Segmented porous damper

Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber

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188296, F16F 914, F16D 5702

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active

051218194

ABSTRACT:
A damper system is disclosed in which is provided a segmented damper for damping the vibrations of a rotating shaft, the damper comprising a sealed porous fixed normally concentric cylinder surrounding the shaft, the space between the porous cylinder and the shaft being axially segmented by radial walls extending parallel to the axis of the shaft, the segmented space being filled with a fluid which is driven through the pores of said cylinder when said shaft vibrates to provide linear dampling.

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D. L. Taylor et al, "Analysis and Design of Segmented Dampers for Rotor Dynamic Control," Trans. of the ASME, vol. 104, pp. 84-90, Jan. 1982.
S. T. Bhat et al, "Analysis of High Load Dampers," NASA, CR-165503, Aug. 1981.
J. Prakash et al, "An Analysis of the Squeeze Film Between Rough Porous Rectangular Plates with Arbitrary Porous Wall Thickness," Trans. of ASME, Journal of Tribology, vol. 106, pp. 218-221, Apr. 1984.
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