Abstract
The periodic oscillations of discrete structural systems with follower-force loading are studied in the region of the critical point. The case in which small initial geometric imperfections exist in the structure is also examined. Flutter instability is found to be much less sensitive to initial imperfections than is static instability. Critical loads are destabilized (or stabilized) in either a linear or parabolic fashion with imperfection amplitude. The postcritical characteristics of the flutter exhibited cannot be altered by initial imperfections.
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