Effects of supporting structures on dynamic response of nuclear power plant equipment and piping systems
This paper presents the evaluation of the effects of supporting structures in dynamic analysis of equipment or piping systems, which involves formulations for determining reduced stiffness and mass matrices associated with the number of degrees of freedom corresponding to the support nodal points of a finite element model. Also, evaluation of a composite damping matrix associated with different damping properties of supporting structures, equipment, and piping systems is considered. Determination of spring constants, effective masses and mass moments of inertia, and damping values as fractions of critical damping on the basis of the theory of rigid bases on the surfaces of an elastic halfspace is demonstrated.
- Research Organization:
- Ebasco Services Inc., New York, NY
- OSTI ID:
- 5376578
- Report Number(s):
- CONF-820465-
- Journal Information:
- Proc. Am. Power Conf.; (United States), Journal Name: Proc. Am. Power Conf.; (United States) Vol. 44; ISSN PAPWA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
220200* -- Nuclear Reactor Technology-- Components & Accessories
DYNAMIC LOADS
ELASTICITY
FINITE ELEMENT METHOD
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
NUMERICAL SOLUTION
PIPES
POWER PLANTS
STRESS ANALYSIS
SUPPORTS
TENSILE PROPERTIES
THERMAL POWER PLANTS