ML18018A811
| ML18018A811 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 03/13/1979 |
| From: | Casaubon M, Esposito B, Tolf M ACTON ENVIRONMENTAL TESTING CORP. |
| To: | |
| Shared Package | |
| ML18018A805 | List: |
| References | |
| 14331-2, 14331-2-R01, 14331-2-R1, NUDOCS 8310130267 | |
| Download: ML18018A811 (25) | |
Text
Test Report No.
14331-2 REVISION 1 - 3/13/79 Ho. of Pages Report of Test on SEISMIC YIBRATION TESTING OF ONE {1) LIMITORQUE SMB-000/HOBC ACTUATOR
. FOR LIMITORQUE CORPORATION UNOER PURCHASE OROER NO. TL-413 KNVIROKMKNTAl ACTUS TESTINQ C 0 R P 0 R AT'I0 N Date January 31, 1979 Prepared B.Esposito igned Date BE/hAIf Checked M. Casaubon Approved M.L.Tolf I al 8+101302+
500pppp PDR
>DOCK 05
SEZSMZC TMT SMB-000/HOBC Test, Report OB0045
Subject:
Seismic testing of Limitorrpe SMB-000-5/HOBC
Reference:
A)
Seismic testing procedure for Limitorque SMB-000-5/
HOBC - Research c Development Project 4678023 B)
Acton Environmental Testing Corporation Test, Report,s tl4331-2 and 014331-3 UNZT DESCRZPTZON:
Unit Zdentification:
Motor Identification:
Type
~
Size:
Orde" No.
Serial No.
SMB 000 678023 Type:
Size:
Order No.
Serial No.
H OBC 3B8785A 273183 273180 Manual Unit denti 'ation:
Sta~:
Run:
Frame:
RPM:
Volts:
Amb. C:
Dut,y:
Horsepower:
Type
'hase:
Hz:
Amps:
Zns. Class:
5 1
R48 850 460 40 15 Min.
17 P
3 60
.9 RH
Test Report ¹B0045 Page 2
~ /
/ iy PRDCK)URZ:
Prior to seismic exposure, the SMB-000/BOBC vas equipped vith..a 5'¹ XP motor,.
four tzain - four gear limit svitch and an integral limit switch cover.
The torque svitch vas pre-set such that the HOBC manual unit delivered 450'¹ out-put torque.
The unit combinat'on vas mounted to a special seismic plate vith provisions for a stem with a torque arm and seat vhich simulated loading of the valve operator during valve closing.
The unit delivered 450'¹ output.
The limit and torque "svitch vere vired into a control unit vhich contained a reversing star er, a pushbutton cont"ol station, and indicating lights foz open, close and mid-st"oke positions.
The limit switch was set for a ten-second st"oke in each direction.
The "open" side of the torque mitch, normally closed, and one of the fuz Nest contacts from the intermittent gearing of the limit svitch, set foz normally
- closed, vere connected to chatter circuits calibrated to detect, one milli<<
second switch chattez.
(NOTZ:
While connecting the chatter circuit, it vas
.noted the torque svitch vas defective and could not be correc ed before star=
of test.
The defect created the torque svitch chatter noted during testing.
Prio developmental tests per ormed by Limitorcue have shoe the SMB-000 torque switch to be capable of vithstanMg up to Sg seisCc acceleration without swi ch chatter.)
The unit combination vas then subjecced to seismic tes '~g per referenced test procedure.
SZ~UZNCZ OF TZS ZNG:
The following table lists the type test, in chronological orde, as perfo~~d:
Reimrt IB0045 Page 3
Test No.
Axis of Excitation Frequency (lie)
Test Level (G)
Seismic Support Excitation Rate Bracket t Ada tar lh 2h 18 3B 4B 58 6B 78 5A II II V
II ll2 V
lll II II II ll2 ill V
1-50-1 1"50-1 1-60-1 1-60-1 1-50-1 1-50-1 33 5-36 5-36 33 5-36 33 33 33 33
.5
.5
.5
.5
.5
.5 3 ~ 4 ~ 5 ~ 6
.5
.5 3,4,5,6
.5 3,4,5,6 3,4,5,5.5 3,4,5,6 3,4,5,6 6 sec/freq.
