0
RESEARCH PAPERS

The Influence of High-Frequency Excitation on Piping and Support Design

[+] Author and Article Information
J. Lockau, E. Haas, F. Steinwender

Kraftwerk Union, Offenbach, West Germany

J. Pressure Vessel Technol 106(2), 177-187 (May 01, 1984) (11 pages) doi:10.1115/1.3264326 History: Received May 04, 1983; Revised January 05, 1984; Online November 05, 2009

Abstract

The effect of a high-frequency excitation on piping systems and supports is demonstrated. The influence of local plasticity on the dynamic behavior is shown in an analytical benchmark. The evaluation of several full-scale experiments resulted in rather large safety margins between calculated and allowed stresses. The stresses were calculated following the standard nuclear codes. No failure occurred in the tested structures even under extreme overloading. This demonstrates the high capacity of structures to survive dynamic load. A theoretical explanation is found in the effect of energy absorption by plastic deformation. This effect has been evaluated in a 1-DOF system showing for austenitic material 15 percent of material damping for 3 S m . If this effect should be the result of modal response spectra analysis, the corresponding spectra would have to show very flat amplification ranges. The reduction of the overstresses by this approach could be shown in 2 numerical examples.

Copyright © 1984 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In