RAS; reliability analysis for phased missions. [CDC CYBER176; CDC7600,6600; FORTRAN IV (96%) and COMPASS (4%)]
The Reliability Analysis System, RAS, is an integrated package of computer programs for the quantification of fault trees. In particular, RAS has the capability of performing phased mission analysis. A phased mission is a task to be performed by a system during which the logic model and/or the component failure mode characteristics change at predetermined times. RAS is capable of finding minimal cut sets from fault trees and of calculating reliability characteristics for the basic events, the minimal cut sets, and the top event of a fault tree. In addition, mission cut set cancellation and four methods of bounding mission unreliability have been incorporated into RAS.CDC CYBER176;CDC7600,6600; FORTRAN IV (96%) and COMPASS (4%); SCOPE 2.1 (CDC7600), NOS/BE (CDC CYBER176, CDC6600); If the program is segmented, 42,000 (octal) words of small core memory (SCM) and 10 (octal) words of large core memory (LCM) are required for execution on a CDC7600. For the CDC6600, 135,000 (octal) words of central memory and 10 (octal) words of Extended Core Storage (ECS) are required. Without segmentation, additional memory will be required.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- OSTI ID:
- 6488089
- Report Number(s):
- ANL/NESC-889; ON: DE83048889
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
220900* -- Nuclear Reactor Technology-- Reactor Safety
BREEDER REACTORS
COMPUTER CODES
EPITHERMAL REACTORS
FAILURES
FAST REACTORS
FAULT TREE ANALYSIS
FBR TYPE REACTORS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
R CODES
REACTORS
RELIABILITY
SAFETY
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS