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4 cards from this section. Quick, good the night before a test.
Define amplitude in the context of vibrations.
Think about what happens when something vibrates.
What does the phase angle indicate?
It’s like a clock between two events.
What is the maximum displacement in vibration known as?
Remember the definition of displacement.
True or False: The phase angle measures how quickly a system responds to excitation.
Think about what phase angle represents.
Given a system with a natural frequency of 1 Hz, calculate the amplitude response when subjected to a 1.5 Hz excitation frequency. Assume it reaches resonance.
What happens to a system at its natural frequency?
Design a simple model to calculate logarithmic decrement for a damping system with two successive amplitudes of 2m and 1.5m.
Use the formula δ = ln(A1/A2) where A1 and A2 are your successive amplitudes.
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