ML20027B192
| ML20027B192 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 08/05/1982 |
| From: | Winterhoff D COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20027B187 | List: |
| References | |
| LER-82-065-01T, LER-82-65-1T, NUDOCS 8209160518 | |
| Download: ML20027B192 (4) | |
Text
{{#Wiki_filter:' a i s eu.-!P.En G LAF- 1500-5 UCENSEE EVENT RE* ORT Rav 2
=NTa'6t. start: I I I I I i 1 trtu.se rasen on m u.:. =ccumre surogya rch 12, 1; i e@ 23 ])*lF';LlLl5 iC l1 l 0 1 0l-l0l0l0l0l0 l - l 010 Ig 4- l 1_.,i0a l0 l 0 !g ,, ml =
l
, , _u cm, .. . _ .. .
e
-, ae-e t
L l 0; 5 i 0;Oj0 i 3 1 7 l3 0; 7 2 1 2 l 8 g 2v G; ; ; i g g ; w er s 51 Docs.E ps.wggp 65 er. Evtx; CATE .*
. h m E.PtpqT ;A rg sc EVENT OE5cRimCN AND PRCEASti 00HSECUENCES h m :On 7/23/82 Commonwealth Edison notified NRC Realon ill and NRR personnel of a potential i ,3, (10CFR50(55E) assessment involving post LOCA chugging phenonena with suppression chamber y ,A, i ot Drywell Vacuum Breakers. Af ter reviewing tests of similar valves Commonwealth Edison ; ,, j g has concluded that Lssalle County vacuum breaker valves are adequate and will perform ; , q ,gheir intended safety funttion. ,
I i71 1 i., 1 i
.. S'**""Da CAC3f CAULE CLPau". VALyg ,
SUSCOOE :DadPCw&NT CODE r" $USCDDE CODE COOT
. 51 Di@ nl B !@ ul Al@ Iv 1,_,gj @ U @
ii n ! s , i: u IA It lv IE fx tsl@ rs s suourwT% c :;aaeacz me-twe:- arv m
- E *O"~ "C- CODE M *ec.
IV E
- I A'"
l-j l 01 61 5l I/ IO I1 l 1T l l- ! l0l h "*uU."8 a/*CE'8l2l E *c '~ _l:i.:: =. 2 a :7 :s :s =a a _. ac ,o= .t-s. 1. ec- s e ee- e 4- A >.w e* T % e=wc:= . e$c,o oNeu,r', Om etANT M C)*C0 #CU RS- Sut**8T"tO roman a.im . ss**u tA .gy .,g y g a TAec2 ae ac"1 D*e
.., =lZ glXJg l=Z}g ly @ !0101010l l Y j@
l N J@ lAl@
}G l2 D l2lg ,, ,
~'
c.r ucs :EsdsimoN ANO CORRc . AVE AO'!1CNS , r i;.t lWri tten response of this potential 10CFR50I55E) will be issued. ; I f i3 y.gAdditional_.tes.ts will be conducted on a full size LaSaile Countv valve as described l l , ; j. ;i n .let ter. f. rom .L. DelGeorge to H. Denton, dated 7/26/82. r I 'i: t . L. - I t ia l ma ! hie e. ews42 @ i "Es*r5 iDl@l NLA Review
- + ==-rio,.
l
- s1.li @ lnin12 l@l t . .: u n on
- .a 4 ..
c ve-- ==~ rtv? I T *""".ON CP RELEAS E eg,.,gA,s OpagtgAss AwC'p( 07 a.c"-vr*v i HA 46l l102 _l@f11 N A e4 et go J 8 9
- n.
- 3~,ce a-:ss es '
t a.; sue t o -'** t OtsP **1CN - I NA r i : i 10 ! O 10 !@! Z i@lu so l , u u Pre s s,.% g g i.qv a i t,$
- aivwefe t scw ' **1 C*
1.
's!l0!O10!@!
. , n u NA I LO::Os ce ca .cric 0:u-*
--* t : E 5:*'c o* ;. . .- a_.- .I NA l7 si ti }Zi@l.c _- .
8209160518 820805 N R C t E ON LY I w :-
- Q 6/
' :ts: -'c PDR ADOCK 05000373 :* !I IIII! II,'I'! t : i =.
'nf,c%4 ! NA S PDR 53 59 :.
* .= -.-
( . -- p j .: Q e. . i - , m , . , m , . n -c ut 1v a e. .-:.a. >
. - 1. LER NUMBER: 82-065/olT-0
- 11. LASALLE COUNTY STATION: UNIT I 111. DOCKET NUMBER: 050 373 IV. EVENT DESCRIPTION On July 23,1982 at 1300 hours Commonwealth. Edison Nuclear Licensing notified NRC Region 111 and NRR personnel of a potenial 10CFR50 (55E) assesment. Recent design reviews of the " Surpression Chamber to Dry-well Vacuum Breakers" has led to the tentative conclusion that the installed GPE 30" Vacuum Dreakers may exceed the LaSalle County specific load defini tion as defined by the Mark 11 Owners Group for the case of a double guillotine failure on a recirculation loop. The LaSalle County Drywell 1 Surpression Chamber Vacuum Breakers Valves are ex-pected to undergo a single open-shut cycle as a result of the Surpression Chamber pressurization associated with pool swell in a Post-Loca condition..