6 sec/freq.
6 soc/freq.
6 soc/freq.
6 sec/freq.
6 sec/freq.
30 sac/level 1 oct/min 1 oct/min 30 sec/level 1 oct/min 30 sec/lovel 30 sec/level 30 sec/level 30 sec/level No Yes Yas Yes Yes Yas Yos Yas Yos No 7A 108 11B 128 138 148 II II II P
33 33 33 33 10-24 24-10 7i0e9
.025 DA
.75 30 sec/level 2 oct/min (90 min) 7,8,9,10,11,12 30 sec/level 7,8,9,10,11,12 30 sec/levol 7,8,9,10,11,12 30 sec/level No Yes Yes Yes Yes 15B
- NOTEx Due to stiffness of vortical fixtures of the seismic test apparatus, tlm samlil<<Mas surveyed Lo 60llz in tl>a vertical piano witliout distortion.
Test Repor
<<B0045 Page 4
~
J t
~
KVAMATZONOF TESTZNG:
The Limitoz~me actuator and seismic table vere monitored, using eighteen (18)
~
accelezometezs in conjunction vith recording visicorders.
A video tape record-ing system vas used to aid in field analysis of the dwell tests and an oscil-loscope in detexmuung true resonant frequencies.
A stroboscopic light vas used to detec relative movement betveen components of the Eimitorque valve actuator assembly.
RESONANT SEARCH:
The following tables suIIImarize the results of resonancy surveys of the refe enced repor s vith zespect to axis of vibration and unit configuration.
- Test, No.
Frequency of Point of Resonance Zndicat 'n Survey Rance (Hz)
Seismic Adamite H2 37.5 39.0 44.0 58.5 Motor end cap SMB-000 housing flange End cap motor, SMB-000 mtg flange a hsg top corner Gear frame of g.l.sw.
End cap of mt, SMB-000 hsg top corner a mtg flange 1"50-1 1-50-1 1-60-1 No No No Q
h4 0
I gg CP 3B 5B 6B 8B Hl H2 H2 104~
70~
74m None None None Motor end cap Motor end cap, SMB-000 hsg at top corner a
mounting flange Motoz end cap and SMB-000 housing None None None 1-60-1 1-50-1 1-50-1 5-36 5-36 5-36 Yes Yes Yes Yes Yes Yes f
C C
I gQ~
SZNUSOZDAL D~ TMT Dwell tests consisted of 30-second continuous steady state sinusoidal inputs, at any resonant frequencies detec ed belov 33 Hz.
Since no resonances were found in this region, dvells vere performed at 33H".
The unit vas operated during each dvell from the "open" position to "close" and back to "open".
Manual operat'on vas per ozmed between each axis change.
Tests
<<4B, 7B and 9B vere performed first to ensure a 6g minimum frag'lity level on the SMB-000-5/HOBC unit with the seismic support adapter and bracket before the unit became seismically abused.
During Test <<7B, the motor bolts
Test Report B0045 Page 5
- yielded, due to loosening in previous test,.
After replacing bolts, no problems vere detected.
The unit operated correctly during these tests.
Tests 4A, SA, 6A and 7A examined the fragility of the valve ac uator assembly with the standard adapter.
The following table lists the g level and exc't-ation direction during failure.
Test No G
Level Test Frequency (Hz) 4A H
5A Hl 6A fi 7A 5.5 33 33 33 During Test 04A, in the H2 plane, at 5.5g, a phase change in the rela 've movement of the unit, as viewed on a video tape recording, led to the discovery of a hairline fracture in the flanged adapter on the SMB-000 side.
The adapter vas replaced and afte" the 6g dwell in the H dir-ection the same sort of fracture vas found.
In both cases, the fract-ures did not hinder the operation of the un't.
No failures ve e found in Tests N6A and 7A t!@ough 12g testing.
Tests
- 10B, 11B and 12B examined the fragility of SMB-000/HOBC system
~
~
~
~
vie& the seismic support bracket.
and adapter.
The follow'ng table lis s axis excitation and level of failure.
Trs= Mo.
