INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780357670590
Author: Herman
Publisher: CENGAGE L
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Chapter 33, Problem 9RQ
To determine
The action of the circuit if timers TR1 and TR2 were to be replaced with the off delay timers.
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180-
Dimensions in mm
100
100
D
E
Steel B
Brass
60 kN
40 kN
40-mm diam.
30-mm diam.
PROBLEM 2.40
Solve Prob. 2.39, assuming that rod AC is made of brass and
rod CE is made of steel.
PROBLEM 2.39 Two cylindrical rods, one of steel and the
other of brass, are joined at C and restrained by rigid supports at A
and E. For the loading shown and knowing that E = 200 GPa
and E, 105 GPa, determine (a) the reactions at A and E, (b) the
deflection of point C.
=
R = 45.5 kN ←
A
Dimensions in mm
100
100
-180-
-120-+-
C
D
Steel B
Brass
60 kN
40 kN
40-mm diam.
30-mm diam.
E
PROBLEM 2.39
Two cylindrical rods, one of steel and the other of brass, are joined at
Cand restrained by rigid supports at A and E. For the loading shown
and knowing that E = 200 GPa and E₁ = 105 GPa, determine
(a) the reactions at A and E, (b) the deflection of point C.
(read image) (Answer: vE = 0.514 m/s)
Chapter 33 Solutions
INDUSTRIAL MOTOR CONTROL
Ch. 33 - Prob. 1RQCh. 33 - Why is direct current more difficult to interrupt...Ch. 33 - Why are clapper-type contactors generally used to...Ch. 33 - Prob. 4RQCh. 33 - How is the inrush current to large DC motors often...Ch. 33 - Prob. 6RQCh. 33 - How is the FCR connected in relationship to the...Ch. 33 - Prob. 8RQCh. 33 - Prob. 9RQ
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