V. PROBABLE CONSEQUENCES OF THE OCCURANCE: Commonwealth Edison has reviewed and presented to the NRC Staff results of extensive analyses and confirmatory tests performed by Mark I con-tainment owners having GPE 18" and 24" vacuum breaker valves of similar design. The applicability of these results to the LaSalle County valves was reviewed with the . Mark 1 Owners' consultant who Judged the results indicative of the capability for the. LaSalle County Vacuum Breaker valves to operate adequately and perform their intended safety function. VI. CAUSE The potenial problem of Drywell/Surpression Chamber Vaccum Breaker valve failure was reviewed with the NRR Staff on July 23, 1982. Further discussion is provided in the attached letter from L.O. DelGeorge to H.R. Denton dated July 26, 1982. Vll. CORRECTIVE ACTION Vritten response of this potenial 10CFR50 (55E) will be issused to document this Drywell/Surpression Chamber Vacuum Breaker Valve Post-Loca chugging phe aomena. Additional tests will be conducted on a full size LaSalle County valve as described in the above letter. Prepared by: D. Vinterhof f o$c gr.9<-s2 s' 4 C,:- m~- - J
a :. . ~. .. '....-...-........... . . - - . _ ~ .. CM S jro
. ,~
.yV -
LSCS Jul y 2 6, 1982 Messrs: C. Reed /N. A. Kershaw Q.A. Engineer - SNED J. S. Abel D. J. Scott (NC Only) H. E. Bliss V. I. Schlosser - RIII Only J. D. Bowers B.R. Shelto n/ T . E. Watts L. J. Burke - RIII Only W. J. Shewski T. C. Cihla r/ G. E. Peterson B . B . Stephenson/D . L. ShambJ in E. E. Fitrpatrick W. L. Stiede D. P. Galle H. K . Stol t/W . L. Eck K. L. Graesser (NC Only) (Bull. , Circ . , & I. No t. Only) J. F. Gudac' (NC Only) R. J. Tamminga (ISI Only) R. H. Holyoak G. P. Wagner J. H. Hughes P. P. Steptoe-IL&B (Letters Only) R. E. Jo rtberg H. R . Pe f fer - G.E. N. J. Kalivianakis M. A. Bowidowicz - S&L A. W. Kleinrath/A. D.'Rossin G. Wright - State o f Illinois R. Kyrouac (NRC/ CECO Ltrs only) D. E. Lindvall G. F. Owsley - Exxon J. J. Maley W. R. Bird - Consumer s Powe r Co . T. E. Quaka - RIII Only R. E. Querio - RIII Only NL Distribution R. Ralph In the judgement of the Nuclear Licensing . Administrator, the attached document contains the fol* lowing commitments to the NRC or requirements from the NRC. . Identification o f At tached Document: LSCS1/2 - Drywell/Wetwell Vacuum Breaker Assessmen t; L. O. DelGeorge letter to H. R. Denton dated July 26, 1982. ' NRC Commitment or Recuirement: Responsible ' Due Date Commitment or Recuirement Edison Depa rtme n t 8/13/82 Provide NL A schedule for conduct of vacuum PE/B. Shelton breaker test-inclucing expected date o f bounding test run. 11/1/82 Provide NLA evaluation report on results PE/B. Shelton of vacuum breaker test for transmittal to NRC. Note: NLA should be on distribution for all preliminary drafts of this report. - NOTE: (1) Proj. Eng. is expected to coordinate with LSCS operations / construction to make a valve availaole for testing. r: - - - .
r--- - . _ _ - ___- _ ._ - - - - - ... . . .,. 2 a _ . . .:_ __ 4 (2) Proj. Eng. is expected to initiate a final design basis evaluation o f the subject valves including plant specific load definition, possible modifications and replacement of the U2 valve used for the test. When it is determined by the responsible department that a due date will not be met, the Nuclear Licensing Administrator should be notified immediately. L. O. De1 George 82-29 d 6 e C: , ~ . -- 9
. Commonw c!!h Edis:n
, one First Nanensi Pla:a. Cmcrge. ininois ;,
Ac::ress Reply to- Post Othee Box 767
,, Chicago lhinois 60690 July 26, 1962 Mr . Ha r ol d R . Denton, Director Dffice o f Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
LaSalle County Station Units 1 and 2 Drywell/Wetwell Vacuum Breake r Assessment NRC Docket Nos. 50-373/374
Dear Mr. Denton:
The purpose o f this submittal is to document the
~
Commonwealth Edison assessment of the drywell/wetwell vacuum breakers 1982. The which was reviewed with your staff on July 22 and 23, subject valves have been reviewed through the Mark II Containment Owners Group and a generic. bounding load definition established. The methodology associated with this review was discussed with your s ta f f in May,1982. We are unaware, at this time,methodology this of any dutstanding has not questions although a report documenting yet been submitted. Relative to the bounding load definition, it should be recognized that the LaSalle County valves, due to their location outside the wetwell, do not experience cycling (open and shut) as a result of the post-LOC A cnugging phenomena. The LaSalle County valves are expected to undergo a single open-shut cycle as a result of the wetwell pressurization associated with pool swell. The pipe break size leading to the maximum swell induced dif ferential pressure (dP) is ciscussec in At tachment I o f this letter. having established tha t a pool swell inducedd P across the vacuum breakers must be assesse0 to assure that the valve safety function will be fulfilleo, Commonwealth Edison has performed what is juoged a bounding assessment u-sing bounding generic angular velocities associated with the maximumd P developed through the Mark II Owners Group. The conservatisms in this load definition, both witn respect to the generic methodology and plant specific applicaton to LaSalle County are discussed in At tachment II. Of primary importance is the fact that the LaSalle County valves are outsice tne wedell and are in a pipe loop which also contains two isclation valves. Tnis configuration is likely to have a sicnificant effect on the LaSalle County specified P and thereby, tne LaSalle County specific load definition. These numbers , and other ' plant-specific adjustments to the generic load denfition are now being deve1Yp[ed"a'nq Sill be incorporateo into the final design casis evaluation. N ff, QnnAAGhlO! h(/ 0 ,r v I r o "1 ' I
_2 Notwithstanding the expected reduction in the plant specific load definition, a bounding evaluation of the vacuum breakers has been performed. This evaluation, which was reviewed with the staff on July 22, 1982 indicated that the LaSalle County vacuum breakers would fulfill their safety function. --~ ; n uncertainties associated with this evaluation, i.e. theAs a result o f applicability of the closing impact results on the opening impact
" loads on the valve body and internals; Commonwealth Edison reviewed and prsented to the NRC staf f the results of extensive analyses and confirmatory tests performed by Mark I containment owners having vacuum breakers of similar design (18" and 24" GPE valves) . The applicability of these results to the LaSalle County valves was reviewed with the Mark I owners' consultant, and those results were judged indicative o f the capability of the LaSalle County valve.
