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16、 V JLY H Q E WKHI ROORZL Q JHTXD W L RQZ KHU H P L VWKHWRWD OPD VV RI W KH D VVH P E O L QNL ORJ U D PV N J nullnullnullnull nullnullnull nullnullnullnullnullnullnullnullnullnullthe sway mode coupled frequencies which result when the vertical offset is not negligible. 1/ 2VV12=kfm(A.11) and sway modes. Thus, the decoupled mode approach will tend to under-predict the rocking mode and over-predict KH VVWIn general, the effect of coupling is to increase the separation in frequency between the decoupled rocking
