SHIGLEY'S MECH.ENGIN....(LOOSE)>CUSTOM<
10th Edition
ISBN: 9781260163155
Author: BUDYNAS
Publisher: MCG CUSTOM
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Chapter 7, Problem 3P
The rotating solid steel shaft is simply supported by bearings at points B and C and is driven by a gear (not shown) which meshes with the spur gear at D. which has a 150-mm pitch diameter. The force F from the drive gear acts at a pressure angle of 20°. The shaft transmits a torque to point A of TA = 340 N · m. The shaft is machined from steel with Sy = 420 MPa and Sut = 560 MPa. Using a factor of safety of 2.5, determine the minimum allowable diameter of the 250-mm section of the shaft based on (a) a static yield analysis using the distortion energy theory and (b) a fatigue-failure analysis. Assume sharp fillet radii at the bearing shoulders for estimating stress-concentration factors.
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The two solid steel shafts shown in the figure are connected by gears. Determine the angle of twist of end A of shaft AB when the torque T = 25 N - m is applied. The DC axis is fixed at D. Each axis has a diameter of 20 mm. G = 70GPa.
Torsion A hollow circular shaft has inside and outside diameters of 30 mm and 40 mm respectively. The material has-a shear modulus of 60 kN/mm'. Determine the maximum stress in the shaft when it is subjected to a twist of 5 in a length of 2.5 m. What is the maximum torque the shaft can carry? For a circle / = nd*/32.
Problem 1:
A circular shaft with a diameter of 100 mm and a length of 2 meters is subjected to a torsional moment of 500 Nm. The shaft is made of a material with a shear modulus of 80 GPa. Determine the maximum shear stress and the angle of twist along the length of the shaft.
Problem 2:
A solid circular shaft of length 3 meters is made of a material with a shear modulus of 60 GPa. The shaft has a diameter of 80 mm and is subjected to a torque of 600 Nm. Due to manufacturing constraints, the maximum allowable shear stress for the material is 60 MPa. Determine if the shaft design is safe and, if not, suggest an alternative design to meet the given constraints.
Chapter 7 Solutions
SHIGLEY'S MECH.ENGIN....(LOOSE)>CUSTOM<
Ch. 7 - A shaft is loaded in bending and torsion such that...Ch. 7 - The section of shaft shown in the figure is to be...Ch. 7 - The rotating solid steel shaft is simply supported...Ch. 7 - A geared industrial roll shown in the figure is...Ch. 7 - Design a shaft for the situation of the industrial...Ch. 7 - The figure shows a proposed design for the...Ch. 7 - For the problem specified in the table, build upon...Ch. 7 - Prob. 8PCh. 7 - For the problem specified in the table, build upon...Ch. 7 - For the problem specified in the table, build upon...
Ch. 7 - In the figure is a proposed shaft design to be...Ch. 7 - The shaft shown in the figure is proposed for the...Ch. 7 - Prob. 20PCh. 7 - The shaft shown in the figure is proposed for the...Ch. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - A 25-mm-diameter uniform steel shaft is 600 mm...Ch. 7 - Prob. 29PCh. 7 - Compare Eq. (727) for the angular frequency of a...Ch. 7 - Prob. 31PCh. 7 - The steel shaft shown in the figure carries a...Ch. 7 - A transverse drilled and reamed hole can be used...Ch. 7 - Prob. 34PCh. 7 - The shaft shown in Prob. 721 is proposed for the...Ch. 7 - A guide pin is required to align the assembly of a...Ch. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Prob. 39PCh. 7 - A ball bearing has been selected with the bore...Ch. 7 - Prob. 41PCh. 7 - A gear and shaft with nominal diameter of 35 mm...
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