The shaft shown in the figure is machined from AISI 1040 CD steel. The shaft rotates at 1600 rpm and is supported in rolling bearings at A and B. The applied forces are F₁ = 1000 lbf and F2 = 1500 lbf. Determine the minimum fatigue factor of safety based on achieving infinite life. If infinite life is not predicted, estimate the number of cycles to failure. Also check for yielding. it"] A -8 in in -10 in- F₁ -8 in- in F₂ -10 in- All fillets in R. -8 in 12 in 1 3 in B in

The shaft shown in the figure is machined from AISI 1040 CD steel. The shaft rotates at 1600 rpm and is supported in rolling bearings at A and B. The applied forces are F₁ = 1000 lbf and F2 = 1500 lbf. Determine the minimum fatigue factor of safety based on achieving infinite life. If infinite life is not predicted, estimate the number of cycles to failure. Also check for yielding. it"] A -8 in in -10 in- F₁ -8 in- in F₂ -10 in- All fillets in R. -8 in 12 in 1 3 in B in

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Requlred Informatlon The shaft shown in the figure is machined from AISI 1040 CD steel. The shaft rotates at 1600 rpm and is supported in rolling bearings at A and B. The appled forces are F = 900 Ibf and F2 = 1350 Ibf. Determine the minimum fatigue factor of safety based on achieving infinite life. If infinite life is not predicted, estimate the number of cycles to fallure. Also check for ylelding. -8 in- -8 in- 8 in F2 17 in in 3 in -10 in- -10 in- in 글 in All fillets in R. B What are the values of the theoretical stress-concentration factor, the notch sensitivity, and the fatigue stress-concentration factor? The value of the theoretical stress concentration-factor Is The value of the notch sensitivity is The value of the fatigue stress concentration-factor Is
The figure shows a shaft mounted in bearings at A and D and having pulleys at B and C. The forces shown acting on the pulley surfaces represent the belt tensions. The shaft is to be made of AISI 1035 CD steel. The shaft is rotating at speed of 1000 rpm. Find the minimum factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding. Take shaft diameter to be 1.5 inches.
The rotating shaft shown in the figure is machined from AISI 1020 CD steel. It is subjected to a force of F = 6 kN. Find the minimum factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding. The diameter of the bar is 35 mm and the radius of the step down in the shaft is 3 mm. All dimensions listed below are in mm. 25 D. 20 - 20 -35 D. 180 -3 R. 500- F 280- -175- -50 D. -25 D. -20 20
The rotating shaft shown in the figure is machined from AISI 1040 CD steel (sy = 490 MPa, Sut = 590 MPa). It is subjected to a transverse force of F = 8 kN between the supports. The system designed to be operated at a temperature of 120°C with a reliability of 99%. Estimate the number of cycles to failure. All dimensions are in mm. Assume all fillets are 3mm in radius. 25 D. 20 20 -35 D. 180- 3 R. 500 F 280 -175- -50 D. 25 D. | ª -20 20
a) The rotating step shaft is subjected to the force as shown in the figure. It is supported by bearings at A and F. The shaft is machined using AISI 1040 CD steel. Determine the minimum fatigue factor of safety based on achieving infinite life. If infinite life is not predicted, estimate the number of cycles failure. Also check for yielding. Given Data: (Notch sensitivity (q)=0.8, Sut=85 kpsi, Syield= 71 kpsi, Surface condition modification factor ka=0.879, Size modification factor kb=0.790, Load modification factor kc=1, fatigue fraction (f)=0.867) * In order to determine Kt; Use Figure A-15-9 in your textbook. Dimensions are in inch and all fillet radius:1/14 inch y 860 lbf de 1.75 1.5 1.0 1.0 B V A| D E F 0.5 8 -8.5- R1 R2 -19.5 20
Figure below shows a rotating shaft simply supported in ball bearings at A and D and loaded by a nonrotating orce Fof 6.8 kN. Using ASTM "minimum" strengths, estimate the life of the part. 6T td7 (a) Shaft drawing showing all dimensions in millimeters; all fillets 3-mm radius. The shaft rotates and the load is stationary; material is machined from AISI 1050 cold-drawn steel. (b) Bending moment diagram.
