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 How do I use the two views in RGA 7 for entering data
from multiple systems (Normal and Advanced)?
RGA 7 provides two ways of combining data from multiple individual systems into a single system for
analysis purposes (called the “equivalent” system in reliability growth analyses and the “superposition”
system in fielded systems analyses).
The Normal View displays the data for multiple systems all together in the same Data Sheet.
When entering data, you use the System ID column to specify which system the data point belongs to and you use the Event
column to specify the type of event, i.e. the start time of the observation period (S), the individual failure times
(F) and the end time of the observation period (E).
For data entry, this view is useful when you are copying or importing data from another data source
(e.g. an Excel file) where you have the data for all systems in one place.
The Advanced View displays the data for each system in a separate Data Sheet. The
panel on the left side of the window displays all of the systems that have been defined in the Folio and
allows you to switch from one Data Sheet to the other.
When entering data, you specify the start and end times in the first two cells of the Time to Event column and you
enter the failure times in the remaining cells. You can use the panel on the left side of the window to add, delete and rename
systems.
With this view, when you calculate the results for the combined “superposition” or “equivalent” system analysis, you can select
which systems to include or exclude. This allows you to try different scenarios and may be useful in situations when
you are analyzing your data in multiple ways.
Can Xfmea and RCM++ share
FMEA data with XFRACAS?
Yes. Here are the instructions for sharing FMEA data between Xfmea 5/RCM++ 5
and XFRACAS:
- Using failure mode data from XFRACAS in Xfmea or RCM++:
- You can use the XFRACAS Analysis page in XFRACAS to export a list of
all failure modes for a selected part. You can then use
the Import from Excel tool in Xfmea or RCM++ and select the
XFRACAS option to import the XFRACAS data into
the FMEA for a selected item. This provides valuable information about what failure modes
(causes) have been observed
in the field and how many times they occurred.
- Using FMEA data from Xfmea or RCM++ in XFRACAS:
- Xfmea and RCM++ are shipped with a predefined import/export template that you can use
to export FMEA data to an Excel spreadsheet that can be
imported into XFRACAS. To do so, use the Export to Excel tool
in Xfmea/RCM++ and select the
XFRACAS option. You can then use the Data
Import Utility, Xfmea/RCM++ Failure Modes option
in XFRACAS to import the FMEA
data. Then, using the Add Lookup Issue - Failure Mode utility,
you can configure XFRACAS to allow users to classify each incident, problem
resolution report or failure analysis report with a particular segment of the FMEA
for that product. This classification makes it easier to track how many times
a
particular problem occurs in the field.
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