The results of this detailed assessment, presented to the staff on July 23, 1982, are docuemented in At tachment III. O f particular interest is the fact that this assessment clearly _ indicates that the; closing impact bounds the opening impact case, the major expressed staff concern. It is o'n the basis of the simplified analysis of the LaSalle County vacuum breakers, supported by the applicable Mark I program detailed analyses anc test of similar valves that Commonwealth Eoison.has concluded that the LaSalle County vacuum breakers function. are adequate and w111 ful' fill 1 heir intended safety This conclusion is further supported by the fact that the
~~""
- r. bounding load ' definition is of exteremely low probability due to its dependence on a double guillotine failure of the largest diameter pipe (s) ( At tachment I); and due to the expected reduction in the LaSalle specific load definition When appropriate refinements are made t o reflect actual LaSalle County parameters ( At tachment II) .
Notwithstanding our belief in the present adequacy of these valves, Commonwealth Edison will conduct a confirmatory test on a full size LaSalle County valve using the bounding generic load definition. This test will be completed and an evaluation presented to the NRC by November 1, 1982. The NRC Staf f will be given advance notice of the cate of the bounding test run to allow for their observa tion o f the' tes t if desired. It is fully expected that this test of an actual LaSalle County valve to what is judged a very conservative load cefinition will resolve all present uncertainties. EMW'
m.:.~.-.-.-:. . -- . .. .-. .. . . ~ -
.. .= : ;- . w .. .. ..
. -- ~ .
If you have any questions concerning this submittal, please contact this office. . Very truly yours, L . O . DelGeo rg e cc: NRC Resident Inspector - LSCS O e 0 a e me 4591N A
.g*' NN
- O
...- _ .. . -... . . . - . . . . .. -. . .- - n AT T AC HMEN T I LaSalle County Maximum Uclif t Pre s su r e
Reference:
LSCS OAR Vow = 221,500 ft3 Vww = 166,400 f t3 Ventsub = 12.83 f t Avent = 295.2 f t2 98 vents) Vpool = 142,160 ft Pool depth = 26.5 ft. Apool = 5069 ft2 (i.e . Voool - A vents) D pool
- 1. From Haise - Economos Report (NUREG-CR2191)
- F = Ag x Ap x Vgw/V0W x A@ ~
21 PUP = MAX. AT F = .06 and is positive from F = 0.35 to .12
- 2. For LaSalle County at F = .06 ABreax 1.37 ft2 for max. uplift pressure
.80 < AB< 2.74 ft2
~*
T*_E .- %=~* _- - -- a
_ _. _ _ _ m-.m ,,
-r.... ~. . _ . . ,
d ATTACHENT II E x p e dcA. Valve _ btsc. Ve t oc?47
?.ci s w e.0 APup
.ae 4Tco runs , 9 wWL. mea.sec eJ. n P op
.a max cows
- C.n C eI C- Ca.\c. O k a$ l ow p fe_dic_hs 4Eop der M k. S A P up valu.e_
N w e_ corce.c.4tes ba. sea. ew- ene_ 1%4~ p e s'd 0 2.
. C-E c.ecce 4to4 bo. sed. es ida +5 Pue-We_c- c.c e rec 41.n.s 4er owc.ee4alw\
7 + 1. E E 3 p e c.A=. A unc.er 4ddy. '.5
. c. cm. c_ L 3 \ e w. -
L p e.che.l. pe_d:. aPap ~ 9 ps'. E.y.pse4c.d v e'\ o c.' 4 i s less , 7 l w ; .- - ~ - - s
-- v.. i2 .=. . ,. : . . =u ..: = - .:_- - -- - -
= ... -
45-6L4(LT V A LV E C.ON FI C U P A Tl C M
. VM Cl4 4 M BR.EAKER 15 B ETLv E E M i S o LATI oN VALVES dPup A P PLiE b A c t.oS $ V4 Cl4 t4 M BREAkET.
. bP VA cta t4 m S Re#A EG P- [ APgp A
A <r s u it r 0 e5 i c. M VACLtilM 6 R E A V ET- R E5tsTA NCG nS r \/ a, oV ' kS- Blat t.T Co NFI G ulA T/c At
-e 0
e C . .- . ~ . - .
-w- - -
- - . , . - - . - , - - . - - - , - - , - -- , , , e --.,.
-a.....-..
s H YD RO DY NA TAl c ToequE T = L, A a? W BouNdJNc. VALu E uSED
. OVE R PRE bic T S M E A s u p_ E D PsE sutrs RE F lME M A 9. 6 lM MkI $XPEElEN C E PRoDuc E D R e b e.4 c e b IM P AC T VE L oc l T y i
I l i l 4 C. .- . - . 1l i
# e O
t e e 4 es Wareca Nuxe s em MN@< I. CrP e NJ hc. alum th eM<s.a s *N b t.oM2 ftLs.ctN % LAS Aus \l AC.ux u SesAQs 9 e
- % a- m us
- \g" id hG K "--
2.4 N MX T_ ! L_ As. hw_
. Msursd %su e i
- e sca ww h %cs.