Figure below shows a portion of a pump that is gear-driven at uniform load and speed. The 25 mm diameter solod shaft supported by the bearings is to be made of machined AISI 1045 CD steel. The helical gear is subjected to the axial force F =499 y a radial load F = 741 N and a tangential load of F=2,006 N. Assume the component is operating at room temperature of 70°F and the material has 50% reliability factor. 25-mm solid Bending K, = 2.0 round shaft Fillet Torsional K = 1.5 F. F, Axial K, = 1.8 F Pump Helical spur gear 50 mm -250-mm dia.- FIGURE 1. Identify the critical location(s) of stress and show it clearly in a diagram. 2. Identify cleary, all the components of stresses (at the critical point) that will be calculated (by drawing and clearly showing the XYZ axes) and show it in a matrix form. Show which components of stresses will have a value zero or non-zero. 3. Calculate the principal stresses and principal directions. Show the principal stresses clearly in a stress element…
Use the general shaft layout given and determine critical diameters of the shaft based on infinite fatigue life with a design factor of 1.5. Check for yielding. Check the slopes at the bearings for satisfaction of the recommended limits in Table 7-2. Assume that the deflections for the pulleys are not likely to be critical. 500 lbf 75 lbf 8-in dia. Bearing at O 500 lb d 10.0" 75 lb Material 1040 Q and T 18 in Use the following shaft layout assuming a pulley transmits torque through a key and keyseat at location A to another pulley at location B. Assume the tensions in the belt at pulley B are T₁ and T2, where T₁ is 15% of T2. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. 10-in dia. 12 in T₂ T₁ The mean torque is 0 lb-in. The alternating torque is 2125 lb-in. The mean moment is 0 lb-in. The alternating moment is 5000 lb-in. 18.0" pulley diameter = 8.0" Sut 113 kpsi 10.0 B T2 T1 pulley diameter = 10.0" Sy 86 kpsi 12.0"…
5. A non-rotating shaft made of AISI 1018 CD steel is machined to the shape shown below. A load Fy = -250 lbf (pointing down) and F, = F, = 0 lbf is repeatedly applied and removed. Determine the factor of safety for fatigue based on Goodman criterion. If the life is not infinite, estimate the number of cycles to failure (f = 0.9 for S-N curve). 2 in 9 in 1-in dia. B -in R. 2 in 1-in dia. 1글-in dia. -in din. 12 in
Use the general shaft layout given and determine critical diameters of the shaft based on infinite fatigue life with a design factor of 1.5. Check for yielding. Check the slopes at the bearings for satisfaction of the recommended limits in Table 7-2. Assume that the deflections for the pulleys are not likely to be critical. 10 in 500 lbf 75 lbf 8-in dia. Bearing at O 10.0" 500 lb d 75 lb Material 1040 Q and T 18 in Use the following shaft layout assuming a pulley transmits torque through a key and keyseat at location A to another pulley at location B. Assume the tensions in the belt at pulley Bare T₁ and T2, where T₁ is 15% of T2. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. 10-in dia. 12 in T₂ 8.0⁰ T₁ 18.0" 10.0" I B pulley diameter = 8.0" Sut 113 kpsi T2 T1 pulley diameter = 10.0" Sy 86 kpsi 12.0" Bearing at C Using the DE-Goodman criteria and a design factor of 1.5, calculate the diameter based on the shaft's loadings…
A 1-in-diameter solid round bar has a groove 0.1-in deep with a 0.1-in radius machined into it. The bar is made of AISI 1020 CD steel and is subjected to a purely reversing torque of 1800 lb-in. For the S-N diagram of this material, let f=0.9. Estimate the number of cycles to failure. If the bar is also placed in an environment with a temperature of 750 F, estimate the number of cycles to failure
2. The rotating shaft shown in the figure is machined from AISI 1020 CD steel. It is subjected to a force of F = 6 kN. Find the minimum factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding. ent Design 25 D. 20 +20 35 D. -180- Mechanical Engineering 12200 10sm 3RD Class -3 R. -500 F -280 -175- -50 D. 25 D. 20 20