Vibration-damping structural member

Details Vibration-damping structural member Vibration-damping structural member

1990-02-09

1992-02-11

Sluby, P. C.

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428218, 428220, 4284111, 428414, 428415, 428408, 428511, 248560, 248636, 248638, F16C 2706, F16C 140, B32B 1508

Patent

active

050874918

ABSTRACT:
A structural element or member is disclosed that resists or damps vibration rom loads applied along a given axis without significantly sacrificing stiffness, through the use of stress coupling within an anisotropic material. Essentially, the structural member comprises alternating layers or laminates of stiff and viscoelastic or damping material bonded together to form a laminated structrue. The laminated structural member is oriented to receive the applied load in a direction that is parallel to the laminates. At least one of the stiff laminates shows anisotropic behavior when acted upon by the axial load, causing shear strain and concomitant transverse displacement therewithin, thereby loading the viscoelastic laminate in shear.

REFERENCES:
patent: 4079926 (1978-03-01), Nunes
patent: 4278726 (1981-07-01), Wieme
patent: 4447493 (1984-04-01), Driscoll et al.
patent: 4728831 (1988-03-01), Cheng
patent: 4740427 (1988-04-01), Ochiumi et al.
patent: 4778028 (1988-10-01), Staley
patent: 4822834 (1989-04-01), Blevins

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