${d9bbY DD 6.L b srzas.s. /s nesecs. Masau M M :tsss Ms.m 3 r
- DtSPQsc6M F s h.\ E. h .6 D 7.4 E S 3
- SW-eN c.,T 's (2_ A n 0 5 3l an.*=
\& M trox L_
l l
~
2$ N hG W T .
- TE.sv 9C4 CLhM kNb. v2M O N IUS O M ma
.M E W 5\.5 -
Ce a c.t as s: N5
GPE - WETWELL/ORYWELL VACUUM BREAKERS . . LASALLE 24-INCil HK I 18-INCll HK I 25' 22 21 PALLET DIA. (IllCilES) 45 50 40 PALLET WEIGilT (LD) TOTAL SUSPENDED WElGilT (LB) - 61 50 PALLET TillCKNESS (INCil) 3/8 7/16 . 3/8 SA 516-GR70 SA240-TP31655 SA516-cR70 PALLET /lATERIAL tilHGEljYPE IIALF PINS - , llALF PINS FULL PIN VALVE 80DY TillCKNES'S (INCll) 3/8 3/8 3/8 VALVE !D0DY MATERIAL SA516-GR70 SA516-GR70 SA516-GR70 PINS RING PINS VALVE EODY SEAT DETAIL O e m 9 l i # i
- a. - -
Y) (. . a. N4 l b [SEE FIG. I-3 I L. N f; .' - I
'; J ,l rf ~~*'
% ,4 .,
- ~
_ . + 7, I . *, ,nm,_ , r." l ' /. \ .. _~ --
.. T \ . , ,. + ,
YSEAT RIMG _ '~'s _ __
.o N
-\~
--*- '-{~
Q
~--
\ + .s p 5
+ FWLLET +
te
.k N - PALLET (CLOSE POSITION)
-i
+ ,
\ ,
_'L
\p ,
\ '
+
+
\ l i
. 4]
/
O _f___ 1
,$, SEE FIG. l- 4 , PALLET STOP MAGNET L ATCt i STuo LOCATION YACUOM BREMER W/LL (4 Pl.CS)
P!GUllE 1-2 U . GPl! 18" VALVF. Cl!OHliTRY c
* (GPli TYl'F. LD-240-208) -
g O .
- v. . w_ . : . . . . . = . - = -
l l nl . e E - T N .-- _ lY - 4
, W #
e # E
$F I
.Es;" $ 2 5 6 w ni o o
,p,a '
" h d P=
k E .:. U) Lt. P 11 171 l d E f t 7 / / /j L' [,
,, g Q S N.
a u n3 s.s
$~ %o c.c 3a
<2 !
-m R
>c~
< m s .
m e o C us c .'. ... Z
-2 4t- :.: E ,.*.,
g
.a u)
= u.3 a 4 = <
c > ::.:
- W',
~n l .h N ~
O
. s' .
55 m c - O O.
.s j ~+- s
/
's g
'O ,
\
,) e-i
'O f
g* f AA- -
.I I liI I,
<s 1
) f<- ' { e{- , J.
~6-l
\
/
g e ._. x / . I g' N ' ,/ S ' s + M '.O , e; +. :. 0I5-67-018 1-10 Mu.i.ec!h t
-; 6% . . , - . - .
^
. . . . ~d . w . . . si m .,
. .,,..,j-h g
- 6 i t
. M t i I
- E z d.
k [ id 4 4 3 s QG is !
; 5, I
fV y8o 2
= "c I e
- K 2 4 E &
W , O 2 e 4 ' Ee L E O L
/ m 2 /
J
~
uly < CC ' 20 - & o O W \ ' n = w , m . -
, o
=
_..il., 3 , . -e. - . m m E 7 - D 1:.:
--ll'. 2 C >
m < F - I f a W !
!z I ll i b\
\
\ .
r iia \
?-Y5, &i .
; I:
M
\ ,
\ ^
\Y E< c.:,
s <A y.
. s -
CIS-67-01B 1-e nutec 1
.. . ... . .m,-,,.-.--,- -.:------..._.-.--.
. 'l i
i it h F ! PALLET SE AL _ F PALLET SF.AL RET AINER M ]i\\ l-I- ~ STANLESS STEEL ' WELD BUILDUP pAtLE r i
,\\\
'd
~ SEAT Rt NG . SA-54 I
(fl//////nN-i w
/gi I il ,
. i 1 i , i -
r iI ,'il tvl: ,s
- q \
PALLET STOP STUO h m.4 u:Es - SEE FIO. 1-2 FIGURE l-4 GPE IS" VALVE SEAT DETAILS t:; .- __ .. cts-c -ois 1-9 nuteCh
~
~%, w ww - - -,. ,T -C
~ . . .,mr -
_ - ,. .. o-n ,- ~ n.- ...- , , _ _ . - - . - - - .-----.a-w----> l l l PA1.LET HlNSE - HINGE PlVCT SHAFT l TBMXET l I I f// ~^ 2
+-dk y l\\ \\(
[N\ x\ H % L.-.e/ rA i I LNNN NNNNNNNNNNN z r N i M
'-~
j j i - cl a .- ...} lY /A i .P)voT stock t HINGE Anu SECTIObd A-A
' ' VA1.VE
-- SE;47 x .
x'
- pivot t-PwoT BLOCK
\ SoLT (V:Y o ,
di siwcn i d , ..:~ f -(I) i - O-1
-G-i ($) '
l,
- y. : , Ang
.-G-
.g. -
-.--- ,~ (-G .
e a 0 1
-O-I 1
, HINGE ARM
-e-m-
STUD (Vi) W4.LE"T PAL 1 ET HI N G E. PALLET BFJ CKET HINGE SR AC.K,c i sTuo(.W) FIGURE l-7 i GPE 24" VALVE HINGE GEOMETRY \ l E~.'..- . , _ . - . 1-12 nUteC:~1 j n-s7-oss i
. - - . a -- _. n..-- 1 C r f, li h E {
~~ ~
RETA tWIMG , R!MO i o N/ VI1VE ' ge GA5KET M AT
\
fg PA4.t.?_T
- 8 $.
