QUESTIONThe dynamic response of a water tower subjected to a blast loading will now be presented to illustrate the above numerical procedure for obtaining undamped response through the time domain. The idealizations of the structure and blast loading are shown below.

For this system, the vibration frequency and period are

ANSWERWill be solved by Duhamel Method.

Initial Datap(t) maks96.6kips

frekuensi sudut30rad/s

M14

M21

F0.00001852ft/kip

k2700kips/ft

Grafik 1 Plots Of The Time-History Of Displacement For Undamped

Grafik 2 Plots Of The Time-Histories Of Spring Force Response For The Undamped