The Influence of Support Hardware and Piping System Seismic Response on Snubber Support Damping

[+] Author and Article Information
C. Lay, O. A. Abu-Yasein, M. A. Pickett

Department of Civil Engineering, College of Engineering, University of Toledo 2801 W. Bancroft Street, Toledo, OH 43606-3390

J. Madia, S. K. Sinha

Consolidated Edison, New York, New York

J. Pressure Vessel Technol 119(4), 451-456 (Nov 01, 1997) (6 pages) doi:10.1115/1.2842329 History: Received December 01, 1994; Revised June 05, 1997; Online February 11, 2008


The damping coefficients and ratios of piping system snubber supports were found to vary logarithmically with pipe support nodal displacement. For piping systems with fundamental frequencies in the range of 0.6 to 6.6 Hz, the support damping ratio for snubber supports was found to increase with increasing fundamental frequency. For 3-kip snubbers, damping coefficient and damping ratio decreased logarithmically with nodal displacement, indicating that the 3-kip snubbers studied behaved essentially as coulomb dampers; while for the 10-kip snubbers studied, damping coefficient and damping ratio increased logarithmically with nodal displacement.

Copyright © 1997 by The American Society of Mechanical Engineers
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