Statics and Mechanics of Materials (5th Edition)
5th Edition
ISBN: 9780134382593
Author: Russell C. Hibbeler
Publisher: PEARSON
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Textbook Question
Chapter 5.5, Problem 45P
The pumping unit is used to recover oil. When the walking beam ABC is horizontal, the force acting in the wireline at the well head is 250 lb, Determine the torque M which must be exerted by the motor in order to overcome this load. The horse-head C weighs 60 lb and has a center of gravity at GC. The walking beam ABC has a weight of 130 lb and a center of gravity at GB, and the counterweight has a weight of 200 lb and a center of gravity at GW. The pitman, AD, is pin connected at its ends and has negligible weight.
Prob. 5-45
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The pumping unit is used to recover oil. When the walking beam ABC is
horizontal, the force acting on wireline at the well head is 250 lb. Determine the
torque M which must be exerted by the motor in order to overcome this load.
The horse head C weighs 60 lb. and have center of gravity at Gc. The walking
beam ABC has weight of 130 lb. and center of gravity at Gb , and the
counterweight has weight of 200 lb. and center of gravity at Gw. The pitman , AD
, is pin connected at the ends and has negligible weight.
5. The pumping unit is used to recover oil. When the walking beam ABC is horizontal, the force
acting in the wireline at the well head is 250 lb. Determine the torque M which must be
exerted by the motor in order to overcome this load. The horse-head C weighs 60 lb and
has a center of gravity at Gc. The walking beam ABC has a weight of 130 lb and a center
of gravity at Gs, and the counterweight has a weight of 200 lb and a center of gravity at
Gw. The pitman, AD, is pin connected at its ends and has negligible weight.
-5 ft
-6 ft
!GB
B
70°
20°
250 Ib
3 ft 2.5 ft
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Chapter 5 Solutions
Statics and Mechanics of Materials (5th Edition)
Ch. 5.3 - In each ease, calculate the support reactions and...Ch. 5.3 - Identify the zero-force members in each truss....Ch. 5.3 - Determine the force in each member of the truss...Ch. 5.3 - Determine the force in each member of the truss...Ch. 5.3 - Determine the force in each member of the truss...Ch. 5.3 - Determine the greatest load P that can be applied...Ch. 5.3 - Identify the zero-force members in the truss....Ch. 5.3 - Determine the force in each member of the truss...Ch. 5.3 - Determine the force in each member of the truss...Ch. 5.3 - Determine the force in each member of the truss...
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