/
/
f L (i_ c 7:-:hLEsS STEF-Wr D St M'- O U P FIGURE 1-6 C?E 24" VALVE SEAT GEOMETRY C .- ,n. cts-a -ci s 1-11 nutOCh
..._- : n...- - . _..-
-- . w . -- - - ~ .: w:. . . . . . . . -
. \
k o
- - - _ - _ ~ - - . >>,,,,,,
6
---_7/
_ _ _ _/ _ \_ _ _ _ g s-__ _ _1 I
\\
r \\ _ s
/
\
\\ e
. \\ I W
(] \N \\ co wwtw \\ \ UALVE F5 CLCtEp
\ ( .,A \ '
\\ f
# P '
\\ ' , ,7' .
r
\\ ,
\\ '
\)
1 . ...
- ~ ---
g ib , ,
,- /
FIGUFl 2-4 , VALVE ASSDel.Y AND 50RCE SYSTEM .
,, l a t -s ,
.)
/
~*
, , ." '- N
. /, 4
/'
f 7/ hutech' ' cts-o -oi s . 2-ic
. , ~; ,_ . . . . . -
..a._--
-- w .n :.e. .-.:...--..
s P
- J GEN-67-011 e 01'* - ( 91) 3380d 3MnSS3Md DSIC (3 nil 03HSUG) 00 a co t h 00 0 t co g- .
co a- ? co at-o G
.. . ~
=
-. . N
's *.y
+-
s ' T. o
~ i n
- e. 4x. ..- - . = , . .
m o y
,m
~,. . z , . . . .. O Q.- ' a:- ?. c .
< a w m o 2 ' g::
o x g .. .
- - =
g. m o m y
.~..
s
----)
~
m n -,
.;.. .c - m.
a = - .. 2 a , ... ,. u a a - o 5
=
p , {* - t* ,
= = #o
-w ?
2 <
. -. .,+J cn m >.
s . m c2 o u_ 3 - w x a 5m - s C o -lE. 3 w s> . .-- =r - . a .
- a. .
e a s _____- g e- r., e
= .
- = , -_-
u - - a - - - . . . . . . e =* #u - E' - a
= e - o .
- m. ._ _
N " *"* k ,- j u
$.,' . g c.
_ a _______ .
=v -
s 3 < g.- - - - - _ . _ _ _ _ _ _ _ - _ _ - . o m ___ _ _. - - o a
= 5._
w . w _m...
.,,. x. -
c .- - _ _ - s l
% w) '
~._ .e .
o i
._Q./"
m e . oc a oe o ch o co o~ h es f.I at t / (088) .LNEW3DS12EIO M6inDNS (3NI l 0110S) s 1 k I ' MUIec',
~
-..;. J..a r-;:..:: a L m.a u:=- . .
GEN-67-011 (a) UP IMPACT 6 6 7 - 7
~
8 kN
- c; N
.r \
.. .e .
- - \
S GAP ELEMENT 8
/T 1 2 3 4
/HH/' *
'? .- -
- p. ~ k d' .6 . 7 l
i 3 A e 1*
/.
) .
l -
. ~f ' ..
)
e
.Igs. 1, '. .
s : . (b) D0'h3 IM?ACT ._ I 2 GAS.GT MATERIAI. GAP ELEMENTS - 8, 9, 10, 12 I egi
' ' !]
d METAL TO METAL CONTACT l . (DISC WITH STUDS) i 3 GAP EME - 11 .. I j '10,' 4) , ,
-h^
4 I n
.- /-bCEO
; 5 Q+'_
2 n .,, r-i & FIGURE 4-1 EEAM IMPACT MODELS USED c..
~~~
IN'GPE' ANALYSIS
. .s Mutech
~ ~ - - . - -
. . . . . - . . . 2 m .x a .. a m .. a _. , ;g g3; 3; GEN-67-011 UP = UP-IMPACT (OPENING) DOWN = DOWN-IMPAC (CLOSING) 2
~ -
~
$ IUP .
k. e. (u
. n '- \
5
- \ y
.' \ Nn
?
v J,
-w .
i
\ \ $ = - 'DOWN '
1 [1 - _x s, v, y, I l
} l I l w Q 1 / .
~ j f f D k -
1 j g :
/ !
,-- -U ,
c.
. ..' i y.UP . ,
l - 1 y N' - 2 _ f, a -
- s. l, l .:.
F *'
- DONN .. _
.' ...,- t 1:i ;!
l , ; . ~C 3. S ll l 4- , j FIGURE 4-2 3 GFE DISC AND VALVE EODY STIFFNESS AND l DYNAMIC MASS DETER.MINATION MODELS c:. .- .-. -.
~
4-7 nutech
......-....;-. . . - w za .
w= - :. .- s-w k
! \
s GEN-67-011 1
.L
- T -
a. A e 6 ~e @ -
~ 1. 5. . ' ,
1.25 1.00 f P G f \ n . as . 5 - G .75' ., z U
.50
[N 3 z O w \ s-j
.25 j
/
\ pg .
$ D I, l
.-% / '
x ,v - x p" o 0-o \ / h
.25 s <
s ( -
> .50 g
.75 ,
- 1
- 0 0' L 5 6 7 8 9 10 .
2 3 4 , O
~
TIFE (MSEC) A'
- T. "
- FIGURE 4-3 c. . -
GPE UP-IMPACT ANALYSIS DISC (3EAM) NODES DISPLACIMENT HISTORY e .- - 3-8 nuteCh
.. . . . -.L __ .. . - , . .- - - - . . . . ::.-- :,: ..- . c.a . . . .
