The surface factor is used to correct for difference in surface finish. Calculate the surface factor...
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surface factor is used to correct for difference in surface finish.
Calculate the surface factor...
A ground steel shaft with a shoulder fillet has dimensions: D= 30 mm, d=25 mm and...
A ground steel shaft with a shoulder fillet has dimensions: D= 30 mm, d=25 mm and r= 2 mm. It is subjected to a combined nominal loading of 40 to 190 MPa bending stress and torsional stress of 20 to 70 MPa, which are in phase. Find the safety factor for infinite life if ultimate tensile strength is 965 MPa, state all assumptions.
A stepped shaft with a ground finish is made of steel with an ultimate tensile strength of 1200 MPa. The shaft is l...
A stepped shaft with a ground finish is made of steel with an ultimate tensile strength of 1200 MPa. The shaft is loaded with a fully reversed torque of 20 Nm. Dimensions of the shaft are given below. (5) a) Given the stress concentration for fatigue loading, Kfs 1.3, find the location and magnitude of the maximum stress in the shaft. (14) b) Find the endurance limit, assuming room temperature and a reliability of 99%. (1) c)Will the part have...
A shaft is to be manufactured from a steel having an ultimate tensile strength of 420...
A shaft is to be manufactured from a steel having an ultimate tensile strength of 420 MPa, and a yield stress of 305 MPa. The shaft has a solid circular cross section of diameter 50 mm and is subjected to a sinusoidally varying torque ranging from 60 Nm to 130 Nm. It has also been established that the shaft has a fully-corrected endurance limit of 129 MPa and that a torsional fatigue stress concentration factor, kf = 2.1, exists at...
6. For the bearing with the largest radial load and without knowing the shaft diameter, what...
6. For the bearing with the largest radial load and without
knowing the shaft diameter, what would be the catalog rating for a
radially loaded ball bearing to withstand 1000 x 10e6 cycles with
90% reliability. The bearing manufacturer rates its bearing for a
million cycles.
7. A 10 mm diameter steel shaft is subject to bending stresses
only. The material has Sut = 1100 MPa and Sy = 950 MPa and a
fine-ground surface finish.
1. Determine the factor...
Question 2: [20 Points) The Figure below shows a portion of a pump that is gear...
Question 2: [20 Points) The Figure below shows a portion of a pump that is gear driven at uniform load and speed. The shaft is supported by bearings mounted in the pump housing. The shaft is made of steel, its yield strength is 800 MPa and its ultimate tensile strength is 1000 MPa. The surface of the shaft is machined. Due to the fillet at A, the fatigue bending stress concentration factor is 2.0, the fatigue torsion stress concentration factor...
7-2 The section of shaft shown in the figure is to be designed to approximate relative sizes of d...
7-2 The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.75D andD/20 with diameter d conforming to that of standard rolling-bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a completely...
The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.7...
The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.75D and r- D/20 with diameter d conforming to that of standard rolling-bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a...
Sec. A Sec. B Question 2. A 40 mm diameter shaft is made from carbon steel...
Sec. A Sec. B Question 2. A 40 mm diameter shaft is made from carbon steel having ultimate tensile strength of 800 Mpa. It is subjected to a torque which fluctuates between 1500 Nm to - 1000 Nm. Calculate the factor of safety (we cannot tolerate any plastic deformation, make suitable assumptions when necessary).
pls solve with all the steps and correct solutions only! will rate! thanks The shaft shown...
pls
solve with all the steps and correct solutions only! will rate!
thanks
The shaft shown in the figure is supported on bearings located at A and D. The shaft is made from AISI 1050 steel with a yield strength of 580 MPa and an ultimate strength of 690 MPa. The shaft dimensions are in millimeters and each step has the diameter shown. There are fillets with 2 mm radii at each step in the diameter. The shaft has a...
A rotating shaft is made of 42 mm by 4 mm thick cold-drawn round steel tubing and has a 6 mm diam...
A rotating shaft is made of 42 mm by 4 mm thick cold-drawn round steel tubing and has a 6 mm diameter hole drilled transversely through it. The shaft is subjected to a pulsating torque fluc- tuating from 20 to 160 Nm and a completely reversed bending moment of 200 Nm. The steel tubing has a minimum strength of Sut 410 MPa (60 ksi). The static stress-concentration factor for the hole is 2.4 for bending and 1.9 for torsion. The...
A ground steel shaft with a shoulder fillet has dimensions: D= 30 mm, d=25 mm and r= 2 mm. It is subjected to a combined nominal loading of 40 to 190 MPa bending stress and torsional stress of 20 to 70 MPa, which are in phase. Find the safety factor for infinite life if ultimate tensile strength is 965 MPa, state all assumptions.
A stepped shaft with a ground finish is made of steel with an ultimate tensile strength of 1200 MPa. The shaft is loaded with a fully reversed torque of 20 Nm. Dimensions of the shaft are given below. (5) a) Given the stress concentration for fatigue loading, Kfs 1.3, find the location and magnitude of the maximum stress in the shaft. (14) b) Find the endurance limit, assuming room temperature and a reliability of 99%. (1) c)Will the part have...
6. For the bearing with the largest radial load and without
knowing the shaft diameter, what would be the catalog rating for a
radially loaded ball bearing to withstand 1000 x 10e6 cycles with
90% reliability. The bearing manufacturer rates its bearing for a
million cycles.
7. A 10 mm diameter steel shaft is subject to bending stresses
only. The material has Sut = 1100 MPa and Sy = 950 MPa and a
fine-ground surface finish.
1. Determine the factor...
Question 2: [20 Points) The Figure below shows a portion of a pump that is gear driven at uniform load and speed. The shaft is supported by bearings mounted in the pump housing. The shaft is made of steel, its yield strength is 800 MPa and its ultimate tensile strength is 1000 MPa. The surface of the shaft is machined. Due to the fillet at A, the fatigue bending stress concentration factor is 2.0, the fatigue torsion stress concentration factor...
7-2 The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.75D andD/20 with diameter d conforming to that of standard rolling-bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a completely...
The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.75D and r- D/20 with diameter d conforming to that of standard rolling-bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a...
Sec. A Sec. B Question 2. A 40 mm diameter shaft is made from carbon steel having ultimate tensile strength of 800 Mpa. It is subjected to a torque which fluctuates between 1500 Nm to - 1000 Nm. Calculate the factor of safety (we cannot tolerate any plastic deformation, make suitable assumptions when necessary).
pls
solve with all the steps and correct solutions only! will rate!
thanks
The shaft shown in the figure is supported on bearings located at A and D. The shaft is made from AISI 1050 steel with a yield strength of 580 MPa and an ultimate strength of 690 MPa. The shaft dimensions are in millimeters and each step has the diameter shown. There are fillets with 2 mm radii at each step in the diameter. The shaft has a...
A rotating shaft is made of 42 mm by 4 mm thick cold-drawn round steel tubing and has a 6 mm diameter hole drilled transversely through it. The shaft is subjected to a pulsating torque fluc- tuating from 20 to 160 Nm and a completely reversed bending moment of 200 Nm. The steel tubing has a minimum strength of Sut 410 MPa (60 ksi). The static stress-concentration factor for the hole is 2.4 for bending and 1.9 for torsion. The...
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