Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Chapter 10, Problem 1RQ
Explain the difference between inching and jogging.
Expert Solution & Answer
To determine
The difference between inching and jogging.
Explanation of Solution
Jogging:
Jogging is to start a motor with short nudges of power at full voltage. Jogging should not exceed 5 times in a minute and if frequently done, the starter of the motor will be de-rated.
Inching:
Inching is similar to jogging but at reduced voltage. Inching is to start a motor with short nudges of power at reduced voltage.
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(30 pts) Problem 1
A thin uniform rod of mass m and length 2r rests in a smooth hemispherical bowl of radius r. A
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mgr
4
is applied to the rod. Assume that the bowl is fixed and its rim is in the
horizontal plane.
HINT: It will help you to find the length l of that portion of the rod that remains outside the
bowl.
M
2r
a) How many degrees of freedom does this system have?
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center of mass (TF)
c) Derive an equation for the variation in the position of the center of mass (i.e., Sŕƒ)
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d) In the case of no applied moment (i.e., M 0), derive an equation that can be used to
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e) In the case of an applied moment (i.e., M
=
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= -) derive an equation that can be used to
4
solve for the equilibrium angle of the rod. DO NOT solve the equation.
f) Can…
Please show all work step by step
Chapter 10 Solutions
Understanding Motor Controls
Ch. 10 -
Explain the difference between inching and...Ch. 10 - What is the main purpose of jogging?Ch. 10 - Refer to the circuit shown in Figure 108. In this...Ch. 10 - Refer to the circuit shown in Figure 109. In this...Ch. 10 - Refer to the circuit shown in Figure 107. Assume...Ch. 10 - Prob. 6RQCh. 10 - Prob. 7RQ
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