4 GEN-67-011 , 3 . 6 '- , i i
.(
3.2 -
,. 1
/
2.8 - l n .. _l
-L w@
c 2.4 l- . k ..- Q W& - 7 t ' - 2.0 - g
= H /
~
f f m
- 1. 6 .- -
1
~
~
' ' l
~ I 1.2 .
2 #
' /( '
c *S 17 r.: d N J - % ~ 4 i
/ '
I' J i 4 0 - i I l 7 8 9 10 _4s, 4 5 6 2 3 O 1 - TIME (MSEC) 4 ..e
- i. J .c -
/. 2 .
1 l FIGURE 4-4 GPE DOWN-IMPACT ANAI.YSIS DISC ($21M) TODES DISPLACEMENT HISTORY nutech
>-= _ .
, :::,; - -- - - - - - - =
t- _.,==,g--c.;~22.,: ;
.l o 'h i
,h , 4S i l* . ,! I 25 Ks1 I
^
r. i ! ' ! 50 Ksr l 12s nst - 00 K51 , u o
- 's
\
r
/
Y
' \
O KSt 1 \ { ~
^ \ 50 KSt #
{ i i FIGURE B.3-5 !. O g GPF. PA!l.ET DOWN-IFIFACT STRESS CONTOUR Pl.0T OF
' l H(D flAXI.tlli.tl STRl!SS AT TOP SURFACF. . .
IO , 7 : i i
.. _. 6 4 .._ . . . . ,
e Max Principal Stress Top Surface O M: Principal Stress Mid Surface
- Min Principal Stress Bottom Surf ace 150 -
100 - - r 50 - n m C - 0 y . i 6 3
- r. .-
12 2 4 6 8 10 w Distance Frc= Centerline (Inches) m l ) 1
-1C0
-150 -
FIGURE 3.3-6 GPE PALLET D3WN-IMPACT PRINCIPAL STPlSS
~ DISTRIBUTION ALONG SECTION FRO *. PALI.ET fESTErTO ' IMPACT POINT (SECT 7.ON A- A)
CES.57_cig 3.23 nutec1
.I.
- s. .
~
i . ., - A- - 125(SI y 100 KSI ci, - w 75 KSI- , ,-i 50 KSI' is
% 25 KSI 1 __
~ .
( p %
/ *
! f k- - 0 KSI
% N i
- N
' J .
* - t
- g.
' [ 5 KSI . .. .
~
l l 25 KSI . . l .
.s. a i .
- t ..
c)
. A_ .
p1 w (
.r.a.,*. 7 '
- PIGURE 5-6 e
- . .o ,
u U , t..- CPP. DISC UP-!MPACT STRESS CONTOUR l'I.0T OF f, , , C ..
~
e l ed MAXIMUM STRUSS AT TOP SURFACE g , O 1
- J
. (,
__.t i
, .l g za
/ .
jk
,24 n< nili n g Str-ss (tx)-
N $ : S 20 i 16 3
- p R 12 -
I i v4 n " , V i kl g ~
'V
.. ~ -
nn (F2
/ )
Dir cct : tres 0 M ,.~ O l , .a _ _ _ Benling stre s (M ') s , t .
-12 1.00 1.25 1.50 1.75 2.00 2.25 2.50 0 .25 .50 .75 J
1 Time (MS!!C) ! FIGilRE 11.3-11 DiiTAll,ED lilNGE MODEl, D0lfN-DIPACT STRESS RESULTS l 3 l MAXIMUM STilESS IN ll!NGE EAR C ? c+ (D . O or . p
l I
- 't
_s *
. 2 t -
s A 5 I
=/, :
?..*2 \~ :
@Q .* / : ,*, ,\ ,\,e\" I I I l
.
- s l ,l l b8 3 I
8' -
- e
,\s h I
i
- /~
\
/ @
t@ h
.=
FIGURE 3.3-7 , CRITICAL STFlSS PLANES FOR COMPUTING PALL.T . STRENGTH RATIOS FOR D0hW-IMPACT r; .- _ . . .
- 3. n nutech Cn-o w .
. - .. .- ..-.;..-...... . . . . .. . . .:a.. .... .
+
- GEN-67-Oll t!.Ct
~@
e.o a n ..
- as
- w
- s~t- .
e.g n ,
= ,
g v n w w "\T
- .! is ,i , ,
e i n
** i a m se y ,,' -l t .wl u p .
. j se .
-2.. *
- n n ., !
, .i = t,
~~
" u
-=.- . ,
M M g
# " ~
4.1, en
*I.
4.4 4.A is.4 4AJ 4.s 4.9 880.'@'
- C.Pt me.a.at segactt C.'14
.@ . e,-
FIGURE 7-1 ' . .. . -
-~~~
CRITICAL STRESS PLANES FOR CO".?ITING
- DISC STRENGTH RATIOS FOR UP-IMPACT -
c .- . 7-3 DUteCh
P GEN-67-011 ,t TABLE 7-1 Disc /?alle Strenr. h Ratios
- SHORT TERM 3 ..
FSTF FORCING FUNCTION FORCING FUNCTION. l J DOWN-1MPACT DOWN-IMPACT
.J- UP-L'CJACT 4~ " (19.59 RAD /SEC) (8.04 RAD /SEC) e- .
(16.02 RAD /SEC) .' Disc Section' .36 .15
'-- .20 (1) * .
.62 .L .25
'. .36 _...-
I (2) .52 .21
.24 (3) .32 .13
.20 (4) .14 .06
. 19 (5) .
NOTE: . ten forcing 5metion.
- 1. No up-i= pac predicted with shcr:
l : , t* J J . , 1 . 4 . h *%.
- .?
* . ==.
