Question
Download Solution PDFFor a lightly damped vibrating system executing steady forced vibration, the phase lag of displacement, with respect to force at resonance is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
At resonance (ω = ωn), phase angle ϕ is 90°.
When ω/ωn ≫ 1; the phase angle is very close to 180°. Here inertia force increases very rapidly and its magnitude is very large.
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