1. A steel shaft is subjected to a fluctuating torque, T, as shown below. All surfaces are machined, reliability is 50%, and temperature is 200 F. Material properties are Su = 162 ksi and Sy = 138 ksi. 1.2 in. dia. 1.0 in. dia. Ꭲ 0.1 in R T プ 1 in. dia, hole 0.1 in R a) Find o em' σ for this loading condition. ea b) If the loading is such that 7000 lb-in. 3000 lb-in. 0 increases proportionally, find the safety factor for 10° cycles. σ em

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The rotating shaft in the given 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. Be sure to check for yielding. 25 D. ] -35 D. 3 R. Dimensions in millimeters 500 -175- -50 D. 25 D. 20 20 20 180 280 20 What is the factor of safety against fatigue at infinite life? (Round the final answer to three decimal places.) The value of the factor of safety is

Q.3 In a bushmandrel system, a bush was turned on a mandrel. The mandrel diameter in millimeter is 400.00 -0.05 and bore diameter of bush is 40+0.06 The -0.010 maximum eccentricity of the bush in mm will be A 0.025 0.045 C 0.055 D 0.065

Multi part question The rotating shaft shown is subjected to a constant force. Shaft material is AISI 1020 cold drawn steel. The shaft was turned on a lathe using standard carbide tooling. No heat treatment of the shaft was performed. Assume 99% reliability based on material property data. Shaft dimensions are shown in the illustration below. All dimensions in mm. External force is 3.927 kN. Calculate the highest alternating stress in the shaft, in MPa. -20 -35 D. 180- -500 3R. -280- -175- -50 D. 25 D.

A.1.4) Locational interference fits Basic hole system. Limits are in thousandths of an Limits for hole and shaft are applied algebraically to the basic size to obtain Nominal Size Range Inches To Class LN1 Standard Limits Shaft +0.45 +0.25 +0.5 Class LN2 Standard Limits Shaft +0.65 +04 +0.8 Class LN3 Standard Limits Shaft +0.75 +05 +0.9 Hole +0.25 Over Hole 0.4 Hole -0.12 *0.4 0.12 -0.24 +0.3 +0.5 +0.5 +0.3 +0.65 +0.4 +0.8 +0.5 +06 +1.2 0.8 0.24 -0.40 +0.4 +0.6 +1.0 +0.6 +0.4 +0.6 +1.1 0.40 - 0.71 +0.7 +0.7 +14 +0.4 +0.7 +1.3 +0.8 +1.6 +1.0 +10 +1.7 12 2.0 +1.4 +23 +1.6 +2.9 +20 +3.5 +25 0.71 1.19 +0.5 +1.0 +0.8 +0.8 +0.5 1,19 - 1,97 +0.6 +1.1 +1.0 +1.0 +0.6 +1.3 +0.8 +1.6 +1.0 +1.9 +1.2 +22 - 3.15 +1.2 +2.1 +1.2 1.97 +0.7 +14 +1.4 +2.5 +1.6 3.15 -4.73 +0.9 +1.4 +1.6 +2.8 +1.8 +3.2 +2.0 +3.4 +22 +3.9 25 +44 +2.8 - 7.09 +1.0 +1.6 4.73 +1.8 +42 +1.8 +30 +47 7.09 -9.85 +1.2 +1.4 +2.3 +2.0 +2.0 +3.5 +5.9 +45 *6.6 +5.0 +1.2 9.85 - 12.41 +1.4 22 +22 +2.6 +1.6 +2.8 +1.4 12.41 - 15.75 25 +2.5…

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What force is necessary to punch a 30 mm hole in 12.5 mm thick plate if ultimate shear stress is 410 Mpa? A. 480 KN B. 481 KN C. 482 KN D. 483 KN Please solve the Problem elaborately and Refer Machine Elements and Stresses Equations from the figures or use other shortcut Methods you have or you may Solve both or in more different methods the better ?. Your solution will be use as reference for my Future Board Exam preparation/review/study. Thank you so much dear your work will be appreciated much and rated excellently.

A 2.5 inches shaft is subjected to 3 KN.m torque. Find the stress developed. A. 48.62 MPaB. 52.75 MPa C. 59.67 MPa D. 38.64 Mpa Please solve the Problem elaborately and Refer Machine Elements and Stresses Equations from the figures or use other shortcut Methods you have or you may Solve both or in more different methods the better ?. Your solution will be use as reference for my Future Board Exam preparation/review/study. Thank you so much dear your work will be appreciated much and rated excellently.

7) The washing machine with a mass of 19 kg and a rotational imbalance of 0.45 N kg.m is placed on an insulator with a hardness of 41 * 105 and a depreciation m ratio of 0.08. A) Under what operating speed range is the transmission force to the base less than 3000N? B) Get the range of motion of the washing machine for the minimum and maximum speed obtained in section A.