The...
A hollow shaft is to transmit 20 kW at 300 rpm. The loading is such that...
A hollow shaft is to transmit 20 kW at 300 rpm. The loading is such that a maximum bending moment of 1000 Nm is induced in the shaft, together with an additional axial thrust of 15 kN. The shaft is supported on bearings 1500 mm apart. The values of shock and fatigue factors in torsion and bending (Kt and Kb) are 1.25 and 1.75 respectively. The inside diameter is 0.8 times the outside diameter. Determine the outer diameter of the...
Fig. 14.17 A line shaft is to transmit 30 kW at 160 r.p.m. It is driven...
Fig. 14.17 A line shaft is to transmit 30 kW at 160 r.p.m. It is driven by a motor placed directly under it by means of a belt running on alm diameter pulley keyed to the end of the shaft. The tension in the tight side of the belt is 2.5 times that in the slack side and the centre of the pulley over-hangs 150 mm beyond the centre line of the end bearing. Determine the diameter of the shaft,...
A pair of bevel gears is required to transmit 11 kW at 500 r.p.m. from the motor shaft to another...
A pair of bevel gears is required to transmit 11 kW at 500 r.p.m. from the motor shaft to another shaft, the speed reduction being 3 : 1. The shafts are inclined at 60º. The pinion is to have 24 teeth with a pressure angle of 20º and is to be made of cast steel having a static stress of 80 MPa. The gear is to be made of cast iron with a static stress of 55 MPa. The tooth...
Show all steps A shaft rotating at 200 r.p.m. drives another shaft at 300 r.p.m. and...
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A shaft rotating at 200 r.p.m. drives another shaft at 300 r.p.m. and transmits 6 kW through a belt. The belt is 100 mm wide and 10 mm thick. The distance between the shafts is 5m. The smaller pulley is 0.5 m in diameter. Take u = 0.2. Calculate the stress in the belt, if it is a) an open-belt drive b) a cross-belt drive.
Determine the required diameter of a steel transmission shaft 10 m in length and of yield...
Determine the required diameter of a steel transmission shaft 10 m in length and of yield strength 350 MPa in order to resist a torque of up to 500 N-m. The shaft is supported by frictionless bearings at its ends. Design the shaft with a factor of safety of 1.5 according to (a) the maximum shear stress theory and (b) the maximum distortion energy theory
A 20-mm-diameter steel shaft, made of AISI 1035 HR steel, transmits power while rotating at 400...
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.
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 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 used if the shearing stress is not to exceed 100 MPa. (3 points) (b) since in this simplified design calculation, the only stress considered is shear stress exerted on the shaft due to torques. Without taking into account of how power is...
Please indicate all solutions and equations. Thank you The shaft is made of A992 steel and...
Please indicate all solutions and equations. Thank
you
The shaft is made of A992 steel and has an allowable shear stress of TALLow = 75 MPa. when the shaft is rotating at 300 rpm, the motor supplies 8 kW of power, while gears A and B withdraw 5kW and 3kW, respectively. a. Determine the required minimum diameter of the shaft to the nearest millimeter. Also, find the 2. rotation of gear A relative to C. b. If the angle of...
QUESTION 9 A line shaft rotating at speed to transmit power through torque equal to 911...
QUESTION 9 A line shaft rotating at speed to transmit power through torque equal to 911 N.m. The shaft is made of mild steel with an allowable shear stress of 68 MPa. Neglecting the effect of bending moment on the shaft. Compute the diameter of the shaft (mm)? QUESTION 11 A gear carried by a shaft exerts a force on the shaft. The torque transmitted by the gear is equal to 377,890 N.mm. The Pitch diameter of the gear is...
Question 1 Time Allowed: 2 hours The figure shows a transmission shaft. The steel solid shaft...
Question 1 Time Allowed: 2 hours The figure shows a transmission shaft. The steel solid shaft is 200 mm long between self-aligning bearings at A and B. Belt forces (in the same horizontal direction) are applied to a 120-mm diameter sheave at C. The left end of the shaft is connected to an electric motor attached to a clutch by means of a flexible coupling. Nothing is attach to the right end (it is free). Assuming the shaft has a...
Fig. 14.17 A line shaft is to transmit 30 kW at 160 r.p.m. It is driven by a motor placed directly under it by means of a belt running on alm diameter pulley keyed to the end of the shaft. The tension in the tight side of the belt is 2.5 times that in the slack side and the centre of the pulley over-hangs 150 mm beyond the centre line of the end bearing. Determine the diameter of the shaft,...
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A shaft rotating at 200 r.p.m. drives another shaft at 300 r.p.m. and transmits 6 kW through a belt. The belt is 100 mm wide and 10 mm thick. The distance between the shafts is 5m. The smaller pulley is 0.5 m in diameter. Take u = 0.2. Calculate the stress in the belt, if it is a) an open-belt drive b) a cross-belt drive.
Determine the required diameter of a steel transmission shaft 10 m in length and of yield strength 350 MPa in order to resist a torque of up to 500 N-m. The shaft is supported by frictionless bearings at its ends. Design the shaft with a factor of safety of 1.5 according to (a) the maximum shear stress theory and (b) the maximum distortion energy theory
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 used if the shearing stress is not to exceed 100 MPa. (3 points) (b) since in this simplified design calculation, the only stress considered is shear stress exerted on the shaft due to torques. Without taking into account of how power is...
Please indicate all solutions and equations. Thank
you
The shaft is made of A992 steel and has an allowable shear stress of TALLow = 75 MPa. when the shaft is rotating at 300 rpm, the motor supplies 8 kW of power, while gears A and B withdraw 5kW and 3kW, respectively. a. Determine the required minimum diameter of the shaft to the nearest millimeter. Also, find the 2. rotation of gear A relative to C. b. If the angle of...
QUESTION 9 A line shaft rotating at speed to transmit power through torque equal to 911 N.m. The shaft is made of mild steel with an allowable shear stress of 68 MPa. Neglecting the effect of bending moment on the shaft. Compute the diameter of the shaft (mm)? QUESTION 11 A gear carried by a shaft exerts a force on the shaft. The torque transmitted by the gear is equal to 377,890 N.mm. The Pitch diameter of the gear is...
Question 1 Time Allowed: 2 hours The figure shows a transmission shaft. The steel solid shaft is 200 mm long between self-aligning bearings at A and B. Belt forces (in the same horizontal direction) are applied to a 120-mm diameter sheave at C. The left end of the shaft is connected to an electric motor attached to a clutch by means of a flexible coupling. Nothing is attach to the right end (it is free). Assuming the shaft has a...
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