Part 21 Report - 1996-201
ACCESSION #: 9512040295
Information & Support Services
P.O. Box 3707
Seattle, WA 98124-2207
BOEING
November 27, 1995
G-1151-SJA-95-465
Document Control Desk
United States Nuclear Regulatory Commission
Washington, D.C. 20555
Reference: a) Boeing Letter G-1151-RSO-92-365 dated August 31, 1992;
R. S. Orr to the NRC Operations Center
b) NRC Letter Docket No. 99901227 dated August 12, 1992; L.
J. Norrholm to R. S. Orr; Subject: Response to 10 CFR 21
Inquiry
Dear Sir or Madam:
In accordance with the reference correspondence and 10 CFR 21, Boeing is
sending the NRC the attached error notice(s) received from our former
software suppliers. Because of unknown current addresses, the following
former customers were not notified:
Reactor Controls, Inc.
Echo Energy Consultants, Inc.
Nuclear Applications and Systems Analysis Company (Japan)
Nuclear Power Services
Tenera Engineering Services
Error notices have been sent to our other former customers.
Very truly yours,
Sandra J. Andrews
Nuclear Administrator
G-1151 M/S 7A-33
(206) 865-6248
Attachment(s): ANSYS Class3 Error Reports 95-56, 95-57, 95-58, 95-59 and
ANSYS QA Notice QA95-08
ANSYS [Registered Trademark]
ANSYS, Inc.
201 Johnson Road Telephone 412.746.3304
Houston, PA 15342-1300 Facsimile 412.746.9494
November 14, 1995
Dear Class3 Error Recipient:
Attached you will find ANSYS Class3 Error Reports 95-56, 95-57, 95-
58 and 95-59.
Also enclosed is ANSYS QA Notice QA95-08. QA95-08 has been issued
to alert users to a situation where incorrect loading input may not be
detected and trapped by the program.
Sincerely,
ANSYS, Inc.
Mark C. Imgrund
Vice President, Corporate Quality
ANSYS Revision Identifier Description
ANSYS revision identifiers consist of a major revision level, a
minor revision level, a correction level, and occasionally a special
version level. An example of how this is constructed is shown below:
Figure omitted.
Major revision level changes indicate that new features have been
added to the program and that some level of program architecture change
and/or file structure has occurred. Minor revision level changes also
indicate that new features have been added to the program, but files are
upwardly compatible. All known error fixes are included in both minor
and major revisions. Changes to the correction level indicate that it is
primarily an error correction release. Special version identifiers
indicate that one or more additional minor changes have been made to the
program, normally to circumvent an error. Special versions are not
general releases to all ANSYS licensees, since they typically represent
errors occurring only on one system, a subset of our customers who have
specific graphics devices, etc.
The ANSYS revision identifier(s) shown under "corrected in" on the
front side of this Class3 Error Report indicates the first possible
revision that could contain the correction. A major program change
needed to fix an error can dictate that the next minor or major revision
will contain the fix rather than the next correction level. For example,
when errors were being reported while Rev. 4.3A was the latest production
version, most Class3 error reports indicated that 4.3B was the "corrected
in" revision. Others requiring significant code restructuring were
reported as fixed in 4.4. Rev. 4.3B was never released, but Rev. 4.4
contained all error corrections noted as fixed in 4.3B.
An identifier indicated under "corrected in" does not guarantee that
a general release of that revision of ANSYS will occur. It does indicate
that the correction is known and implemented in the coding that would be
part of that general release.
Equivalent Product Identifiers
The ANSYS family of products occasionally undergoes name changes
between revisions and/or changes in the functionality of derived products
(such as ANSYS-PC/LINEAR). To minimize the potential for confusion in
these areas, the important product name equivalences (similar program
functionality and error content) are listed below.
ANSYS/ED contains all errors shown for the full ANSYS product,
starting at Rev. 5.0,
and beyond, unless
otherwise noted.
PC/LINEAR is equivalent to WS/LINEAR at Rev. 4.4A,
and ANSYS/LINEAR starting
at Rev. 5.0.
PC/THERMAL is equivalent to WS/THERMAL at Rev.
4.4A,
and ANSYS/THERMAL starting
at Rev. 5.0.
PREPPOST contains relevant errors shown for the full ANSYS product,
for included pre- and
postprocessing
functionality
ANSYS [Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 95-56
KEYWORDS: MODAL DAMPED
DESCRIPTION OF ERROR:
In a modal analysis using the damped eigensolver (MODOPT,DAMP), the
eigenfrequency results may be incorrect when modeling very stiff, massive
structures using N-kg-mm units (or lb-lbmass-in units in FPS system).
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.0 Rev. 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Use N-kg-m units instead of N-kg-mm (or use lb-lbmass-ft units
instead of lb-lbmass-in).