Axis 6 ~~vel Test Fzecuenc'I (H
)
10B 12 12B Hl H2 12 33 33 No failures occurzed during test iflOB (V axis), the unit operated corzec ly.
After the 12g dvell in Test 011B (Hl ax's),
a hairline frac are vas dis-covered and vas similar to the type as in previous frag'lity testing.
Test 12B vas suspended at, 9g level, due to a time factor.
During the first attempt at 9g's, a finger base of the limit svitch fractured.
I 's attachment to the gear limit box had not been inspected before the 9g bell test.
due to accelerated test'ng.
Accelerometers vere relocated to the gear f"arne cover of the gear limit svitch to prevent, elec "'cal shorting. of the accelercmeters:
The coverplate is a tM>etallic sheet; the response of the accelerometer mounted at this point. vas not indica 've to that of the gear limit svitch assembly.
Test Report, NB0045 Page 6
VIBRATION AGING TEST:
The actuator stem sy in Tests 413B<
14B and 15B was exposed to multi requency cycling.
Sinusoidal input consisted of a 10-100-10 Hz sweep at two (2) oc"aves/minute, with a double amplitude of 0.025 inches from 10-24H, and 0.75g 24-100Hz, for 90 minutes in each orthoganal axis.
The actuator was cycled every fifteen (15) minutes.
No deteriorat'on or malfunctions occurred in this test.
Resonant fzequenc'es corroborated those determined in Tests
- 41B, 2B and 3B.
At the end of testing, the unit was operated both electrically and manually with no problems apparent.
CONCLUSIONS:
Based on the results presented in Acton Repor 014331-2, the SMB-000-5/HOBC is quali ied to IEEE 344 (1975) to a level of 5g's.
The unit pe ormed all functions and tozqued out at, mocimum torque with no malfunction oz'hysical damage during and after all dwells.
Damage was not noted until g levels of 5.5 and higher were reached.
The un't was subjected to several dwells at various g levels, cons='tuting the equivalent 5 OBE dwells normally pez ozmed.
Based on the results presented in Acton Report
%14331-3, the SMB-000-5/
HOBC with. seismic support bracket is qualified to 9 g's.
The damaged finger base, noted during Test 12B, was conside ed a result of the ex-cessive testing experienced during the prior fragility testing and a re-sult of loose hardware. The second finger base installed on the four t=ain gear limit swi ch functioned properly without physical damage.
Respec ully submitted, tavX mama Young Assistant Chief Test Engineez At achments cc:
W.J. Denkowski I.E. Wilkinson W.L. Sykes C.D. Formica J.B. Drab D.S. Warsing D.A. Dipasquale
REVISION RECORD DATE 1/31/79 3/10/79 REVISION NUMBER PAGE PARAGRAPH NUMBER NUMBER 1.0 3.0 3
3.2 Footnote Footnote 4.1(2A) 4.2(5A) 4.2(6A) 4.2 0
FIRST ISSUE CHANGES OR ADDITIONS APPROVED BY'&&W&&%W&W&WIW&mm
'Added last sentence Changed 67803 to 67B023 Changed 440 to 460 Typographical cor-rection Typographical cor' rection Corrected spelling of frame, added coma Changed valve to actuator Added awi.ch Added last sentence ENVlggONAICITAL, 14331-2 Report No; ACTON
Administrative Oata
'T vibration testing.
Limitorque Corporation Lynchburg, Virginia SMB-000/HOBC Limitorque Seismic Test of Limitorque SMB-000/HOBC RSD Project 8678023, dated 8/24/78.
One (1)
Unclassified September ll, 1978 C.Pilotte Returned to Limitorque Corporation.
Refer to result section herein.
14331-2 Report No.
Page 1
1.0 TEST ITEM One (1) Limitoraue SMB-000/HOBC.Actuator was submitted by Limitor ue Corporation for seismic vibration testing at Acton Environmental Testing Corporation (AETC}.
Rote:
Actuator was also subjected
-to additional seismic excitation as documented in Acton Report
. 14331-3.
2.
