Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Chapter 42, Problem 9RQ
How do you get from the factory design shown in Figure 42.10 to the design shown in Figure 42.12?
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An aluminum rod of length L
=
1m has mass density p = 2700 kg and
Young's modulus E = 70 GPa. The rod is fixed at both ends. The exact
natural eigenfrequencies of the rod are wexact
E
=
√
ρ
for n=1,2,3,. . . .
1. What is the minimum number of linear elements necessary to
determine the fundamental frequency w₁ of the system? Discretize
the rod in that many elements of equal length, assemble the global
system of equations KU = w² MU, and find the fundamental
frequency w₁. Compute the relative error e₁ = (w1 - wexact) /w exact
Sketch the fundamental mode of vibration.
2. Use COMSOL to solve the same problem. Show the steps necessary
to find the fundamental frequency and mode of the rod. What is the
relative error using linear elements and a normal mesh?
A ball with a mass of 5.0 kg is hanging from a string and is initially at rest.
A bullet with a mass of 10.0 g and a velocity of 200.0 m/s is fired at the ball.
The bullet embeds itself inside the ball.
How high (h) do the ball and the bullet rise?
Gravitational acceleration: g=9.81g = 9.81g=9.81 m/s².
Don't use chatgpt.
Need handwritten solution.
Mechanical engineering
Chapter 42 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 42 - How is the lean engineers job different from the...Ch. 42 - Why did the development of iron and steel promote...Ch. 42 - How mass-production system differ from the lean...Ch. 42 - Who might have the best ideas about how to improve...Ch. 42 - Who should be tasked with sustaining and...Ch. 42 - Describe the difference between leveling and...Ch. 42 - Describe the difference between sequencing and...Ch. 42 - Prob. 8RQCh. 42 - How do you get from the factory design shown in...Ch. 42 - Many companies build and customize their...
Ch. 42 - Give a detailed discussion of the TSS and how it...Ch. 42 - What are the lean engineering tasks for...Ch. 42 - Prob. 13RQCh. 42 - Prob. 14RQCh. 42 - What is the fundamental difference between how...Ch. 42 - How is the rabbit chase used in an assembly cell?...Ch. 42 - How is production control accomplished in lean...Ch. 42 - In Figure 42.13, there are decouplers between each...Ch. 42 - Many lean manufacturing cells have no decouplers....Ch. 42 - The automobile has about 5000 parts. How many...Ch. 42 - Prob. 3PCh. 42 - Prob. 4PCh. 42 - Calculate the cycle time for the cell. It should...Ch. 42 - Prob. 2CSCh. 42 - Prob. 3CS
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