What is
reliability analysis?
Reliability analysis includes a
complex of procedures related to performing
quantitative assessments of developed product at
every stage of its life cycle.
Reliability analysis includes reliability
calculations performed at the stages of preliminary
design and detailed design, failure data analysis
based on the results of special tests and operating
testing as well as data received from a
customer/user. Performing quantitative assessments
of different aspects of maintenance, including spare
supply, is often a part of reliability analysis.
Based on reliability analysis, product developers
and manufacturers can take real efforts to improve
reliability and maintenance quality.
At preliminary design stage, reliability analysis
includes:
1. Selecting product reliability indexes that
specify this product
2. Assigning quantitative reliability standards
(requirements)
3. Developing estimation mathematical model to
describe product operation
4. Performing quantitative calculations to verify a
compliance of results with product reliability
requirements
Following the results of 1st phase of reliability
analysis, the developer carries out necessary
changes in selecting component; forming system
structure (adding necessary backup) and operation
principles (e.g. use of continuous/intermittent
availability monitoring).
At stage of detailed design, reliability analysis
includes:
1. Implementing all recommendations for improving
reliability, obtained as results of reliability
analysis at previous stage, as design solutions
2. Developing detailed mathematical model of the
system for which reliability calculation with use of
statistical reliability data of applied component is
performed
3. Calculating periodicity of preventive actions and
optimal spare parts provisioning
After building experimental model, reliability
determination tests are performed to verify numbers,
achieved as results of reliability analysis
calculations. Based on results of reliability tests,
successive efforts are undertaken to improve
reliability and carry out maintenance and repair
works.
At stage of experimental operation, the following
steps must be performed:
1. detailed analysis of system operation
2. additional reliability analysis based on
statistical data obtained with final adjustment of
design and engineering solutions before serial
production
At real operation of a product by the customer/user,
the system of statistical reliability data
collection should be organized (this requirement is
absolute for any military-oriented system). These
data together with the claims received from
operational locations of the product, are used by
system developers to perform current reliability
analysis, resulting in new recommendations for
maintenance.
On basis of the same reliability analysis the
developer generates, if necessary, the requirements
to the following system modification and
modernization.
Reliability Analysis Software
SoHaR provides world leading
Reliability Analysis Software with the following
capabilities:
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