Tuned mass damper

Details Tuned mass damper Tuned mass damper

1996-09-23

1999-06-29

Poon, Peter M.

Brakes

Inertia of damping mass dissipates motion

Resiliently supported damping mass

267 33, 267136, 521672, 521675, F16F 710

Patent

active

059155086

ABSTRACT:
An apparatus for damping dynamic response in a primary structure in one, two or three dimensions, includes a secondary mass, and a spring and a viscoelastic element, the spring and viscoelastic element interposed between the primary structure and the secondary mass. The apparatus may include a housing for the secondary mass, the spring and the viscoelastic element, should the spring, viscoelastic element, or both the spring and viscoelastic element, be interposed between the secondary mass and the housing. A method for damping dynamic response in a primary structure in one, two or three dimensions is also disclosed.

REFERENCES:
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patent: 3668939 (1972-06-01), Schrader
patent: 4371858 (1983-02-01), Kandi et al.
Chang et al., K.C., Viscoelastic Dampers as Energy Dissipation, Earthquake Spectra, vol. 9, No. 3, 1993, pp. 371-387.
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Mahmoodi, P., Structural Dampers, Journal of the Structural Division, Proceedings of the American Society of Civil Engineers, Aug., 1969, pp. 1661-1672.
Keel et al., Design of Viscoelastic Dampers for Columbia Center Building, Building Motion in Wind, American Society of Civil Engineers, Apr. 8, 1986, pp. 65-82.
Yamaguchi, H., Vibrations Of A Beam With An Absorber Consisting of A Viscoelastic Beam And A Spring-Viscous Damper, Journal of Sound and Vibration, 103(3) (1985), pp. 417-425.
Kim, K.J. et al., Application of Viscoelastic Material for a Dynamic Damper, Journal of Vibration Acoustics, Stress and Rehability in Design, Jul. 1986, vol. 108, pp. 378-381.
Halvorsen et al., Use of Rubber Materials in Tuned Dampers For Vibration and Noise Control, Rubbercon '88, pp. 1361-1377.
Mahmoodi, P. et al., Analysis and the Design of Multi-Layer Viscoelastic (VE) Damper for Tall Structures, Proceedings of Structures Congress 1989, ASCE, May 1989, San Francisco, CA.
Mahmoodi, P., Design and Analysis of Viscoelastic Vibration Dampers for Structures, 3M Industrial Specialities Division.
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Mahmoodi et al., P., Performance of Viscoelastic Dampers in World Trade Center Towers, ASCE, Structures Congress, Aug. 17-20, 1987, Orlando, FL.

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