The rigidity effect of surrounding elastic medium is remarkable not only to the real characteristic frequencies of cylindrical shells but also to the cut-off axialmode.
弹性介质刚度不仅对充液圆柱壳的实固有频率影响显著，而且影响其截止轴向模态。
2
Whether permanent displacement of dam or the axial forces of anchor, the rigid attended mode is better than the free attended mode.
无论从坝体的永久位移还是筋层轴力分布角度，坝内筋端的铰结连接方式要好于自由连接方式。
3
A new warping displacement mode of wide flange is chosen to meet the axial self-equilibrium condition for corresponding stress.