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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