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 20, Problem 1P
In the traditional coordinate dimensioning system, which of the following is true? (Select one.)
- i. Only “features of size” need to include a tolerance.
- ii. Only dimensions that are important need to include a tolerance.
- iii. Only dimensions that need to be tightly controlled need to include a tolerance.
- iv. iv. All dimensions should include a tolerance.
Expert Solution & Answer
To determine
The validation of the statement in the traditional co-ordinate dimensioning system.
Explanation of Solution
The traditional way of coordinate measurement includes the tolerance of all the dimensions. The tolerance is indicated by either plus or minus sign with the basic size in a defined form. However, the traditional way of coordinate measurement system lacks in defining all the geometric attributes of a feature such as orientation and form. But the statement i, ii, and iii specify the tolerance for the particular cases. Thus, the traditional coordinate measurement system includes the tolerance to all the dimensions which it defines.
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Students have asked these similar questions
Problem4.
The thin uniform disk of mass m = 1-kg and radius R = 0.1m spins about the bent shaft OG with
the angular speed w2 = 20 rad/s. At the same time, the shaft rotates about the z-axis with the angular
speed 001 = 10 rad/s. The angle between the bent portion of the shaft and the z-axis is ẞ = 35°. The
mass of the shaft is negligible compared to the mass of the disk.
a. Find the angular momentum of the disk with respect to point G, based on the axis
orientation as shown. Include an MVD in your solution.
b. Find the angular momentum of the disk with respect to point O, based on the axis
orientation as shown. (Note: O is NOT the center of fixed-point rotation.)
c. Find the kinetic energy of the assembly.
z
R
R
002
2R
x
Answer: H = -0.046ĵ-0.040 kg-m²/sec
Ho=-0.146-0.015 kg-m²/sec
T 0.518 N-m
=
Problem 3.
The assembly shown consists of a solid sphere of mass m and the uniform slender rod of the same
mass, both of which are welded to the shaft. The assembly is rotating with angular velocity w at a
particular moment. Find the angular momentum with respect to point O, in terms of the axes
shown.
Answer: Ñ。 = ½mc²wcosßsinßĵ + (}{mr²w + 2mb²w + ½ mc²wcos²ß) k
3
m
r
b
2
C
لا
m
Only question 2
Chapter 20 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 20 - In the traditional coordinate dimensioning system,...Ch. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - What is the term that refers to a feature which...Ch. 20 - What are the four geometric attributes that must...Ch. 20 - Prob. 6PCh. 20 - What are the three geometric characteristics that...Ch. 20 - What are the three geometric characteristics that...Ch. 20 - How is a basic dimension toleranced? (Select one.)...Ch. 20 - Prob. 10P
Ch. 20 - For the part shown, clearly identify each of the...Ch. 20 - Prob. 12PCh. 20 - For the part shown, answer the following questions...Ch. 20 - For the part shown, answer the following questions...Ch. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - Prob. 19PCh. 20 - A shaft diameter is dimensioned 20 0.2. According...Ch. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Which geometric characteristics never reference...Ch. 20 - Answer the following questions regarding material...Ch. 20 - The drawing shown is of a mounting fixture to...
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