E EIE The purpose of this test was to subject the actuator speci-fied in section 1.0 above to the seismic vibration test specified in Limitorque Seismic Test of Limitorque SMB-000/HOBC Research I Development Project No. 678023, dated August 24, 1978, to determine its ability to withstand such vibration without evidence of mechanical damage, deterioration, loss of its abil-ity to operate properly, or contact chatter in excess of one (1) millisecond.
3.0 TEST PROCEDURES This test was oerformed under the direction of Mr. Paul Youna of Limitorque Corporation and in accordance with Limitorque Seismic Test of Limitorque SMB-000/HOBC Research E Development Project No. 678023, dated August 24, 1978.
The actuator was bolted to a test fixture supplied by Limitorque.
The test fixture was then securely attached to the single-axis table of the AETC seismic test facility, 3.2 Test Conditions All tests were performed at room temperature and pressure.
During the resonance survey specified in section 3.4 below, the actuator was not operated.
During the sinusoidal dwell test specified in section 3.5 below, the actuator was cycled open and closed at least once per dwell. 460 VAC 39 power was supplied to the actuator.
.3
~T<<
The actuator was visually monitored for any evidence of 14331-2 Report No.
Rev l ACTCtN 2
PoQE
mechanical damage, deterioration or loss of its ability to operate properly.
The actuator was monitored with triaxial groups of accel-erometers by AETC personnel to determine its. mechanical response during the resonance survey and sinusoidal dwell test specified in sections 3;4 and 3.5 below.
Data from these accelerometers through appropriate signal condition-ing was recorded on visicorder recording paper included with this report.
The eighteen (18) monitoring accelero-meters and one (1) control accelerometer were mounted as follows:
ACCELEROMETER AXIS SENSING NO.
OR IENTATION*
LOCATION 1
2 3'0 ll 12 13 14 15 16 17 18 Hl H2 V
Hl H2 V
Hl H2 V
Hl H2 V
Hl H2 V
Hl H2 V
Triaxial on end of motor Triaxial on SMB-000 Housing at mounting flange Tr iaxial on HOBC moun.ing adaptor Triaxial on base of test.
fixture, control is f12 Triaxial on top corner of actuator housing Triaxial on gear frame of geared switch Hl is the horizontal axis parallel to the motor axis.
H2 is the horizontal axis perpendicular to the motor axis V
is the vertical axis Report No.
14331-2 Rev 1
ENWRCl4&CNTAL
~MQ ACTOR 3
Page
One (1) normally closed (N/C) set of contacts of the limit switch and one (1) N/C set of contacts of the torque switch were monitored for contact chatter in excess of one (1) millisecond.
3.4 Resonance Surve The resonance survey consisted of a sinusoidal input with peak horizontal or vertical accelerations of 0.5g.
The resonance survey was conducted at a sweep rate of 6 seconds/Hz.
The resonance surveys were performed as follows:
TEST NO.
AXIS OF EXCITATION*
FRE UENCY RANGE Hz lA 2A Hl 1-50-1 1-50-1 3A 1-60-1 3.5 Sinusoidal Owell Test The sinusoidal dwell test consisted of a continuous steady state sinusoidal input.
The sinusoidal dwell tes't was to be performed at the resonant frequencies found during the resonance survey (only those below 33 Hz) specified in section 3.4a above.
If-no reson-ances were detected, then testing was to be performed at 33 Hz.
Each input at each test level was for a duration of thirty (30) seconds.
The input was applied as follows:
TEST NO.
AXIS OF EXCITATION>>
TEST LEVEL G TEST FREO.
Hz 4A H2 Hl 3,4,5,5.5 3,4,5,6 33 33 6A 7A Hl is the horizontal axis H2 is the horizontal axis V
is the vertical axis V
7 8,9,10,11,12 33 parallel to the motor axis perpendicular to the motor axis V'456 33 Rc:port No. 14331-2 Rev 1
ACTON Page 4
~
~
. w
~
4.0 TEST RESULTS
- 4. 1 Resonance Surve Test Results TEST 1A:
Resonance was detected at 37.5 Hz on the gear limit housing, end cap of the motor and housing flange.
The torque switch chattered.
This switch was defective before the start of the test.
TEST 2A:
Resonance was detected at 44 Hz on the gear frame of gear limit switch, at 39 Hz, on the end cap of motor and top corner of actuato~
- housing, as well as the SMB-000 mounting flange.
