Vibration Effects of Nonclassically Damped Building-Piping Systems Subjected to Extreme Loads
Joint Authors
Ju, Bu Seog
Ryu, YongHee
Jung, Woo Young
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-01
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Piping leakage can occur at T-joint, elbows, valves, or nozzles in nuclear power plants and nonnuclear power plants such as petrochemical plants when subjected to extreme loads and such leakage of piping systems can also lead to fire or explosion.
For example, leakage of sodium, toxic gases, or nitrogen in hospitals can cause man-made hazards.
The primary objective of this research is to understand the vibration effects due to classical/nonclassical damping with building-piping systems under extreme loads.
The current evaluation employed finite-element analysis to calculate the effects of the responses of classically and nonclassically damped building-piping systems.
Classical and nonclassical damping matrices for a coupled primary-secondary system were developed based on the Rayleigh equation.
A total of 10 selected ground motions were applied to single degree of freedom (SDOF) primary-SDOF secondary (2-DOF coupled) systems in which the ratios of the natural frequencies between the primary and secondary systems ranged between 0.9 and 1.1.
It revealed that the vibration effect of nonclassical damping was significant where the natural frequencies of the two systems were nearly tuned.
For piping-material nonlinearity, the effects of nonclassical damping on the result forces of piping systems were not significantly different from those of classical damping.
American Psychological Association (APA)
Ryu, YongHee& Jung, Woo Young& Ju, Bu Seog. 2016. Vibration Effects of Nonclassically Damped Building-Piping Systems Subjected to Extreme Loads. Shock and Vibration،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1119443
Modern Language Association (MLA)
Ryu, YongHee…[et al.]. Vibration Effects of Nonclassically Damped Building-Piping Systems Subjected to Extreme Loads. Shock and Vibration No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1119443
American Medical Association (AMA)
Ryu, YongHee& Jung, Woo Young& Ju, Bu Seog. Vibration Effects of Nonclassically Damped Building-Piping Systems Subjected to Extreme Loads. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1119443
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119443