EFFECT OF TEMPERATURE-CHANGES ON DAMPING PROPERTIES OF SANDWICH CYLINDRICAL PANELS

The effect of changing temperature on the damping properties of free v ibrations of sandwich cylindrical panels is studied in this paper. It is assumed that the material properties of the facings and core of the sandwich panel studied change with temperature. The effects of the vi scoelastic damping of the core layer and geometrical non-linearities o f the vibrating panel have been included in this study. Dissipated ene rgy is used to investigate the damping. It is found that the rapidly c hanging temperature strongly affects the vibration responses and dampi ng properties of the cylindrical sandwich panels.