Transcript asent_basics

Basics
Last revised 08/10/2005
ASENT_BASICS.PPT
ASENT Toolkit Makeup
The ASENT toolkit is comprised of a large number or programs (editors, translators, utilities and reports) which are
organized under 6 main 'Manager' tools. This makes it easier for the user to navigate and select the tools appropriate for
the task at hand, as well as providing a seamless transition between the various programs.
Session Manager –
Library Managers
Add,Edit,Delete Projects,
Assign users to projects,
Archive & Restore
projects and libraries.
Invoke LSAR Interface
and other Manager tools.
Analysis Managers
Component Data Manager –
Create and Edit parts, materials,
packages, PWBs, Hybrids and
defaults. Import parts from Excel
Maintainability Data
Manager – Create and Edit
tasks, toolkits and tools. View
pictures of task definitions.
Reliability Manager –
FMECA Manager – Construct
Calculate failure rates, RBD
analysis, import part lists and
board data, Interfaces to PRISM,
RAPTOR, CAE, SLATE and
Doors. Perform Spares Modeling.
Perform Thermal Analysis, &
board layout.
product tree, perform FMEA,
FMECA, RCM, Testability, False
Alarm Rate analysis. Interface to
Logan FTA and Giordano
Diagnostician tools. Create, Edit,
Delete Function/Phases.
Maintainability Manager –
Construct product tree, perform
preventive and corrective repair
time analysis, availability metrics,
identify tools and tasks required.
ASENT_BASICS.PPT
Invoking ASENT
OR
If you have an
ASENT icon on
your Window’s
Desktop, doubleclick on the icon,
otherwise select
Start|Programs|
Asent and invoke
it from the
ASENT program
group.
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The ASENT Session Manager
The Session Manager is
the first screen the user
sees when they invoke
the ASENT toolkit.
Here, the user is
presented with a list of
projects on the server.
New projects can be
created. Existing
projects can be copied,
renamed, deleted,
archived or restored.
Also, a powerful wildcard search capability
allows the user to search
for information on other
projects and re-use it.
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The ASENT Session Manager
ASENT screens
typically have an
explorer view on the left
side. In the Session
Manager the explorer
view displays a list of
projects. The right side
of the screen displays
information that
corresponds with the
selected project. The
data tabs allow you to
see other data associated
with the selected project.
For example, to assign
other users access to edit
your project, you would
select the Assign Users
tab.
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Typical Screen Layout
Explorer View
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Definition of terms
Below are definitions of terms used to describe different portions
of the screen shown on the prior page.
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Button descriptions
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Right-click and a pull-down menu appears
ASENT’s Session
Manager allows
you to invoke other
tools. Whenever
you right-click the
mouse on the
explorer view of
the screen, a pulldown menu will
appear for the
selected item.
Here, a menu
appears that allows
us to invoke other
ASENT tools.
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Use wild-card search capability
Here, the user
quickly searches all
projects on the
server, and finds
those that have a
modem in their
product tree
structure. To invoke
the search function
merely click on the
Search menu option
or the
toolbar
icon.
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Results of wild-card search
The results of the
wild-card search
shows that a
modem exists on
the computer
project.
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Invoking the Reliability Manager
To invoke the
Reliability
Manager merely
right-click on a
project and select
the Reliability
Manager menu
option.
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Reliability Mgr. Displays product tree
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Importing data from other projects
The Import
Subtree option
makes
importing data
from other
projects easy. In
the slides that
follow we will
import a
MODEM card
from the
Computer
project to the
Chassis of
DEMO_PRJ.
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User selects the computer project to import from
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Product tree for the computer project
Caution:
Initially, only the project
node will be displayed. Do not doubleclick on the project node to expand
the tree, instead, select the ‘+’ symbol.
If you double-click on the project
node it will import the entire product
tree.
Here, the user is
presented with the
product tree structure of
the Computer project.
The user navigates down
to, and selects the
MODEM card, and
clicks on the OK button.
This will import the
MODEM card from the
Computer project to the
chassis of DEMO_PRJ.
Click on the ‘+’, ‘-’
symbols to expand or
collapse portions of the
tree.
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Modem is imported to the chassis
After the import,
the MODEM card
now appears in the
chassis of
DEMO_PRJ.
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Calculate failure rates for entire system
Failure rates can be
calculated at any
level (part, board,
assembly, or the
entire system). The
following failure
rate prediction
methods are
included: 217F,
217F-1, 217F-2,
Bellcore TR-332
Issue 6, Telcordia,
and the RAC
Commercial
Practices NonOp
FR method.
ASENT_BASICS.PPT
Calculate failure rates for entire system
At the system level,
the user specifies
the prediction
method,
environment, and
operating
temperature to be
used in performing
the failure rate
prediction.
Caution:
By default, lower level assemblies and boards will inherit the FR Method,
Environment and Temperature of their parent.
These
values should
NOT be entered
for lower level
assemblies or
boards unless
they are different
than the system
values.
ASENT_BASICS.PPT
Calculating failure rates
Select the type of failure rates to
calculate (Operating or NonOperating) and click on the
Calculate button. ASENT will
then use the FR Method that you
have chosen (i.e. If 217FN2 was
selected for Operating failure
rates, then ASENT will use MILHDBK-217F, Notice 2).
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Status flags alert user of a problem
Status Flags
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Failure Rate calculation status flags
The table below describes the meaning of the status flags that
appear in the product tree after calculating failure rates.
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Status flags pinpoint overstressed C0001
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Run troubleshooting on C0001
Below, the troubleshooting option is turned on and the failure
rate for C0001 is re-calculated.
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Troubleshooting shows voltage overstress
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Correct applied voltage for C0001
Enter a new
applied voltage
value for
C0001. Notice
that the user can
enter either a
value for the
applied voltage,
or a percent of
the rated voltage
for the part.
Here, the user
sets the applied
voltage to 50%
of the rated
voltage for the
part.
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Re-calculated failure rates are OK now
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Report Generation
Reports can be
generated from any
level in the product tree
structure. Right-click
on an item and select
the Reports option. The
Op Tree FR report is a
very common reliability
prediction report. It
generates an indentured
tree structure for the
operating failure rate of
the item.
The report can be
sorted by either failure
rate or reference
designator. It can
include both assemblies
and parts or just
assemblies only.
ASENT_BASICS.PPT