ML17318A507
| ML17318A507 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 12/18/1979 |
| From: | Dolan J INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17318A508 | List: |
| References | |
| AEP:NRC:00001A, AEP:NRC:1A, NUDOCS 7912200509 | |
| Download: ML17318A507 (120) | |
Text
DYNAMIC EVALUATION TEST PROGRAM ON A SAFETY INJECTION SYSTEM PANEL, AN AUXILIARYRELAY PANELS AND A HOT SHUTDOWN PANEL
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SEISMIC SIMULATION Test Report REPORT NO.
44560 1
WYLE JOB NO.
0 CUSTOMER p2p64 25p 9N Ref p6 P. 0. NO.
r l,o
,'jl PAGE 1 OF November 19, 1979 SPECIFICATION (S) in Section 7.0 PAGE REPORT y p CUSTOMER American Electric Power Service Co oration ADDRESS Two Broadway, New York, New York 10004 2 p TEST SPECIMEN A Safety injection System Panel, an Auxiliary Relay Panel, and a Hot Shutdown Panel 3.0 MANUFACTURER 4.0
SUMMARY
Harlo Corporation A Safety Xnjection System Panel, an Auxiliary Relay Panel, and a Hot Shutdown
- Panel, described in Paragraph 5.1r hereinafter called the specimens, were subjected to a dynamic evaluation test as required by the American Electric Power Service Corporatior (AEPSC) Purchase Order Number 02064-250-9N, Ref. 06, and Wyle Laboratories'est Plan 541/1735-1/DK, dated April 21, 1979, Revision C.
The dynamic characteristics were determined by providing a force input to the specimens with a small exciter specifically designed for modal-type testing.
The testing was performed at the Donald C. Cook Nuclear Power Plant, Unit No. 2, located in Bridgman, IyIichigan.
The specimens were tested in their actual in-service configurations over the period of October 31, 1979, through November 4, 1979.
STATE OF ALABAMA COUNTY OF MADISON Ala. Professional Eng.
Reg.
No. 6363 wyte shall htho no aataaty fordamages ot any kind to person or property. <nettxang spacistor oonseqoential damages. restrt rfom wyte s prodding triosenieos coreredby this repork PREPARED BY James W. Foreman
~ being duly sworn, deposes and says: The information contained in this report is the result ol complete and carefull c
n ucte tests andisto the best o hisknowledgetrueandcorrectin all resp AP VED BY WYLEQ.A.
ell SUBSC BED sworn to before me this day of
,19 Notary P blic ln and for the State of Alabam at large.
My Commission expires SCIENTIFIC SERVICES AND SYSTEMS GROUP HUNTSVILLE,ALABAMA
PAGE NO.
REPORT NO.
WYLE LAIBGRAlQRIKS SCIENTlRC SERVICES ANO SYSTEMS GROUP 4.0
SUMMARY
(Continued)
Figures 1,
2 and 3 show the node points, excitation points, and accelerometer locations.
r Photograph 1 shows the typical test setup.
Photographs 2 through 4 show the accelerometer; locations for a typical test.
Appendix I contains the Inertance Plots fromithe resonance searches.
Appendix II contains the mode shape data, mode shapes, and damping decay plots.
Appendix III contains the Instrumentation Log Sheets and the Instru-mentation Equipment. List,.
Appendix IV contains Nyle Laboratories'est>'Plan 541/1735-1/DK, dated April 21, 1979, Revision C.
Vl/YlE LAJBCRNQ$5ES SMHTIRC SEAVICES ANO SYSTEMS GROUP PAGE NO.
REPORT NO.
44560-1 5.0 5.1 TEST REQUIREMENTS Specimen Descri tion and Mounting The following specimens shall be subjected to a dynamic evaluation test:
Specimen No.
Description Approximate Size L
x W
x H
Safety Injection System Panel Auxiliary Relay Panel Hot Shutdown Panel 138" x 96" x 96" 122" x 24" x 96" 144" x 72" x 96" 5.2 The specimens shall be mounted in their actual in-service configurations.
Excitation A force input shall be provided by a small, lightweight, armature exciter specifically designed for modal-type testing.
A force trans-ducer shall be used at the attachment point to measure force input.
The force input shall be applied to the specimens in each of the two (2) horizontal axes.
The force input shall be applied at two (2) locations as follows:
Floor-mounted cabinets The force input shall be applied near the top of the cabinet and also approximately 24" from the floor.
