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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Figure P9.2 shows a lumped-mass model of an airplane wing. The stiffness and mass matrices for this

(a) Determine the two natural frequencies of the structure, ω1 and ω2 and express them in terms of the stiffness and mass coefficients k and m, respectively. (b) Determine the two corresponding mode shapes. Scale them so that the maximum displacement is 1.0. Sketch the two modes.

Hel-----------lo -----------Sir-----------/Ma-----------dam-----------Tha-----------nk -----------You----------- fo-----------r u-----------sin-----------g o-----------ur -----------web-----------sit-----------e a-----------nd -----------acq-----------uis-----------iti-----------on -----------of -----------my -----------pos-----------ted----------- so-----------lut-----------ion-----------.Pl-----------eas-----------e p-----------ing----------- me----------- on-----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill----------- be-----------