June 4, 2004
1. Fatigue Analysis – The ability
perform a Fatigue Analysis has been incorporated into this
version of TRIFLEX®Windows. This currently applies
to piping systems designed using B31.1, B31.3, B31.4, B31.5,
and B31.8 piping codes, using both internally stored and/or
user defined design fatigue curves.
2. Pressure Contribution – Whether
pressure displacement stress is to be included as a primary
stress along with weight, or a secondary stress along with
thermal effects, is now an option selectable by the user
in the Setup/Modeling Defaults dialog. The default is for
it to be included along with weight as in past versions
of TRIFLEX®Windows; however, should fatigue analysis
be selected, the effect of pressure stress defaults to being
included with thermal effects for a more realistic calculation
of the alternating stress intensity.
3. Code Compliance Spreadsheet Link to Component
Input Dialogs – A link has been incorporated
between the Code Compliance Spreadsheet and the Component
Input Dialogs. By double clicking on a row in the spreadsheet,
the component dialog for the component containing the data
point on that row is brought up for examination. Any changes
made to the dialog invalidates the underlying code compliance
report, so care should be excercised.
1. Spreadsheet Import Scrolling –
The Spreadsheet Import dialog has been modified such that
it has modified vertical scroll bars consistent with other
spreadsheets in TRIFLEX®Windows. Also the number of
components able to be brought into TRIFLEX®Windows
via an imported spreadsheet has been increased from 1000
2. Short Joint Depiction – The graphical
representation of Rigid Joint components less than 1/10
the representative OD are now shown as cylinders rather
square bars. This more accurately portrays the major use
of such joints as welds and gaskets.
3. PCF File Import – Previously,
some PCF files failed to come into TRIFLEX®Windows
correctly when using the Windows XP operating system, generating
a failure to read error in the importing program. This problem
has been solved such that the import procedure is no longer
sensitive to operating system differences.
4. Minimum Temperature Calculation in B31.3
– When specifying ANSI pipe with nominal diameters
in inches along with metric pipe lengths, the minimum allowable
temperature for some materials was falsely reported. These
materials are those, which according to B31.3, have a minimum
non-qualified usable temperature based on the material thickness.
This material thickness was incorrectly converted with respect
to the mixed units and, therefore, resulted in an invalid
usable temperature range. This problem has been corrected.
5. Mixed Unit Insulation Thickness –
If pipe diameters were given in inches along with metric
pipe lengths, version 2.5.0 of TRIFLEX®Windows erroneously
passed insulation thickness in inches to the calculator.
This value was interpreted by the calculator as a metric
dimension and treated accordingly, with the obvious problems
in calculating buoyant forces. This parameter is now correctly
passed with its proper metric numerical value.
6. Renumbering with Special Reports –
A problem was located in the automatic node updating of
the Flange, API610, API617, NEMA, Rotating Equipment, and
Time History data when the piping system was renumbered
and one or more of the components selected for the renumbering
operation was an Anchor. This problem has been addressed
and TRIFLEX®Windows now functions properly in this
regard. Care should be exercised whenever MANUAL renumbering
of nodes occurs, however. If the user MANUALLY renumbers
a node, any of the above reports that are requested, containing
that node number, must also be updated MANUALLY.
7. Flange Limit Increased – Previously
the limit on the number of flanges included in the Flange
Loading Report was limited to 100. This limit has been increased
tenfold to 1000. Also, the physical limitations on the size
of the view in which Flange Loading was displayed has been
removed, sizing the view based on the number of lines to
be written, rather than assigning an arbitrary maximum size.
8. Copy, Paste, and Delete – Some
stability problems were encountered in previous versions.
When attempting to Copy, Paste, or Delete components under
some circumstances the program could loose orientation and
fail. This problem has been resolved.
9. Sorting on Spreadsheet Columns –
The speed of sorting of the output spreadsheet and piping
code report spreadsheet data by double-clicking on the column
headers has been significantly improved, and is especially
noticeable in spreadsheets with a large number of rows.
Also sorting has been modified such that blank rows are
always displayed at the end of the sort rather than interpreting
the blank as a zero and placing the row where a zero would
fall in numerical order.
10. Code Compliance Spreadsheet Display
– The efficiency of the processing of the code compliance
data has been improved, dramatically reducing the time to
display or refresh the code compliance spreadsheet for large
11. MAXSP and NIDP Keywords – The
TRIFLEX®Windows keywords for maximum spacing between
intermediate nodes and for the number of intermediate nodes
may not both be specified on a single component. If the
user attempts to do so, a warning message will now appear,
indicating the situation and requesting that one or the
other be chosen. Note that this does not interfere with
the function of the DIASP (Maximum Spacing with respect
to Diameter) keyword set on the Model Definition Dialog.
Any setting pertaining to intermediate node spacing specified
on the component dialog overrides this directive so no conflict
12. Modification of Input Unit System
– The input unit system for defining new piping systems
cannot now be modified following the definition of the first
component of the system. Further, the set of input units
is fixed for all existing systems. This will prevent possible
misinterpretations of data that could occur previously when
the unit system could be changed, but the underlying numerical
values associated with piping system and component properties
remained constant. The unit system now MUST be defined before
entering the first component of the piping system.
13. Reducer Error Checking – The
error checking algorithm used in determining whether or
not a defined reducer was a valid component has been modified
such that a frustrating loop does not occur should the small
end diameter be set to zero and the user tries to correct
14. Movements with Mixed Unit Systems
– There was an error in the display of movement dimension
labels when recalling a saved system in which ANSI pipe
sizes were used with metric unit systems. Although all calculations
and the output were correct, the input dialogs would display
inch units along side a field whose numerical value was
internally interpreted by the program as being in millimeters
for SI or IU1 units and centimeters for MKS units. This
discrepancy has been corrected.
15. NEMA / API Report Numerical Output
– When large forces and moments were encountered in
NEMA or API rotating equipment reports, the value of the
number could occasionally be too large to fit in the space
allocated in the report format. This would cause the report
to be totally blank, and hence, not very useful. Now, should
these exceedingly large values be present, the report prints
them, in an attempt to help the user identify and correct
the underlying design problem.