Floor-and ceiling-mounted cabinets - The force input shall be applied approximately 60" from the floor and also approxi-mately 24" from the floor.
5.3 Resonance Search A sine sweep from approximately 1 Hz to 35 Hz using approximately 5
pounds force input shall be performed to identify major resonances for each test configuration.
The sweep rate shall be no greater than one octave per minute.
Inertance (g/lb input) plots from the resonance search tests shall be provided.
In addition to the sweeps, resonant frequencies shall be verified by observing force and accelerometer output Lissajous figures on an oscilloscope.
The frequencies where force and acceleration are 90 degrees out-of-phase, indicating a resonant condition, shall be recorded in the test log.
PAGE NQ.
REPQRT NQ.
44560 1
SAQX UNOHAlZRIES SCIEIITIRC SERVICES ANO SYSTEMS GROUP 5.0 5.4 TEST REQU1REMENTS (Continued Mode Sha es and Dam in For each test configuration, mode shapes and damping values shall be determined at the primary resonant frequencies.
Mode shapes shall be determined by tuning in the resonant frequency and using accelerometer probing methods at predetermined locations to describe the relative motion.
The mapping shall be performed using two (2) accelerometers (one biaxial).
Phase shall be determined from an oscilloscope Lissajous display.
Damping values shall be calculated from oscillograph decay recordings of accelerometer signals taken by quickly turning off the exciter while exciting the unit at the resonant frequency.
A decay curve shall be developed from the oscillograph recordings and the damping shall be determined by the following formula:
X C/C
= log c
2nn e Xn where C/C
=
Damping c
X0 Number of Cycles Amplitude of Cycle "o" Xn Amplitude of Cycle "n" Additionally, the bandwidth method shall be used to determine the specimen damping.
5.5 Instrumentation 5.5.1 Excitation Control Exciter force input shall be measured and controlled by a force trans-ducer at the exciter attachment to the specimens.
IVY'ABQRAlZ%5ES-SCIENTIFIC SERVICES AND SYSTEMS GROUP PAGE NO REPORT NO 44560-1 5.0 5.5.2 TEST REQUIREMENTS (Continued)
S ecimen Res onse Six (6) response accelerometers (three biaxial locations) shall be located on each specimen under test.
The biaxial locations shall be (1) the driving point, (2) the center of the cabinet face, and (3) approximately 18" from the floor.
Frequency response test accelerometer and force data shall be recorded on FM tape.
Inertance plots from the resonance search tests shall be presented in the test report.
PAGE NO.
REPORT NO.
WVLE lAlBCRA'1KNRIEB SCIENlPIC SERVICES AND SYSTEMS GROUP 6.0 6.1 TEST PROCEDURES AND RESULTS S ecimen Mountin 6.2 The specimens were mounted in their actual in-service configurations.
Excitation 6.2.1 A force input was provided by a small, lightweight, armature exciter specifically designed for modal-type testing.
A force transducer was used at the attachment point to measure force input.
The force input was applied to the specimens in each of the two (2) horizontal axes.
The force input was applied at two (2) locations as follows:
Floor-mounted cabinets (Specimens 2 and 3)
The force input was applied near the top of the cabinet and also approximately 24" from the floor.
Floor-and ceiling-mounted cabinets (Specimen 1)
The force input was applied approximately 60" from the floor and also approximately 24" from the floor.
The excitation points are shown in Figures 1,
2 and 3.
6.3 Resonance Search Procedures A sine sweep from approximately 1 Hz to 35 Hz using approximately 5
pounds force input was performed to identify major resonances for each test configuration.
The sweep rate was one octave per minute.
Zn addition to the sweeps, resonant frequencies were verified by observing force and accelerometer output Lissajous figures on an oscilloscope.
The frequencies where force and acceleration were 90 degrees out-of-phase, indicating a resonant condition, were recorded in the test log.
6.3.1 Resonance Search Results Xnertance (acceleration divided by force versus frequency) plots are contained in Appendix Z.
No resonant frequencies were found below 35 Hz during the testing of the Safety Enjection System Panel (Specimen
- 1).
NY)LE LABOI&lZSIES SCIEHTIPIC SERVICES AND SYSTEMS GROUP PAGE NO.
REPORT NO.