,. .:.J
) e i I .a e t*; . . -n.. G 7-5 nutech,
- , _ - - . . -- -- - - , _ _ _ _ _ . , - - _ . . ._.,,_v ,-...---,y-. s-- - - -
l I 4 . sj> . . . ll
- U t
9.'
=
- s. _
T Aftl.E 7-2 [
, (,, '
Illny,e Component StrenP,th Rattos 8 e b ' ' Sil0RT TERM
'
- FORCitlG FUNCTION FSTF FORCIllG FUtiCTIOri DOWN-IHPACT (19.59 RAD /SEC) DOWN-IMPACT (8.04 RAD /SEC) f U P- I ttP ACT (16.02 RAD /SEC)
STRESS CAPACITY STREllGTil STRESS CAPACITY STREt4GTil CAPACITY STREttGTit (KSI) RATIO
; TYPE OF STHESS RATIO (KSI)_ JL RATIO g{
JKy( Jg_ cottPotlEt1T STRESS 0.26 110.4 0.63 28.6 110.4 78.02 110.4 0.71 69.7 0.1 89.7 IllllCE ARM DENDittC 0.2 89.7 DIRECT 0.4 89.7
'.' 49.9 108.5 0.47 o.
108.5 0.71 .121.6 108.5 1.l4 46.6 tiltlGE SilAPT BF.tIDillG 73.2 '10.1 46.6 4.1 SilEAR ' 9.5 46.6 84,8 1.7 84.8 T.I 84.8 4.1 . DIRECT 8.9 110.4 0.09 0.21 21.8 110.4 0.22 DEt4Dit1G 22.6 110.4 89.7 3.6 89.7 litt4GE EARS 4.5 89.7 8.7 , DIRECT 0.87 28.2 84.8 0.36 64.8 1.18 68.6 84.8 46.6 tilllGE ARH DIRECT 75.5 . 46.6 6.3 36.2 46.3 15 5 STtil)$ SilEAR , fl0TE:
* - llo up-1:npact predicted.wlth short terra forcing function. n 6
vO C. . 0 1 (D O , 7 ~ es t
y a ._ _ _ . - . - . a -- .r m . a ~ -- --n=-. -- _ w w w ; 9.6 STRENGTiiS FATIOS C:=pe nen: strengths for the vacuu: breakers were computed u:ilizing the Von-Mises =axi.=u= energy distortion criterion to
- cycluate the ulti= ate strength capacities. According to this crit erion , failure occurs when the strain energy reaches the ulti= ate capacity of the componen: section. Accordingly, the interaction equation for general loading is: ,
( ( _)2 , ( u_)2 , (_ u )2 , ( u
)2y 1/2 - s:rength Ratio u
where: M, S,T, V- co=pu,ted bending =o=ent, nor=al force, torque, and she ar force * ~ Mu = ulti=a:e bending = omen: assu=ing Sy at the neutral surface and S u a: the outer fib er Nu = ultimate =e=brane capability assuming S u through the section Tu - ulti= ate torque capability assu=ing a shear s:ress equal :o .555 u through the section , vu - ul:Lcate sheer capabili:y assu=ing a shear stress eque.1 :o .555 u through the section I0r all co=ponents, ulti=a:e capacities for each = ode of loading Vere developed based on the =aterial properbies fro Tables 2-3
'nd 2-0 =u'_:iplied by she S:: air Rate Factor.
05 - 5 7_ g -- 2-24 , n a i + n m,
TABLE C.3-1 STRENGTd RATIOS FOR G?E 24" VALVE . ULTIMATE YIELD TENSTir STRENGTd MATERIAL STRENGTA STRENGTd RATIO COMPONENT s FALLET SA240 TYPE 316 22.33 ksi 75 ksi .27 (SECTION 3-3) SA240 Tf?E316 22.35 ksi 75 ksi .32 EINCE 3?.ACKET FALLET HINGE ' SA320 BS 30 ksi 75 ksi .76 3 RACKET STUD i t
!VOT BLOCK BOLT 30 ksi 75 ksi .35 1
SA193[B8M' _
?IVOT BLOCK SA479 TYPE 316 : 30 ksi 75 ksi .13 SA479 TYPE 316 30 ksi 75 ksi .28 -
EINGE FIVOT SF.AT- .a 1 SA320 BSM 30 ksi 75 ksi .503' i f. NGE A:LM STUD I: 75 ksi .06 l H:5GE ARM SA479 TYPE 316 30 ksi r;_ . .- .
- ,. ,7 - 01 S
*-o =
C.26 L Flu teC 1
j.
^
UNMODIF18 TEST PROGRAM I PURPOSE OF TESTS SHOW LINEARITY OF ANALYSIS CONFIRM THE ACCURACY OF ANALYTICAL RESULTS WITH A SIMPLE DROP TEST 1DENTIFY ANALYTICAL CONSERVATISMS 8 TEST SEIUP 4 TEST RESULTS e i 1 C .- -.~ - -- 17 - 5/2/s2 nutggcb
, - - ,,-w-y- ,---
--iy ,- ,,,y. -
p ,m,y,% --.- . _ - -_ - ,.,.---. _ _ . .-,-, ,_--,. . . ,ye ,, ,,rm.-- , - ,-- -.,----,,--+-m _
c - , j 1
~
1 l i TEST SETUP I SIMPLE DROP TEST e 10 * , 20* , 30* , 40* , 50, 54* 8 TEST INSTRUMENTATION s STRAIN GAUGES e ' VELOCITY PROXIMITY PRO 3E (USED - TO MEASURE IM?ACT VELOCITIES) . e IliCLIN0 METER O 9 I e U.; . .- , . _ _ .
