A three store frame is subjected to an excitation force of P cos WL at the...

 

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A three store frame is subjected to an excitation force of P cos WL at the top level Due to steady state vibration, Determine the response at the top level on the basis of consideration of first mode only and first two modes only for W = 0 and W = 0.5 P₁ → Pcoscot m: 20€ M> 20t m=sot 1x2 151 = 160 kN/mm -7x2160 b/mm K₂= -74-3 K3=240 kN/mm A three store frame is subjected to an excitation force of P cos WL at the top level Due to steady state vibration, Determine the response at the top level on the basis of consideration of first mode only and first two modes only for W = 0 and W = 0.5 P₁ → Pcoscot m: 20€ M> 20t m=sot 1x2 151 = 160 kN/mm -7x2160 b/mm K₂= -74-3 K3=240 kN/mm