TEST 3A:
Resonance was detected at 46.3 Hz on the gear box housing of the gear limit switch at, 58.5 Hz on the end cap of the motor, top corner of actuator housing and the SMB-000 housing mounting flange.
4.2 Sinusoidal Owell Test Results TEST 4A:
The actuator was operated at each test level.
On the 5.5g level the coupling adaptor fractured.
The adaptor was removed and replaced with an-other one.
TEST 5A:
The actuator was operated at each test level and the torque switch chattered at each level. At the completion of the 6g run during TEST 5A, the coupling adaptor was found to have a hair-line fracture.
The coupling was replaced.
TEST 6A:
The actuator was operated at each test level.
No switch chatter occured and no mechanical. damage occured.
Report No.
14331-2 Rev 1
ACTOM 5
Pope
TEST 7A:
The actuator was operated at each test level.
The torque switch chattered at 7g's, 8g's, gg's, 10g's, llg's K 12g's.
Following completion of the 8g run, the gear limit housing was retightened.
The actuator was operated manually by the representative from Limitorque after testing in each axis was completed.
14331-2 Report No.
Rev 1
ACTON TESTlt41 6
Poga
NAHE TEST E(UIPtIEtlT LIST HODEL 5ER. tl0.
RnnGE ACCURACY IIIV.J CAL.FREI'xciter Amplifier Ling L ing Controller Chatter Honitor Power Supply Rack HTS Hatrix PCB Ilydraul ic Ac tua tor HTS 2020 310 483A 299 A249 70 PP I20/150 56 204.635 443. 115 30,000 force 1" P/P disp.
45 5 - 5 Kllz t2Z OC - 300 llz, 25K force lbs.
+2Z F 25" OA max.
t5Z A OC - 2000 llz
~IZ Detection:10 6
100 usec
+2Z 22 YOC 12 HAOC 12 channel PE317 1 month PE367 6 months PE370 6 month:
n PE379 6 months Power 5upply 6 Amplifier PC.O 403H23 209 12 channel Xl 6 X5 gain filter freq.
50 Hz ti/A PE385 6 months I
Power Supply Visicorder Visicorder Visicorder Timer Seconds Strobotac Sweep Oscillator Scope, Storage Power Supply Power Supply Decade Ampl.
PCO Honeywell lioneywe1 1
lioneywe 1 1 GRC SDY Tektronix Trygon Oubr Glen 403A02 90GO 8607 906 1508 S60 9-5235 161715R F408 624 1531A 185 SO-104-5 21A 564-11502 IIRGQ-5A 27979 506/16 322 422YOC current 4 HA 6 channel OC-2 Kllz 12 channel OC-2 Kllz 12 channel 12 channel-metric 0-60 seconds 1
rpm 0-25K rpm 0.005 llz -50 Kllz OC to 10 Hllz 60 volts 5 amps
+15 YDC, 1'DC 3 to 100 Kllz 40db/xl00 tl/A
~ldb
- PE397, 6 months RE301 3 months
~ldb
+ldb
~0.lsec
+IZ, 43Z
.01Z BE332 3 months, I
I
~ RE347 3 months I
fH311 6 months PP322 6
months'G315 6 months 05309 3 months PO320 6 months
+IZ AH315 6 months.4 tN 0.5>>
PD372 6 months
HO1E HfGR.
HOOEL TEST El1UIPHEHT LIST SER.HO.
RANGE ACCURACY IHY.P CAL.FREO.
Accel erome ter II PCB BK 302A 4344 302A 667 668 671 673 2845 694 696 697 2851 2852 447575 2856 1772 1774 1700 1781 1805 1811 0.25 llz - 5 Kllz 1Hz -5Kllz 0.25 llz -
5 Kllz 1 llz - 5 Kllz 0.25 - 5 Kllz 1 llz - 5 Kllz
+5K AC376 3 months AC377 "
AC380 "
AC382 "
AC383 "
AC384 "
AC386 "
AC387 "
AC392 "
AC394 "
AC395 "
AC414 "
A(415 "
AC417 "
AC423 "
AC424 "
AC425 "
A(429 "