An analysis is given for the vibration of a long sandwich plate with linear internal damping properties. The plate is subjected to a time-harmonic pressure loading of constant amplitude and is considered vibrating both in vacuo and in an environment consisting of vacuum on one side and a fluid medium on the other. Numerical results are presented for both a conventional and a highly damped sandwich plate. The conventional (aluminum honeycomb) sandwich plate produces only a small amount of damping, but when the honeycomb core is replaced by a highly dissipative thermoplastic, the maximum deflection and stress at resonance are reduced theoretically by about two orders of magnitude.
Issue Section:
Research Papers
Topics:
Fluids,
Vibration,
Damping,
Honeycomb structures,
Aluminum,
Deflection,
Pressure,
Resonance,
Stress,
Vacuum
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Copyright © 1965
by ASME
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