~~ MUI Q 5/2/52 _ _ _ _ _ __ _ _ _ --
. _ . . . _ . _ _ .. ..______.______.m_.- ..:_e__ _ ..e _ - . u _
.. 4 m-
=
C U w
=
. _=
H 8 8 a a W A > 3 m C e k w e m z
& O '
O 1 s' D a - 0 z e o
~
w x b W 5 . z 1
= .
m
= -
2 , o
< s. a l
> w z c:
- o b
- < ar>
H u-d w e E z 5 x, = =
- > m - -
a e: a $ U O C
- 9.;
c g o l > 2
= w
< m 2
5
~ s = a b w w =
w W g $ C " ~ t>e r f -g1._ m vXC JCO
- we=
>m, 4 .
s - a a 2 e m. _. I C .-
- _1e_
nut _eCh 5/2/E2 -_ - . - - - .
m 1 i l aeea
- e s
e . >- e ~ o m
" o i A w
I
~
N - m o m
, / e a E f A
~'
[ /
;g "-
w
= -
/ O m v ,.
_ z= u
/ . <
. n, z m
- =
S =
. ? - m N_ &
m m 4 F O-w w _
.a
\\ s s
a
< ~
=
< c.
a
. c O ~
o -
=
_0 m <
- u e O
. m a
* ~
_ e. .. a n nutech --
.. m w
O ,in * .
'd i8 - -
13 i
\
rsAxtrtoes s rtESS .^.R.EA nie s,,s,1 - l is Himt EAn is litu G E pia
O
-'4 ~
f,i
. . . h',$ .
-+- A f _, _
h y 3 husuiNG y
.__4'J . .
~
f.T 7J~
.r tg ...t l .,4 SrcrJoff A.A ~ -- -- -
["'"0 E ^* pm SEA,T MIMG -
. FA - -r o
/
/ -h As T f . pat.1.ET .
hsAWit11AM Sr*4rss \
,. . A Rss ~h- s l t
~ '
I i. i F
,LOCATI0li 0F SilAFT AND lilNGE STRAI N GAllGES 1A, 28, AND 2A, 2n !
3 C eu -
-(9 .
IO ' IT ' (
.m m. _ : .c.. . z. * ~ ~ '- ...., _ _ _
~
Max Principsi stress Tap Isrface
-h- Test te. sulks I
w- ,
- I -
,a - -
n- . g
#* i i i to 1:
. tista.=cs firs Car 2871188 (I2:1883
- 1. STRESSES ALONG SECTION A-A .
- 2. IM?ACT VELOCITY OF D.0 RADS /SEC. -
l
. cn r?. ~ :cw.:m=
ra:x::rn nn:: ::nI:nT:: 5 n:x:
- t=: , :::: w.1 : :n c n:n at=::= un I
{ W..- 1 4 n.. ' n u t. _e C_n
= u' n_ _ c _ - - - - - - - . , _ . , - . . , _ _ _ _ _ _ _ _ - - - - ,rm-- -- -_
- .__. m ' . .= k- - ;ig.L ;R 4:.% t-
. - ,i . . . , _ L ,,_ .
Plot of Sending Stresses in Sht!: ygpgc7 yt o a rV (fafJ/. REC)
.w: %
- 33.. :CD TZ5:
2.4 4.0 5.5 5.9
. 0. 9 1.6 3.2 ,
40 - , 9 t-35. 30 - 5 25 - R . E . S 20 - s 3 15 ~ (x. s.
- . )
9 Test Points 10- 3 Analysis Point A a - 0 10 20 30 40 50 60 70 ANGLZ (Degrees) t _ _ _ . _ . . 2 r 7-
- nu t._eCO O
... .. ! ~ i;. . . . .
n S.. . . . , : . . . .WML' .e' e.~~ *h $fe.**.s h L'*4 2 % & 3' W "a 7l'- 5_ , s
., e .
CPINING ANG I (DEO?"c:) 12.7 24.5 36.2 48.0 60.0 71.5 12.5 a
. L
- ED;GE 3.d5
~
10.0* .
- 7.
- m
.X .
m 5;C i Vg I L c: b ! m ! g e 4 . .e.-
=
l .
~
l t
=
0-:
- 0 1 2 3 4 5 6
~2'.FAC" *Id~~C (F.AD/EEC) l
,, , . . y.S _..e. .w l a f . m.
-*- COfe.E OG'D ~'IST ?.E50~.5 (57.55) l l
i r;.. . _ - _ . - .
, t 2P3 n u pLvC,O LaoGema27ts m, -
- = :- - . . ;x.-.:.
,.w. .n CO rd C_to.c;,1 eN s..-. '.
~ *
. . . . ~
~
p'..~. " ..
- p/ .
N * * ~ 6 9_.- . h t . \ s:. A s M T '2.0 7-Ah[se.c. f.ym ' N u s s s. " C=)N f' W D 8Y TFC n j seL
=.t_mm c_
- - 'OP ENsNC, ; t%b C Lo s i Nc_, WP h i *"""
em m LA swu.a w. w = s
'~
2.5 5 \A L.T-S,
@ GE NE.GA Li cE-
- E ObD\m NAL_ N hell \l 3
'is, Ey~o N D 2o EAbth$ S GetsN B E)' P ECTs b 3.s cecu s e_
)
o p;- c ( T-r E.e %'- 5 &NQ 9 rtv Re c_ 9 L k s. M hvG_6 CF M Ab c.. . . . W
r .
'~...~.- - .
~ ~ '~
- ..l.::... .. *{ S O N U lb.. ..h~h~ ~.. .
1 l ELAS TI C
' 7; i
/ //./l lSTEeWGT.B///// L.\ m T' l // /
/ /
!/ / / It !
s
/
/ elastic -PL As7/
- /
U / n .
.7 -
/
4 D ; 1
?,
l go 30 o lo Irrqast Yehcilf (gul./m . )
= e e' k v %. <=e
~
._}}