TB 26-08 Complex Modes in Lightly Damped Structural Systems: A Two-Mode Interaction Perspective
For more information, contact Joel W. Sills, Langley Research Center, joel.w.sills@nasa.gov Download the PDF version Complex mode shapes can emerge in a linear structure even when overall damping is low. This behavior can occur when two structural modes are closely spaced in frequency and are coupled through nonproportional damping. As the [...]








