Theory and Design for Mechanical Measurements
6th Edition
ISBN: 9781118881279
Author: Richard S. Figliola, Donald E. Beasley
Publisher: WILEY
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Chapter 7, Problem 7.5P
An experimental analysis of the natural oscillations in
a particular structure shows the dominant frequencies of interest appear at below 200 Hz. However, frequency information also exists at 350, 450, and 750 Hz. If the signal is sampled at 400 Hz, how will the information in the aliased frequencies appear in the sampled data. How can one prevent this information from being superposed onto the desired signal?
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QUESTION 4
Consider a 2 DOF system shown below.
k₁
k₂
non
m2
F₁
F
kz
Find the second natural frequency (in rad/s) for the system shown below. Use scientific notation with 3 significant digits. Omit units. (eg. 2.03e0)
Let m1 = 3, m2 = 3, k1 = 4, k2 = 6, and k3 = 8.
ibä 30
A vehicle wheel, tire, and suspension
can be modeled as a SDOF spring and
mass as depicted below: The mass of
the wheel and tire is measured to be
300 kg and its frequency of oscillation
is observed to be 10 rad/sec. What is
the stiffness of the wheel assembly?
Also, calculate the frequency in Hz
* ?and the time of period in sec
اكتب المطلوب من السؤال فقط بدون ذکر التفاصيل )النواتج
المطلوبة فقط(. 30 درجة
vchicle frame
-suspension
tire and wheel
A single degree-of-freedom linear elastic structure was subjected to a series of harmonic
excitations, one at a time. The excitations had the same forcing magnitude but different forcing
frequency. Forcing frequencies and observed peak steady-state displacements are shown in the graph
below. Find the natural period and damping ratio of the structure.
Displacement (mm)
60
50
40
30
20
10
0
0
1
2
.
3
4
Forcing frequency, f [Hz]
5
4.
6
7
Chapter 7 Solutions
Theory and Design for Mechanical Measurements
Ch. 7 - Prob. 7.1PCh. 7 - Prob. 7.2PCh. 7 - Prob. 7.4PCh. 7 - An experimental analysis of the natural...Ch. 7 - A particular data acquisition system is used to...Ch. 7 - Prob. 7.7PCh. 7 - A golf cart engine operates between 1,000 to 3,000...Ch. 7 - Prob. 7.9PCh. 7 - Prob. 7.10PCh. 7 - Prob. 7.11P
Ch. 7 - 7.12 Convert the following straight binary numbers...Ch. 7 - Convert (a) 1100111.1101 (binary) into a base 10...Ch. 7 - 7.14 Convert the following decimal (base 10)...Ch. 7 - Prob. 7.15PCh. 7 - 7.16 Compute the resolution and SNR for an M-bit...Ch. 7 - Prob. 7.17PCh. 7 - Prob. 7.18PCh. 7 - 7.19 Determine the minimum number of bits required...Ch. 7 - 7.20 An 8-bit single-ramp A/D converter with £fsr...Ch. 7 - Prob. 7.21PCh. 7 - An 8-bit D/A converter shows an output of 3.58 V...Ch. 7 - 7.23 During a test, the exact output from a load...Ch. 7 - 7.24 A 0- to 10-V, 4-bit successive approximation...Ch. 7 - Prob. 7.25PCh. 7 - Prob. 7.26PCh. 7 - Prob. 7.27PCh. 7 - Prob. 7.28PCh. 7 - Prob. 7.29PCh. 7 - Prob. 7.30PCh. 7 - Prob. 7.31PCh. 7 - Prob. 7.32PCh. 7 - Prob. 7.33PCh. 7 - Prob. 7.34PCh. 7 - Select an appropriate sample rate and data number...Ch. 7 - A triangle wave with a period of 2 s can be...Ch. 7 - Prob. 7.37PCh. 7 - Prob. 7.38PCh. 7 - Prob. 7.39PCh. 7 - Prob. 7.40PCh. 7 - Design a cascading LC Butterworth low-pass filter...Ch. 7 - Choose an appropriate cascading low-pass filter to...Ch. 7 - The voltage output from a J-type thermocouple...Ch. 7 - Prob. 7.44PCh. 7 - Prob. 7.45PCh. 7 - Prob. 7.46PCh. 7 - Prob. 7.47PCh. 7 - Prob. 7.48PCh. 7 - Prob. 7.49PCh. 7 - Prob. 7.50PCh. 7 - Prob. 7.51PCh. 7 - Prob. 7.52PCh. 7 - Prob. 7.53PCh. 7 - Prob. 7.54PCh. 7 - Prob. 7.55P
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