Technology News
PredictionProbe Released UNIPASS™
4.4
 PredictionProbe has announced
on 10/15/02 the release of UNIPASSTM
version 4.4, the newest version of its renowned probabilistic assessment
software. UNIPASS™
V4.4 is fully validated and tested software that can be operated by a
non-statistician using a desktop computer.
Combining an advanced and powerful feature set with an easy-to-use Windows
interface, UNIPASS™ is acclaimed for the precision and accuracy of its results.
It provides the largest number of probabilistic computational methods of any
product available, along with more analysis types and Most Probable Point
(MPP) identification methods. It allows the selection of over 37 statistical
distribution types for input random variables, and includes a library of over
61 functions, including
user-defined. The new version offers an advanced simulation-based MPP search method,
enhanced graphic functions and refinements to the interface with multi
external solvers without any coding, in response to
user requests.
Easy Ways to Interface with Multiple Software Systems Simultaneously
The UNIPASS™
interface modules allow simultaneous communication with multiple software
systems. While enhancing the capabilities of these software systems, UNIPASS™
minimizes the number of deterministic software runs needed to perform
Probabilistic Analysis. The existing interface options include:
This interface, without any coding, allows
simultaneous integration with one or more commercial and/or in-house software
systems with multiple input/output files
Customized Interface:
This interface allows simultaneous integration with
one or more commercial and/or in-house software systems with multiple
non-standardized input/output files
System Command Interface:
This interface provides a flexible and
robust alternative to Generic and Customized Interface to integrate with one
or more commercial and/or in-house software systems with multiple input/output
files
MSC/NASTRAN Interface: This interface
provides for performing probabilistic finite element analysis using MSC/NASTRAN
finite element code (interface with other finite element software may be
established using other interface options)
What are new in Version 4.4 Compared to Version 4.3?
The new features
provided by Version 4.4 compared with Version 4.3 are summarized below:
-
Added
discrete distributions
-
Added all
truncated distributions in the help manual.
-
Corrected the names of random variables on the horizontal axis in U-space in the
sensitivity plot for dependent variables.
-
Fixed the problem of table presentation in GUI HTML output file for the case of
random variables’ name with upper case characters.
-
Removed the bugs for the uniform distribution input method 5 and 6.
-
Modified UNIPASS GUI for correct hyperlink in the output HTML file.
-
Removed the bug of suddenly drop to zero in the PDF/CDF plots for the
Monte Carlo
simulation method.
-
Improved the stability in the PDF/CDF plots for the case when two MPPs are very
close.
-
Improved the accuracy for the Nataf model with high correlation coefficients.
-
Changed the default background color of plots such that they are clearer for the
black/white printers.
-
Solved the numerical difficulty in the probability transformation between X and
U spaces for the case of  in Beta distribution.
-
Removed the hyperlink error in the HTML file for 1st order series
system sensitivity analysis.
-
Removed the bug for the option of long print out in U-Space X-Linearized MPPL
Method.
-
Modified UNIPASS to print an error message if no EXTERNAL.IN is created before running UNIPASS with
generic external interface option.
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