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PKSC 4040 Exam 1 Questions & Answers 2024/2025

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PKSC 4040 Exam 1 Questions & Answers 2024/2025

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  • November 2, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • PKSC 4040
  • PKSC 4040
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PKSC 4040 Exam 1 Questions &
Answers 2024/2025

Single Degree of Freedom System - ANSWERSIndependent coordinate required to fully describe the
motion of a system



Free Vibration - ANSWERSNo external forces. Vibration occurs at the systems natural frequency.
Excitation is an initial position or velocity.



Forced Vibration - ANSWERSExcitation by external forces. When external forces are oscillatory, vibration
occurs at the oscillatory frequency.



Random Vibration - ANSWERSMany harmonic vibrations with different intensities and frequencies
occurring at the same time



Resonance - ANSWERSOccurs when the vibration input to a system is at the natural frequency of the
system



Magnification Factor(M) - ANSWERSOutput/input

OR

1/1 - (ff/fn)squared



Underdamped System - ANSWERSZeta<1 and this is where the system oscillates



Critically Damped System - ANSWERSZeta=1 and NO oscillation occurs, the system comes to rest as
quickly as possible



Overdamped System - ANSWERSZeta>1 and the system takes a awhile to come to rest

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