HW#5

please written solution by hand

Problem 3.2, don’t do any other question, just problem 3.2

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.

O Week5_Torsion1 21-22-1.pdf s/callu/Downloads/Week5_Torsion1_21-22-1.pdf -18 mm PROBLEM 3.1 Determine the torque T which causes a maximum shear stress of 70 MPa in the steel cylindrical shaft shown. [Ans. 641 Nm] T

TOPIC: Machine Design Multiple choice Note: Please also provide a solution that proves the correct answer.

Complete solution, please. Thanks!

6. A punch punches a 1-in. diameter hole in a steel plate % inch thick every 10 sec. The actual punching takes 1 sec. The ultimate shear strength of the plate is 60,000 psi. The flywheel of the punch press has a mass moment of inertia of 500 in-lb sec2and rotates at a mean speed of 150 rpm. What is the total speed fluctuation of the flywheel in rpm?

Please include a detailed answer with questions and what the variables mean. Along with the sketch's. Thanks

3. A motor is connected by a belt to pulley B. T, is the tight-side tensile force equal to 1800 N. The shaft spins at a constant speed, 650 rpm. The power delivered by the motor is 12.6 kW. On pulley A, connected to the load, the slack side of the belt has a tension equal to th of the tight side. b T T, B d shaft Dimensions are as follows: da 200 тm 300 тт | 250 тm |180 тm | 250 тm 26 тm dB dahaft a We analyzed a problem similar to this on Test 01 using static failure theories. Is this strictly correct? Because the shaft is spinning, would not a material particle see a time-varying reversal of the the bending stress as in the R.R. rotating beam test? Would a particle see a reversal of the torsional shear stress? Assume Sut = 370 MPa and Sy = 300 MPa. Ignore Marin factors. Ignore stress concentrations. Ignore direct shear stress (that due to V). Find the safety factors with respect to fatigue and yielding. Be guided by section 6-14 on combined loading.

Write legibly, provide manual step by step solution, and diagram for below given problem. A 2.5 in diameter 10 spline shaft ( d= 0.86D, w= 0.156D, h= 0.07D ) to slide when not under load has a compressive force of 2500 lb. Find the torque applied if hub length is 1 1/2 in.  Ans. 2906.25 in-lb

8. Find the diameter of a shaft made of 37 Mn 2 steel having the ultimate tensile strength as 600 MPa and yield stress as 440 MPa. The shaft is subjected to completely reversed axial load of 200 kN. Neglect stress concentration factor and assume surface finish factor as 0.8. The factor of safety may be taken as 1.5. [Ans. 51.7 mm]

i need clear ans and solve very very fast in 20 min and thank you | ᴅʏʙᴀʟᴀ ?✨؛i need clear ans and solve very very fast in 20 min and thank you | ᴅʏʙᴀʟᴀ ?✨؛

i need clear ans and solve very very fast in 20 min and thank you | ᴅʏʙᴀʟᴀ ?✨؛

MECH.ENG. DESIGN 1 PART 2