July 16, 2004
Fatigue Analysis – Occasional loads, including
wind, static equivalent static loading, response spectrum,
and time history dynamic loading have been incorporated
into TRIFLEX®Windows fatigue analysis functionality.
Transparent Component Graphics – Pipes, Anchors,
Elbows, Joints, and Reducers may be displayed in a user-defined
shade of transparency in order to observe any detail they
may be obscuring should they be drawn opaque. This is especially
useful in designing jacketed piping, vessels with multiple
nozzles, and other complex shapes.
Jacketed Piping Core Support – An option
has been added to the Release Element component dialog that
will allow the release element to model a spider support
in jacketed piping. In order for the type to be selected,
the from and to nodes of the release element must specify
the coincident ends of two previously defined components
from which inside diameter and outside diameter of the piping
can be obtained. If this type of release element is selected,
an axially free, transversely rigid release element is drawn
from the outside diameter of the inner pipe to the inside
diameter of the outside pipe.
Adjustable Axis Initial Location – An option
has been added to the Axis Properties Dialog callable from
the Main Menu/Setup/Graphic Preferences Menu/Axis Properties
menu item which allows the adjustable axis to be initially
positioned when toggled on at the Global Origin (0,0,0),
at the piping system geometric center, or at the last position
the axis was in before it was toggled off.
Abbreviated Code Compliance Report – The
Main Menu/Output menu has been modified by adding an additional
option that displays the Code Compliance report only for
selected components. Should no components be selected when
the menu is brought down, or no code compliance output be
available, the control is grayed out and is not accessible.
Data Point Order Column Added to Code Compliance Report
– An extra column has been added to Code
Compliance Report spreadsheets indicating the order of the
data points. Should various columns be sorted in order to
examine the data, this column can be used to return the
spreadsheet to its original order. Previously, once a column
had been sorted, there was no means returning to the original
order other than refreshing the report.
Fatigue Component Name Category in Input Parameter Graphics
– The name of the fatigue curve associated
with a particular component is now shown graphically in
the Input Parameter Graphics, Code Compliance Group, for
the B31.1, B31.3, B31.4, B31.5, and B31.8 piping codes when
Fatigue Analysis is selected in the Model Defaults Dialog.
Spring Hanger Attachment Movement – The restraint
dialog has been modified to allow the entry of a movement
of the spring attachment point along the axis of an existing
spring hanger or support.
Anchor Skew Stiffness and Initial Movement –
The ability to input anchor stiffness along directions other
than the global X, Y, and Z coordinates has been added.
Also initial movements may be specified along any set of
coordinates, however, in order to do so, the anchor must
be rigid in each of X, Y, and Z.
Dialog Specifying Longitudinal Direction –
Since anchors and release elements are essentially single
points with no inherent directional property, a dialog was
added to aid in the specification of axial coordinates for
use in defining an L-N-G axis system. The axial coordiate
can be the default direction of the component used in its
graphical representation, the direction between any of the
nodes defined in the system, or any arbitrary vector.
Worksheet Comments Column – The Comments
Column on the input spreadsheet has been activated, allowing
the user to insert and save text comments, descriptions,
or labels for each component.
Conflict with Pipe Component Copy Feature and Undo –
When the Pipe Component Copy feature was used and then,
later, an Undo command was issued to reverse the procedure,
the automatic node numbering algorithm would fail to synchronize,
issuing spurious warning messages or, perhaps, causing a
program crash. This issue has been addressed with this release.
Release Element Error Checking – No longer
does the release element check for valid A, B, and C direction
angles if the “Use X, Y, Z Coordinates” radio
button is selected. This solves a problem that may appear
when reading data files created by earlier versions into
Current Component Indicator – When adding
components from the spreadsheet the current component indicator
would fail to reset such that not only was the original
current component indicated, but the newly added component
as well. This false indicator has been fixed, such that
the current component is set to the new component as intended.
Data Serialization in Version 2.5.1 – Due
to a data serialization error with regard to fatigue curve
definitions, occasionally input files created in previous
versions and saved using Version 2.5.1 become unreadable.
This current version corrects that problem and renders any
files saved erroneously in version 2.5.1 readable.
Reducer Length Defaults – Reducer lengths
now properly default to the value for standard butt weld
reducers attached to the larger of the two connecting pipe
diameters if ANSI pipe is used. Should non-standard or user
defined pipe be used, and for diameters less than ¾
inch nominal, the reducer length defaults to the diameter
of the larger pipe. This value should be reviewed by the
user and modified on the reducer dialog as necessary.
Response Spectrum and Time History Availability –
Under some circumstances the buttons on the main toolbar
for Response Spectrum and Time History Analyses could remain
active, even though the load case in which they were specified
was no longer available. This could lead to a false indication
in the dropdown load case selection menu along with possibly
confusing output. This situation has been addressed and
Soil Loading Dialog – The Soil Load Dialog
has been modified somewhat to clear up some confusion in
the way in which it was used. The load coefficient field
previously did not change if either data was not sufficient
for its calculation or if the pipe was buried less than
three diameters deep where the load coefficient was not
needed or used in calculating the vertical load on the pipe.
Now, if insufficient data is available, the field is set
to blank. If there is sufficient data, but the value is
unnecessary, it is set to “N/A”, not applicable.
Further, the values for vertical load and stiffness are
reset automatically if the user updates the pipe diameter
or insulation thickness on the Pipe Properties dialog.
Reverse Ripple – When rippling various piping
system parameters using the “Ripple to Component”
setting and when the specified component number was less
than the current component number (hence, a reverse ripple),
the rippling would stop two components short of the selected
component number. This error has been corrected.
Special Report Data Lists – The data lists
indicating data for special report generation such as the
Flange, API610, API617, NEMA, Rotating Equipment, as well
as the node loading information within Time History, could
become corrupted if components containing the defining nodes
for the information were deleted. Occasionally, this could
lead to a program malfunction, especially during the renumbering
operation. Now, if a node defining a parameter for an item
in one of these lists is removed through component deletion,
the item is removed from the list.
B31.3 Code Compliance Dialog – The code compliance
dialog for B31.3 as implemented in version 2.5.1 would list
the default fatigue curves twice. This problem has been
rectified such that now the B31.3 dialog is handled in the
same manner as the other ASME B31.x dialogs.