|
D. Tang, M. Hecht, X. An, "MEADEP and Its Applications in Dependability Analysis
for a Nuclear Power Safety System", IEEE/ANS Symposium on Nuclear Power Systems,
Albuquerque, New Mexico, November, 1997
This paper presents a measurement-based dependability modeling and evaluation tool
MEADEP
and its application in analyzing a nuclear power safety system. Features
of MEADEP
include: a data processor for converting data in various formats to the
MEADEP
format, a statistical analysis module for graphical data presentation and
parameter estimation, a graphical modeling interface for building reliability block
and Markov diagrams, a library of dependability models for constructing customer
models, and a model solution module for dependability calculation and parametric
analysis. Use of the tool on failure data from measurements can provide quantitative
assessments of dependability for critical digital systems, while greatly reducing
requirements for specialized skills in data processing, analysis, and modeling from
the user. The application of MEADEP on safety systems is demonstrated by modeling
and analyze dependability for a nuclear power safety system based on the Eagle 21
architecture and its early field failure reports. The model is used to analyze the
sensitivity of the plant Mean Time Between Hazards (MTBH) to various parameters.
The most sensitive parameter and the most sensitive segment for the parameter are
identified by the study.
Click to Download
|
|
