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3 cards from this section. Quick, good the night before a test.
What does Rayleigh’s Method estimate?
Think about the purpose of the method.
What happens when the stiffness of a structure increases?
Recall how stiffness affects vibrations.
What does Rayleigh’s Method primarily calculate?
Focus on the main outcome of the method.
True or False: Increasing stiffness always leads to lower natural frequencies.
Recall the relationship between stiffness and frequency.
A beam has a stiffness (EI) of 1000 N·m² and a density (ρ) of 7800 kg/m³. Calculate its natural frequency if the cross-sectional area is 0.01 m².
Keep the units consistent while calculating.
Discuss a situation in which Rayleigh's Method would not provide an accurate estimate of a structure's natural frequency.
Think about the importance of proper assumptions in modeling.
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