6.0 6.3.1 TEST PROCEDURES AND RESULTS (Continued)
Resonance Search Results (Continued)
Resonant frequencies found during the testing of the Auxiliary Relay Panel (Specimen
- 2) and the Hot Shutdown Panel (Specimen
- 3) were:
~secimen Axa.s Fre uenc (Hz)
Front-to-Back 11.2, 18.2, 33.3 Side-to-Side None below 33 Hz Front-to-Backs 16.1, 22.9, 24.4 Side-to-Side 22.3 6.4 Mode Sha e and Dam in Procedures For each test configuration, mode shapes and damping values were determined at the primary resonant frequencies.
Mode shapes were determined by tuning in the resonant frequency and using accelerometer probing methods at predetermined locations to describe the relative motion.
The mapping was performed using two (2) accelerometers (one biaxial).
Phase was determined from an oscilloscope Lissajous display.
Damping values were calculated from oscillograph decay recordings of accelerometer signals taken by quickly turning off the exciter while exciting the unit at the resonant frequency.
A decay curve was developed from the oscillograph recordings and the damping was determined by the following formula:
PAGE NO.
REPORT NO.
VAflLE ULBQRA1ZNIES SCIEHTIRC SERVICES AND SYSTEMS GROUP 6.0 6.4 TEST PROCEDURES AND RESULTS (Continued)
Mode Sha e and Dam in Procedures (Continued)
X C/C
=
log c
2mn e Xn where C/C
=
Damping c
n
=
Number of Cycles X
=
Amplitude of Cycle "o" 0
X
=
Amplitude of Cycle "n" n
Additionally, the bandwidth method was used to determine the specimen damping using the following formula:
f - f Damping Factor
=
2 1
2 fn where:
f and f are frequencies at. which Q=Qo and Q
=
Resonant Magnification Factor at f 0
n f
=
Resonant Frequency.
n
1M'ABQRAKNIES SCIENTIRC SERVICES AND SYSTEMS GROUP PAGE NQ.
REPQRT NQ.
44560"1 6.0 6.4.1 TEST PROCEDURES AND RESULTS (Continued)
Mode Sha e and Dam in Results Appendix II contains the mode shape data, mode shapes and damping decay curves for Specimens 2 and 3.
The damping values for Specimens 2 and 3, as determined from the damping decay curves and bandwidth method, are:
Specimen No.
Frequency (Hz)
~Za Deca Bandwidth Dam in (0 critical)
F-B F-B F-B F-B F-B S-S 11.2 18.2 33.3 16.1 22.9 24.4 22.3 1.9 4.7 3.2 3.2 3.0 3.3 3.3 2.6 6.5 4 '
3.8 3.8 3.2 5.6 6.5 Instrumentation Procedures 6.5.1 Excitation Control Procedures Exciter force input was measured and controlled by a force transducer at the exciter attachment to the specimens.
6.5.2 S ecimen Res onse Procedures Six (6) response accelerometers (three biaxial locations) were located on each specimen under test.
The baxial locations were (1) the driving
- point, (2) the center of the cabinet face, and
('3) approximately 18" from the floor.
Accelerometer locations are shown in Figures 1,
2 and 3.
Frequency response test acceleroemter.
and force data were recorded on FM tape.
6.5.2.1 S ecimen Res nse Results Appendix I contains the Inertance Plots obtained from the. specimen response accelerometers.
PAGE NO.
REPORT NO.
%IRK. LABORAllQRIEB SClEHTlRC SERVICES ANO SYSTEMS GROUP 7.0 7.1 American Electric Power Service: Corporation Purchase Order Number 02064-250-9N, Ref. 06.
7.2 ale Laboratories'est Plan 541/1735-1/DK, dated April 21,
- 1979, Revision C.
Page No.
11 Report No. 44560-1 2 lo 28 28~ 3'3" 3o I
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SAFETY INJECTION SYSTEM PANEL-NODE POINTS, EXCITATION POINTS AND ACCELEROMETER LOCATIONS
Page No.
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AUXILIARYRELAY PANEL - NODE POINTS, EXCITATION POINTS AND ACCELEROMETER LOCATIONS
Page No.
Report No 44560 1
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HOT SHUTDOWN PANEL NODE POINTS'XCITATION POINTS AND ACCELEROMETER LOCATIONS
Page No.
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Page No.
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PHOTOGRAPH 2
AUXILIARYRELAY PANEL ACCELEROMETER LOCATIONS 1 FRONT-TO-BACK 2 SIDE-TO-SIDE
Page No.
16 Report No. 44560-1
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Page No.
