Engineering Mechanics: Statics & Dynamics (14th Edition)
14th Edition
ISBN: 9780133915426
Author: Russell C. Hibbeler
Publisher: PEARSON
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Chapter 7.2, Problem 52P
Draw the shear and moment diagrams for the beam.
Prob. 7–52
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Q.5: (10 Marks) Select the correct answer (choose 10 only)
1. The forward whirling speed is ......... the static structure tilting speed.
(a) Less than
(b) Higher than
(c) equal to
2. The divergence between the forward and backward whirling speeds increases as:
(a) The rotating speed increase (b) the polar moment of inertia increases
(c) Both (a) and (b)
(d) do not change
3. Increasing the system natural frequency can be done by:
(a) add masses (b) adding braces and supports (c) increase damping
4. The amplitude of vibration due to external force can be reduced by:
(a) Increasing damping (b) Decreasing damping (c) Increasing mass
5. Tuned absorbers are used to:
(a) Shift the natural frequency (b) increase damping (c) Increase stiffness
6. Accelerometers sensors contains:
г
(a) Piezoelectric materials (b) Magnet and coil (c) coil only
7. Increasing the stiffness of the system causes:
(a) Less transmitted force (b) more transmitted force (c) Transmitted force does not
change
8. The…
Q.1: (15 Marks)
Find the first three natural frequencies and mode shapes of the axial and torsional
vibration for a steel shaft free at both ends, having a length of 3 m. Find the subsequent
axil motion if the shaft is subjected to the following initial conditions, given that E = 210
GPa, G=80 GPa, p = 7800 kg/m³:
f(x)=0
v(x) = {1
2.8
Q.4: (15 Marks)
A uniform rotor of mass 500 kg and diametral moment of inertia of 20 kg.m², is supported
by identical short bearings of stiffness 1 MN/m in the horizontal and vertical directions. If
the distance between the bearings is 0.6 m:
(a) What is the corresponding polar moment of inertia if the backward whirling speed is
80% of the static structure tilting natural frequency?
(b) Determine the forward whirling speed.
45.27
Chapter 7 Solutions
Engineering Mechanics: Statics & Dynamics (14th Edition)
Ch. 7.1 - In each case, calculate the reaction at A and then...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the shear force and moment at points C...Ch. 7.1 - Determine the internal normal force and shear...Ch. 7.1 - Two beams are attached to the column such that...
Ch. 7.1 - The beam weighs 280 lb/ft. Determine the internal...Ch. 7.1 - The pliers are used to grip the tube at B. If a...Ch. 7.1 - Determine the distance a as a fraction of the...Ch. 7.1 - Determine the internal shear force and moment...Ch. 7.1 - Determine the internal shear force and moment...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - The cable will fail when subjected to a tension of...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the distance a between the bearings in...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - The shaft is supported by a journal bearing at A...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - The cantilevered rack is used to support each end...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Rod AB is fixed to a smooth collar D, which slides...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the ratio of a/b for which the shear...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the normal force, shear force, and...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - The strongback or lifting beam is used for...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - Determine the internal normal force, shear force,...Ch. 7.1 - The distributed loading W = W0 sin , measured per...Ch. 7.1 - Solve Prob. 7-39 for = 120. Probs. 