Concept explainers
(a)
The amplitude of the fluctuating force transmitted to the foundation.
Answer to Problem 19.166RP
The amplitude of the fluctuating force transmitted to the foundation is
Explanation of Solution
Given information:
The mass of the motor is
Expression for unbalanced force.
Here, the mass of the unbalance of the rotor is
Expression for the maximum amplitude of the vertical motion.
Calculation:
Substitute
Substitute
Expression for the amplitude of the fluctuating force transmitted to the foundation.
Substitute
Conclusion:
The amplitude of the fluctuating force transmitted to the foundation is
(b)
The amplitude of the vertical motion of the rotor.
Answer to Problem 19.166RP
The amplitude of the vertical motion of the rotor is
Explanation of Solution
Given information:
Given information:
The mass of the motor is
Expression for unbalanced force.
Here, the mass of the unbalance of the rotor is
Expression for the amplitude of the fluctuating force.
Calculation:
Substitute
Substitute
Conclusion:
The amplitude of the vertical motion of the rotor is
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Chapter 19 Solutions
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