18 Report No. 44560-1 This page intentionally left blank.
lhlYLE UKORAlMtES SQEHTI8C SEAVICES AND SYSTEhlS OAOUP PAGE NO.
19 REPORT NO.
APPENDIX I INERTANCE PLOTS RUN NO.
SPECIMEN AXIS DRIVE POINT 10 15 17 Safety Injection System Panel Safety Injection System Panel Safety Injection System Panel Auxiliary Relay Panel Auxiliary Relay Panel Auxiliary Relay Panel Hot Shutdown Panel Hot Shutdown Panel Hot Shutdown Panel Front-to-Back Front-to-Back Side-to-Side Front-to-Back Front-to-Back Side-to-Side Front-to-Back Front-to-Back Side-to-Side
Page No.
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Page No.
74 Report No. 44560-1 This page intentionally left blank.
WYLE LABGRATQRES SCIEIITIPIC SERVICES ANO SYSTEMS GROUP PAGE NO.
75 REPORT NO.
44560-APPENDXX ZI MODE SHAPE DATA, MODE SHAPES AND DAMPlNG DECAY CURVES
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83 Report No. 44560-1 MODE SHAPE AUXILIARYRELAY PANEL FRONT-TO-BACK AXIS 11.1 Hz
Page No.
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Page No. 87 Report No. 44S60-1 MODE SHAPE HOT SHUTDOWN PANEL FRONT-TO-BACK AXlS 22.9 Hz 5+
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Page No.
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REPORT NO.
97 APPENDIX III INSTRUMENTATION LOG SHEETS AND INSTRUMENTATION EQUIPMENT SHEETS
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CUSTOMER DATE TIME
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PAGE NO.
109 lhNlE LAIBGRATUREB SCIEHTIEIC SERVICES AHD SYSTEMS GROUP REPORT NO.
44560 1
APPENDIX ZV TEST PLAN
Page No.
110 Report, No. 44560-1 SCIENTIFIC SERVICES ANO SYSTEMS GROUP P. O. BOX 1008 ~ HUNTSVILLE,ALABAMA35807 TWX (810) 725.2225 ~ TELEPHONE 12051 807~11 TEST PROCEDURE 541/1735-1/DK TEST PROCEDURE NO.
DATEJ April 21, 1979 Revision C
BASIC TEST PLAN FOR IN-SITU VIBRATION TESTING OF VARIOUS CONTROL PANELS FOR THE DETERMINATION OF SYSTEM NATURAL FREQUENCIES FOR INDIANA AND MICHIGAN POWER COMPANY FOR THE DONALD C.
COOK NUCLEAR POWER PLANT, UNIT NO.
2 APPROVED BY:
FOR:
'PPROVED BY:
FOR:
APPROVED BY:
FOR:
APPROVED BY PROJECT MANAGER:
APPROVED BY QUALITYENGINEER:
PREPARED BY PROJECT ENGINEER:
REVISIONS FORM 1054-1 Rev. 4/74 REV. NO.
DATE B-B-79 All PAGES AFFECTED BY GF APP'L.
DESCRIPTION OF CHAJJGES Revised entire test lan er B-30-79 3
C 10-12-79 All BGF Customer request.
Para.
3.3 Added ".
. in the three coordinate directions."
Revised entire test plan per Customer request.
COPYRIGHT BY WYLE I.ABORATORIES. THE RIGHT TO REPRODUCE, COPY, EXHIBIT, OR OTHERWISE UTILIZE ANY OF THE MATERIAL COJJTAINEO HEREIN WITHOUT THE EXPRESS PRIOR PERMISSION OF WYLE LABORATORIES IS PROHIBITED. THE ACCEPTANCE OF A PURCHASE ORDER IN COIJNECTION WITH THE MATERIAL CONTAINED HEREIN SHALL BE EQUIVALENT TO EXPRESS PRIOR PERMISSION.
Page No.
111 Report No. 44560-1 S
541/1735-1/DK TEST PROCEDURE NO.
WYLE LASCRATQRES SCIENTIFIC SERVICES ANO SYSTEMS GROUP PAGE NO.
Revision C
1.0 SCOPE In-situ vibration testing of control panels containing electromechanical equipment for the purpose of determining the natural frequencies within the frequency range of 1 to 35 Hz shall be the scope of this test.
A total of three (3) Panels shall be tested.
The Panels are located at the Donald C. Cook Nuclear Power Plant, Unit No. 2, Bridgman, Michigan.
