Stochastic response of piping systems with flexible supports
- Zagazig Univ. (Egypt). Dept. of Civil Engineering
- Indian Inst. of Technology, New Delhi (India). Dept. of Civil Engineering
A frequency domain spectral analysis of piping systems with flexible supports is presented for uniformly modulated nonstationary support excitations. The support points are idealized by spring-dashpot arrangements. The equations of motion of the resulting nonclassically damped, multipoint excitation system are written and solved in terms of the absolute displacements of the dynamic DOF. This facilitates a direct computation of the dynamic stresses induced at various cross sections of the pipe segments. The method of analysis provides a quasi-stationary response based on the assumption that the modulating function varies slowly with time; the exact response analysis in frequency domain for such systems with nonstationary support excitation is difficult to determine. Using the method of analysis presented, the response of a piping system is obtained for a set of important parametric variations related to the flexibility, damping, and excitation of the supports.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 197596
- Journal Information:
- Journal of Pressure Vessel Technology, Journal Name: Journal of Pressure Vessel Technology Journal Issue: 1 Vol. 118; ISSN 0094-9930; ISSN JPVTAS
- Country of Publication:
- United States
- Language:
- English
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