Problem 2: Let FA=100 N and Fc= 208.33 N for the shaft below. The bearings D and B act as pin supports. The shaft is made of 2014 aluminum alloy with a yield strength of 276 MPa. The shaft has a diameter of 8 mm. Based on the maximum shear stress (MSS) theory, determine if the shaft is safe. Determine the corresponding safety factor.

Problem 2: Let FA=100 N and Fc= 208.33 N for the shaft below. The bearings D and B act as pin supports. The shaft is made of 2014 aluminum alloy with a yield strength of 276 MPa. The shaft has a diameter of 8 mm. Based on the maximum shear stress (MSS) theory, determine if the shaft is safe. Determine the corresponding safety factor.

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

See similar textbooks

Similar questions

An 02-seris single-row deep-groove ball bearing with a 90 mm bore (C0 = 62 kN, C10 = 95.6 kN) is loaded with a 4.34 kN axial load and a 10 kN radial load. The inner ring rotates at 600 rpm (v=1). What is the FaC0? Should X1/Y1 or X2/Y2 be used to caculate the equivalent radial load? Determine the equivalent radial load experienced by this bearing. What is the bearing’s in-use reliability, assuming a design life of 2*10^8 revolutions and an application factor of 1.2?
Mechanical design The maximum load in a rotating shaft is subjected to bending moment of 1 kN.m and a torque of 1 kN.m. The member is made of steel the Ultimate Tensile Strength 440 MPa, Yield Tensile Strength 370 MPa. With a safety factor of 4, kt = km = 1.5 and keyway stress consternation is presented. According to the maximum shear stress theory, the shaft diameter will be: a. 160 mm b. 74 mm C. 145 mm d. 92.5 mm e. 60 mm f. 66 mm
A rotating shaft of 40×4 mm AISI 1018 cold-drawn steel tubing has a 6 mm diameter hole drilled transversely through it. Estimate the factor of safety guarding against fatigue and static failures using the Gerber and Langer failure criteria for the following loading conditions: a. The shaft is subjected to a completely reversed torque of 120 N.m in phase with a completely reversed bending moment of 150 N.m. b. The shaft is subjected to a pulsating torque fluctuating from 20 to 160 N.m and as steady bending moment of 150 N.m.
QUESTION 7 Figure 7 shows an assembly consist of circular shaft AB, solid circular BC and a circular CE. The shaft is made of titanium alloy steel and fixed at A. Segment AB is a hollow shaft, has an inner diameter of 25mm. While tube CE with the thickness 2mm has an outer diameter of 20mm. The assembly is subjected to torques of 1000 Nm at C, 210 m at D and 350 Nm at E. The alloy has modulus of rigidity, G = 44kN/mm^2 a) Draw the torque diagram of the shaft. b) Determine maximum shearing stress developed in each segment. c) Calculate the angle of twist at the right end of the shaft.
A motor is to transmit 150 kW to a piece of mechanical equipment. The power is transmitted through a solid structural steel shaft. Failure is by yielding, and the factor of safety is 1.25. The designer has the freedom to operate the motor at 60 rpm or 6000 rpm. For each case, determine the minimum shaft diameter. Shafts are available with diameters in increments of 5 mm. If weight is important, which speed would be used?
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. [
A semi-elliptic spring used for automobile suspension, consists of two extra full-length leaves and eight graduated-length leaves, including the master leaf. The centre-to centre distance between the two eyes is 1 m. The leaves are made of steel 55Si2Mo90 (Syt = 1500 N/mm2and E = 207000 N/mm2) and the factor of safety is 2. The maximum spring load is 30 kN. The leaves are pre- stressed so as to equalize stresses in all leaves under maximum load. Determine the dimensions of the cross-section of the leaves and the deflection at the end of the spring.
Please solve step by step both sub parts. shaft transmits 75 kW power at 300 r.p.m. The distance between the two bearing is 3000 mm. It is subjected to torsion only. Calculate the diameter of the shaft, (1)For steady loading and (ii) For suddenly applied load with minor shocks. Take the allowable shear stress for the shaft material as 35 N/mm².
The rotating shaft running at n = 900 rpm, shown in the figure below, is machined from AISI 1045 CD steel. It is subjected to a force of F = 10.1 kN. The shaft is experiencing an operating temperature of 35 oC. With the specified loading and for the reliability of 99.9 %, Determine the minimum factor of safety for fatigue based on infinite life*. Determine the maximum safe load (Fmax) that can be applied for a factor of safety of 1.5 and a design life of 5x105 cycles, all other input values remaining the same. Determine the factor of safety against yielding.
(14) A 40mm steel shaft rotates @ 600rpm & handles 10kW delivered from a pulley located 300mm from one side of the bearing. The shaft is supported by bearing 800mm apart. Assume that force acting on the shaft is the equal to the maximum belt pull. Determine the maximum combined stress of the shaft. (15) A 150mm pulley is mounted to the motor 100mm from the bearing. The motor is 20kW & rotates @ 640rpm. The belt wraps the pulley @ 170°. The net belt tension is acting as transverse load on the shaft. Determine the combine stress on the shaft.
The horsepower required to drive 40 mm power screw having a pitch of 8 mm, is 3 hp. The screw is single threaded and is made of cold-rolled steel with Sut=550 MPa and Sy=380 MPa and the nut is made of ASTM NO.20 cast iron. The nut height is 50 mm. A factor of safety for possible failures in the threads is 3. If the screw is rotating at a speed of 50 rpm, determine; a) the maximum force that can be applied by the nut b) the efficiency of screw-nut c) the coefficient of friction between the nut and the screw.
(7) The drive of an outboard motor which rotates @ 5,000rpm is supported by a spline in the crankshaft @ the upper end & bearing @ the lower end 560mm apart. (a) If the engine develops 15kW @ this speed, what is the diameter of the solid steel shaft to use? The allowable torsional stress is 80N/mm2 .