739/40Ch. 7.1 - Determine the x, y. z components of force and...Ch. 7.1 - Determine the x, y, z components of force and...Ch. 7.1 - Determine the x, y, z components of internal...Ch. 7.1 - Determine the x, y. z components of internal...Ch. 7.2 - Determine the shear and moment as a function of x,...Ch. 7.2 - Determine the shear and moment as a function of x,...Ch. 7.2 - Determine the shear and moment as a function of x,...Ch. 7.2 - Determine the shear and moment as a function of x,...Ch. 7.2 - Determine the shear and moment as a function of x,...Ch. 7.2 - Determine the shear and moment as a function of x,...Ch. 7.2 - Draw the shear and moment diagrams for the shaft...Ch. 7.2 - Draw the shear and moment diagrams for the beam...Ch. 7.2 - Draw the shear and moment diagrams for the beam...Ch. 7.2 - Draw the shear and moment diagrams for the...Ch. 7.2 - Draw the shear and moment diagrams of the beam (a)...Ch. 7.2 - If L = 9 m, the beam will fail when the maximum...Ch. 7.2 - Draw the shear and moment diagrams for the beam....Ch. 7.2 - Draw the shear and moment diagrams for the beam....Ch. 7.2 - Draw the shear and bending-moment diagrams for the...Ch. 7.2 - The shaft is supported by a smooth thrust bearing...Ch. 7.2 - Draw the shear and moment diagrams for the beam....Ch. 7.2 - Draw the shear and moment diagrams for the beam....Ch. 7.2 - Draw the shear and moment diagrams for the...Ch. 7.2 - Draw the shear and bending-moment diagrams for...Ch. 7.2 - Draw the shear and moment diagrams for the beam....Ch. 7.2 - The shaft is supported by a smooth thrust bearing...Ch. 7.2 - Draw the shear and moment diagrams for the beam....Ch. 7.2 - The beam will fail when the maximum internal...Ch. 7.2 - Prob. 63PCh. 7.2 - Prob. 64PCh. 7.2 - Prob. 65PCh. 7.2 - Draw the shear and moment diagrams for the beam....Ch. 7.2 - Determine the internal normal force, shear force,...Ch. 7.2 - The quarter circular rod lies in the horizontal...Ch. 7.2 - Express the internal shear and moment components...Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the...Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the shaft....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - The beam consists of three segments pin connected...Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.3 - Draw the shear and moment diagrams for the beam....Ch. 7.4 - The cable supports the three loads shown....Ch. 7.4 - Prob. 95PCh. 7.4 - Determine the tension in each segment of the cable...Ch. 7.4 - Prob. 97PCh. 7.4 - The cable supports the loading shown. Determine...Ch. 7.4 - The cable supports the three loads shown....Ch. 7.4 - The cable supports the three loads shown....Ch. 7.4 - Determine the force P needed to hold the cable in...Ch. 7.4 - Determine the maximum uniform loading w, measured...Ch. 7.4 - The cable is subjected to a uniform loading of w =...Ch. 7.4 - The cable AB is subjected to a uniform loading of...Ch. 7.4 - If x = 2 ft and the crate weighs 300 lb, which...Ch. 7.4 - If yB = 1.5 ft. determine the largest weight of...Ch. 7.4 - The cable supports a girder which weighs 850...Ch. 7.4 - The cable is subjected to a uniform loading of w =...Ch. 7.4 - If the pipe has a mass per unit length of 1500...Ch. 7.4 - Prob. 110PCh. 7.4 - Prob. 111PCh. 7.4 - The cable will break when the maximum tension...Ch. 7.4 - Prob. 113PCh. 7.4 - The power transmission cable weighs 10 lb/fl. If...Ch. 7.4 - Prob. 115PCh. 7.4 - Prob. 116PCh. 7.4 - Prob. 117PCh. 7.4 - Prob. 118PCh. 7.4 - Show that the deflection curve of the cable...Ch. 7.4 - Prob. 120PCh. 7.4 - Prob. 121PCh. 7.4 - Prob. 122PCh. 7.4 - A cable has a weight of 5 lb/ft. If it can span...Ch. 7.4 - The 10 kg/m cable is suspended between the...Ch. 7.4 - Determine the internal normal force, shear force,...Ch. 7.4 - Prob. 2RPCh. 7.4 - Prob. 3RPCh. 7.4 - Prob. 4RPCh. 7.4 - Draw the shear and moment diagrams for the beam....Ch. 7.4 - A chain is suspended between points at the same...
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Bending Stress; Author: moodlemech;https://www.youtube.com/watch?v=9QIqewkE6xM;License: Standard Youtube License