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3 cards from this section. Quick, good the night before a test.
Define forced vibration in the context of SDOF systems.
Think about what causes the vibrations in terms of external stimuli.
What is the transient response?
Consider how the system behaves immediately versus later.
What occurs during forced vibration?
Consider the definition difference between free and forced vibrations.
True or False: Steady-state response only occurs in the absence of damping.
Remember, all systems experience steady behaviors with continuous forces.
Calculate the steady-state amplitude for a SDOF system with mass = 5 kg, stiffness = 500 N/m and damping = 40 Ns/m given an external force F_0 = 200 N at frequency ω = 5 rad/s.
Break down the formula into components step by step.
Discuss the implication of resonance in seismic design. Why is ensuring that natural frequencies are distinct from seismic excitation frequencies crucial?
Reflect on the consequences of structural overload during actual seismic events.
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