COMMENTS:
A typical example of a very stiff, massive structure would be a 1m
long "beam" of 1m x 1m cross-section.
AUTHOR/CORRECTOR: DATE: November 14, 1995
C. Rajakumar
REVIEWED BY QA: DATE: November 14, 1995
Mark C. Imgrund
APPROVAL: DATE: November 14, 1995
David Conover
*_/ If a product name is not included in the "first incorrect version",
the full ANSYS program is implied. For products not listed, this error
does not apply, but see the reverse side for equivalent product
designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS revision
identifiers.
FORM SASI-QA25
DEC 19, 1988
ANSYS [Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 95-57
KEYWORDS: BEAM24 ELEM24
DESCRIPTION OF ERROR:
For BEAM24 (3-D thin-walled plastic beam element), all results are
incorrect if output quantity THETAP (rotation angle from the element
y-axis to the principal y-axis) is not equal to 0.0 radians together with
either or both of the following conditions:
1. The mass matrix is being used (dynamic analyses or
accelerations).
2. The material properties are linear.
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.0 Rev. 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Reorient input of cross-sectional real constants so that THETAP =
0.0. This can be done by parameterizing the input using sine and
cosine functions.
or For case of condition 2 above, either use BEAM24 with plastic
material properties using a high yield stress, or use BEAM44.
COMMENTS:
AUTHOR/CORRECTOR: DATE: November 14, 1995
Peter Kohnke
REVIEWED BY QA: DATE: November 14, 1995
Mark C.Imgrund
APPROVAL: DATE: November 14, 1995
David Conover
*_/ If a product name is not included in the "first incorrect version",
the full ANSYS program is implied. For products not listed, this error
does not apply, but see the reverse side for equivalent product
designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS revision
identifiers.
FORM SASI-QA25
DEC 19, 1988
ANSYS [Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 95-58
KEYWORDS: GUI BEAM44 REAL CONSTANTS
DESCRIPTION OF ERROR:
The real constant dialog box in the GUI for BEAM44 may place real
constant data in the wrong location if all entries are not filled. This
could then cause calculation of results to be incorrect.
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.1 Rev. 5.3
Component Products Rev 5.2 Component Products Rev 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Specify BEAM44 real constants by typing in the command input window
using R, RMORE or RMODIF commands. If you use the dialog boxes, enter
values in all data locations. List the real constants to verify that
they are correct.
COMMENTS:
AUTHOR/CORRECTOR: DATE: November 14, 1995
Eric P. Clevenger
REVIEWED BY QA: DATE: November 14, 1995
Mark C. Imgrund
APPROVAL: DATE: November 14, 1995
David Conover
*_/ If a product name is not included in the "first incorrect version",
the full ANSYS program is implied. For products not listed, this error
does not apply, but see the reverse side for equivalent product
designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS revision
identifiers.
FORM SASI-QA25
DEC. 19, 1988
ANSYS [Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 95-59
KEYWORDS: SUBSPACE RIGID
DESCRIPTION OF ERROR:
If only translational rigid body modes are specified (RIGID command)
in a subspace modal analysis (ANTYPE,MODAL with MODOPT,SUBSP) and there
are rotational DOFs in the model (ROTX, ROTY or ROTZ), modes may be
missed.
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.0 Rev. 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Remove the RIGID specification and allow the analysis to calculate
the rigid body modes directly.
COMMENTS:
AUTHOR/CORRECTOR: DATE: November 14, 1995
John Swanson
REVIEWED BY QA: DATE: November 14, 1995
Mark C. Imgrund
APPROVAL: DATE: November 14, 1995
David Conover
*_/ If a product name is not included in the "first incorrect version",
the full ANSYS program is implied. For products not listed, this error
does not apply, but see the reverse side for equivalent product
designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS revision
identifiers.
FORM SASI-QA25
DEC 19, 1988
ANSYS QA NOTICE
NOTICE NO: QA95-08
SUBJECT: P-METHOD MIDSIDE NODES FORCES
DESCRIPTION:
Midside nodal forces (F command) are not permitted for p elements.
An error message is issued if this condition is detected. However, if
the element upon which a midside nodal force exists is excluded (PEXCLUDE
command) no error message is issued.
To avoid a potential error, perform a model check (CHECK command)
with all elements included (PINCLUDE command).
When this error is present, the resulting reaction forces will not
sum to the applied loads.
AFFECTED VERSIONS: Rev. 5.2, ANSYS/Linear Rev. 5.2
AUTHOR: DATE: November 14, 1995
Tim Pawlak
REVIEWED BY QA: DATE: November 14, 1995
Mark C. Imgrund
APPROVAL: DATE: November 14, 1995
David Conover
SASI-QA3
AUG. 29, 1993
*** END OF DOCUMENT ***
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