Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 9, Problem 3P
9–1 to 9–4 The figure shows a horizontal steel bar of thickness h loaded in steady tension and welded to a vertical support. Find the load F that will cause an allowable shear stress, τallow, in the throats of the welds.
| Problem Number | b | d | h | τallow |
| 9–1 | 50 mm | 50 mm | 5 mm | 140 Mpa |
| 9–2 | 2 in | 2 in |
|
25 kspi |
| 9–3 | 50 mm | 30 mm | 5 mm | 140 Mpa |
| 9–4 | 4 in | 2 in |
|
25 kpsi |
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Question 1
You are working as an engineer in a bearing systems design company. The flow of
lubricant inside a hydrodynamic bearing (µ = 0.001 kg m¯¹ s¯¹) can be approximated
as a parallel, steady, two-dimensional, incompressible flow between two parallel plates.
The top plate, representing the moving part of the bearing, travels at a constant speed,
U, while the bottom plate remains stationary (Figure Q1). The plates are separated by
a distance of 2h = 1 cm and are W = 20 cm wide. Their length is L = 10 cm. By
applying the above approximations to the Navier-Stokes equations and assuming that
end effects can be neglected, the horizontal velocity profile can be shown to be
1 dP
u(y)
=
2μ dx
-y² + Ay + B
y= +h
Ꮖ
2h=1 cm
1
x1
y = −h
moving plate
stationary plate
2
X2
L = 10 cm
Figure Q1: Flow in a hydrodynamic bearing. The plates extend a width, W = 20 cm,
into the page.
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U
U
1 dP
A =…
Question 2
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Chapter 9 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 9 - 91 to 94 The figure shows a horizontal steel bar...Ch. 9 - 91 to 94 The figure shows a horizontal steel bar...Ch. 9 - 91 to 94 The figure shows a horizontal steel bar...Ch. 9 - 91 to 94 The figure shows a horizontal steel bar...Ch. 9 - 95 to 98 For the weldments of Probs. 91 to 94, the...Ch. 9 - 95 to 98 For the weldments of Probs. 91 to 94, the...Ch. 9 - 95 to 98 For the weldments of Probs. 91 to 94, the...Ch. 9 - 95 to 98 For the weldments of Probs. 91 to 94, the...Ch. 9 - 99 to 912 The materials for the members being...Ch. 9 - Prob. 10P
Ch. 9 - Prob. 11PCh. 9 - 99 to 912 The materials for the members being...Ch. 9 - 913 to 916 A steel bar of thickness h is welded to...Ch. 9 - 913 to 916 A steel bar of thickness h is welded to...Ch. 9 - 913 to 916 A steel bar of thickness h is welded to...Ch. 9 - Prob. 16PCh. 9 - Prob. 17PCh. 9 - 917 to 920 A steel bar of thickness h, to be used...Ch. 9 - 917 to 920 A steel bar of thickness h, to be used...Ch. 9 - 917 to 920 A steel bar of thickness h, to be used...Ch. 9 - Prob. 21PCh. 9 - 921 to 924 The figure shows a weldment just like...Ch. 9 - Prob. 23PCh. 9 - Prob. 24PCh. 9 - 9-25 to 9-28 The weldment shown in the figure is...Ch. 9 - 9-25 to 9-28 The weldment shown in the figure is...Ch. 9 - Prob. 27PCh. 9 - 925 to 928 The weldment shown in the figure is...Ch. 9 - The permissible shear stress for the weldment...Ch. 9 - Prob. 30PCh. 9 - 9-30 to 9-31 A steel bar of thickness h is...Ch. 9 - In the design of weldments in torsion it is...Ch. 9 - Prob. 33PCh. 9 - Prob. 34PCh. 9 - The attachment shown carries a static bending load...Ch. 9 - The attachment in Prob. 935 has not had its length...Ch. 9 - Prob. 37PCh. 9 - Prob. 39PCh. 9 - Prob. 40PCh. 9 - Prob. 42PCh. 9 - 9-43 to 9-45 A 2-in dia. steel bar is subjected to...Ch. 9 - 9-43 to 9-45 A 2-in dia. steel bar is subjected to...Ch. 9 - Prob. 45PCh. 9 - Prob. 46PCh. 9 - Find the maximum shear stress in the throat of the...Ch. 9 - The figure shows a welded steel bracket loaded by...Ch. 9 - Prob. 49PCh. 9 - Prob. 50PCh. 9 - Prob. 51PCh. 9 - Brackets, such as the one shown, are used in...Ch. 9 - For the sake of perspective it is always useful to...Ch. 9 - Hardware stores often sell plastic hooks that can...Ch. 9 - For a balanced double-lap joint cured at room...
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