2.0 SPECIMEN MOUNTING The specimens, consisting of a Safety Injection System, a Hot Shutdown Panel and an Auxiliary Relay Panel, shall be mounted in their actual in-use configurations.
3.0 3.1 EXCITATION Force In ut A force input shall be provided by a small, lightweight, armature exciter specifically designed for modal-type testing.
A force trans-ducer shall be used at the attachment point to measure force input.
The force input shall be applied to the specimens in each of the two (2) horizontal axes to excite the specimens.
A typical test setup is shown in Figure l.
The force input shall be applied at two (2) locations as follows:
Floor-mounted cabinets - The force input shall be applied near the top of the cabinet and also approximately 24" from the floor.
Floor-and ceiling-mounted cabinets - The force input shall be applied approximately 60" from the floor and also approxi-mately 24" from the floor.
3.2 Resonance Search A sine sweI 5 from approximately 1 Hz to 35 Hz using approximately 5
pounds force input shall be performed to identify major resonances for each test configuration.
The sweep rate shall be no greater than one octave per minute.
Inertance (g/lb input) plots from the resonance search tests shall be provided.
A typical inertance plot is shown in Figure 2.
In addition to the sweeps, resonant frequencies shall be verified by observing force and accelerometer output Lissajous figures on an oscilloscope.
The frequencies where force, and acceleration are 90 degrees out-of-phase, indicating a resonant condition, shall be recorded in the test log.
Form I054.2 Rev. 4/74
Page No.
112 Report No. 44560-1 QNLK LAKKNNMfES.
SCIENTIFIC SERVICES ANO SYSTEMS GROUP l
541/1755-1/DK TEST PROCEDURE NO.
PAGE NO.
Revision C
3.3 Mode Sha es and Dam in For each test configuration, mode shapes and damping values shall be
determined at the primary resonant frequencies.
Mode shapes shall be determined by tuning in the resonant frequency and using accelerometer probing methods at predetermined locations to describe the relative motion.
The mapping shall be performed using two (2) accelerometers (one biaxial).
Phase shall be determined from an oscilloscope Lissajous display.
A typical mode shape: is shown in Figure 3.
Damping values shall be calculated from oscillograph decay recordings of accelerometer signals taken by quickly turning off the exciter while exciting the unit. at the resonant fzequency.
A decay curve shall be developed from the oscillograph recordings and the damping shall be determined by the following formula:
1 X
C/C log c
2mn e
Xn where C/C Damping c
n
,Number of Cycles X
m Amplitude of Cycle "o" 0
X m
Amplitude of Cycle "n" n
A typical decay curve is shown in Figure 4.
Additionally, the bandwidth method shall be used to determine the specimen damping.
4.0 INSTRUMENTATZON 4.1 Excitation Control Exciter force input shall be measured and controlled by a force trans-ducer at the exciter attachment to the specimens.
Form IC64.2 Rev. 4/74
Page No.
113 Report No. 44560"1 541/1735-1/DK TEST PROCEDURE NO.
M(LE lABORAlUREB SCIENTIFIC SERVICES AND SYSTEMS GROUP PAGE NO.
Revision C
4.2 S ecimen Res onse Six (6) response accelerometers (three biaxial'.locations) shall be located on each specimen under test.
The biaxial locations shall be 1) the driving point,
- 2) the center of the cabinet face, and
- 3) approximately 18" from the floor.
Frequency response test accelerometer and force data shall be recorded on FM tape.
Znertance plots from the resonance search tests shall be presented in the test report.
5.0 BEPQRT Six (6) copies of a certification-type report shall be issued subse-quent to completion of testing.
This report shall be signed by a Registered Professional Engineer and shall include inertance plots, natural frequencies, mode shapes,
- damping, and accelerometer locations.
The report shall also include a list of the test equipment and its calibration.
Form 1054.2 Rev. 4/74
Page No.
114 Report No. 44560-1 Test Procedure No.
541/1735-1/DK Page No.
5 Revision C
~'
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TYPlCAL TEST SETUP
FULL SCALE INERTANCE 0.001 0 0.01 9 01 0 1.0 0 Page No. ll5 Report No. 44560-1 Test Procedure No.
54l/l735-l/DK Pace No-6 Revision.C to I
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Page No.
116 Report No. 44560-1 Test Procedure No.
541/1735-1/DK Page No.
7 Revision C
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541/1735-1/GK Page No.
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