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Basic Study on Dynamic Reliability of Machinery and Piping System Supported by Elasto-Plastic Supports With Gaps

[+] Author Affiliations
Atsuhiko Shintani, Keishi Tsujita, Tomohiro Ito, Chihiro Nakagawa

Osaka Prefecture University, Sakai-City, Osaka, Japan

Paper No. PVP2015-45419, pp. V008T08A006; 8 pages
doi:10.1115/PVP2015-45419
From:
  • ASME 2015 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Boston, Massachusetts, USA, July 19–23, 2015
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5703-8
  • Copyright © 2015 by ASME

abstract

In this study, the vibrational behavior of piping systems supported by elasto-plastic dampers with gap supports was considered. First, an analytical model of L-type piping systems subjected to white noise was derived, including the nonlinear characteristics of the elasto-plastic dampers and gap supports. After the stress, energy absorption, and other parameters were calculated for many inputs, the dynamic reliability was calculated based on random theory. Optimization of the support locations was investigated. Finally, the effects of a gap support on the dynamic reliability were investigated.

Copyright © 2015 by ASME

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