RMS fatigue curves for random vibrations

Conference · Fri Jun 01 04:00:00 EDT 1984 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:6150147

Brenneman, B; Talley, J G

Fatigue usage factors for deterministic or constant amplitude vibration stresses may be calculated with well known procedures and fatigue curves given in the ASME Boiler and Pressure Vessel Code. However, some phenomena produce nondeterministic cyclic stresses which can only be described and analyzed with statistical concepts and methods. Such stresses may be caused by turbulent fluid flow over a structure. Previous methods for solving this statistical fatigue problem are often difficult to use and may yield inaccurate results. Two such methods examined herein are Crandall's method and the ''3sigma'' method. The objective of this paper is to provide a method for creating ''RMS fatigue curves'' which accurately incorporate the requisite statistical information. These curves are given and may be used by analysts with the same ease and in the same manner as the ASME fatigue curves.

• Research Organization: Babcock and Wilcox, Lynchburg, Virginia
• OSTI ID: 6150147
• Report Number(s): CONF-840647-
• Conference Information: Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 84-PVP-60
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
AMPLITUDES
DIAGRAMS
FATIGUE
FLUID FLOW
MATHEMATICS
MECHANICAL PROPERTIES
MECHANICAL VIBRATIONS
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
POWER PLANTS
REACTOR COMPONENTS
STATISTICS
STRESSES
THERMAL POWER PLANTS
TURBULENT FLOW