ML19343A203

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Forwards Monthly Progress Rept for Aug 1980 Under NRC Licensing Case Review Assistance Program
ML19343A203
Person / Time
Site: Grand Gulf, Susquehanna, Summer, Farley  Southern Nuclear icon.png
Issue date: 09/04/1980
From: Bampton M
Battelle Memorial Institute, PACIFIC NORTHWEST NATION
To: Bosnak R
Office of Nuclear Reactor Regulation
References
NUDOCS 8009160407
Download: ML19343A203 (18)
v • d • e


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(# 4 OBaHelle Pacific Northwest Laboratories P.O. Box 999 Richland, Washington U.S.A. 99352 Telephone (509) 375-2812 Telex 15-2874 4

September 4, 1980 i

i Mr. R. J. Bosnak, Chief f Mechanical Engineering Branch Division of System Safety U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Bosnak:

, LICENSING CASE REVIEW ASSISTANCE - 300A01419 l

i. Enclosed is the monthly report for August.

Sin erely, n

/jkC C- & h M.C.C. Bampton, Manager Structures and Mechanics

'MCCB
lk Encis.

cc: B.L. Grenier,- NRC.

f Xoo3 s

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  1. ....,o far u

NRC LICENSING CASE REVIEW ASSISTANCE 30ll A01419 Monthly Progress Report No. 13 August 1980 Program Manager: M.C.C.Sampton Principal Investigator: G.H. Seeman Total Funding. 5200K Costs to Date: $177K Summary The final report for the Farley piping analysis has been completed. Analysis of the Susquehanna and Grand Gulf MSRV discharge lines is continuing.

Acccmolishments and.Significant Findings The final report for the analysis of the Farley mainsteam line has been completed. As soon as internal review of this document is ccmplete, it will be submitted.

Force time history data for the Susquehanna MSRV discharge line has been converted to the necessary format for ANSYS. The MSRV discharge resconse spectrums have also been converted. With completion of these tasks, the analysis should be completed during September.

Due to the similarities between the Susquehanna and Grand Gulf analysis, the level of effort for Grand Gulf has been limited to the development of :he model. Now that the recaired ANSYS inout format for the data has been determined, this analysis should be completed during September.

A comparison of the PSAFE2 and ANSYS codes using the Farley main steam line has also been C0mpleted. These results were :ent to Mark Hartzman. A copy is attached for your information.

A small study has been made into the method of combining dynamic responses.

Currently nodes may be combined in any order; nodal then spatially,or the inverse. This study shows that combining then saatially and then modally always yields ecual or larger results tnan comoining them modally then saatially. This study is also attached.

Anticicated Problems None Accomolishments Planned for Next Month Analysis of the Susquehanna and Grand Gulf MSRV discharge lines should be comoleted. Review of fatigue calculations concerning CBE and SRV discharge loads by General Electric will be reviewed if necessary.

s Man Hours Per Task

  • Grand Gulf Sumer Farley Suscuehanna 24 0 74 146 Totals are for reporting month only.

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GH5eeman S/26/50 CC"3INATION CF CYNAMIC RESPONSES There are two Ocssible ways of comcining dynamic res:enses wnen

' ing :ne Scuare Root Sum of :ne Scuares (5RSS) me:noc. Resocnses can be first ccmcinec mocally and Onen spatially (RMS) er s atially and :nen modally (RSM). If :nere are no closely s: ace: mcdes, i can reacily :e shown tha :ne two ways produce icentical results. When closaly spaced mcces are present and the procecure outlinec in .e g. u.uice is2 are felicwed, the results are no always identical. In f ae , the results frcm ne RSM metnod are always greater : nan or ecual to :ne RMS me:Poc.

Proof of this follows.

Assume :nree natural fre':vencies witn :ne firs: wo closely s:acec Frecuency Res;onse w, X Y. I, i 1 i

- lose X.;

y -

we - .

V w; X:-

Firs: comoine resconses mecally :nen s:atially (RMS). Since :ne sign of the respense is arti:rary wnen coirg a res:ense 3:ectrum analysis, all values are cositive numoers.

-'/ c o

,v

, r( i i

v

^* - X9 i s

^v ei i .

9

,l/2

. i v.-- t,

.o.y  :(

- v.)

v.3 ,

. ,i,,. c

^. . (, -c >u_ ~ , ' ;i, o n e ,3 :o i

.RM.5 = R x -R.,-R 1

- /

c -

T-v c- .-  :  :-

.o u..t,-

. l I. X. -

X, i a- ';  !',

V. .

. - . ', v. i F  ;.

_ st - - --e \~ _ -t

!s

.GW ComCine :ne res3cnses s'atia,lny . Fen moCaity t..bys 4

i C.u..

GHS 2*0 ICP w/ .s/ vV 2

- , , 9-R 1

=

I. X ' - Y ' - I ~ l1/ 2 1 1 1

, , 9-1/2 P

e-

=

tX"-Y'-Z' 9 9 i_ ~9 ~ - -

, ,  ;~1/2 R1 = X'-Y~

,2 3  ?,_I

? ~II2 RSM = (R1 - R,)2 -

R-3-

f

. snoulc te notec :na: using tais me-hoc of combina-ion :ne sign of :ne res:ense coes not matter since all responses are scuareo o 9 9 9 1/2 7 0  ?

+ v.,'* 2 )I/ 2'2 RSM = X,' - Y ' - 7 -

X.2 *7 9 , J-X V." -

_7-

- n 1 .i c c . - _  :

Now finc the difference :etween na cwo me:nocs, p ,

RMS' - RSM' =

? e

( x; . v

^9~ )2 ,x, J

. ( y, &

v. , ); _ v.,; _

s t, .,

t e; j . __-

- s- e o ,/o

o i - - -

_ y, . 7,-

. a,'

v _ v,, c . ? ,-7 T. i , 2 ,. _;,v, _; -

e

_y

_7 --

.s( ^vI i i c  : m /

.i  :

Ex;ancing ne exDression and removing like e -'s yisics RMS' - RSM =

- - - , , 9 X,# - 2 X, X,, - X ' - Y,# -

2 Y. Y- - Y " - 2,' - 2 2. 2- '-

i i c c i  : i i  : c r  ; e -

e e -

. t v, 9 _ y.

In t i i

- 2 X.

+

V.."

i

-.'V/41 -;

' ,X,

- c V,-

w

- ', s J

T  :  :

X,'

- Y

- 2,.

Ccmoining like tems leaves RMS'-RSM'=2(X.X, - Y , .; - 2.2,) . . . .

3 .- *p,

[

v - .y _ , 6

't

! l'av - _ v- - --) .

,g a - _

,- - t .. . .> s c. .

e a v

t c,..

u. .::

-:- a ,o oun a .

Dividinc. born sides by 9 9 9 3?:7- 9 9-1 p-9 v

-(^1

. y 1

. z 1' -) (x 29 . y 2

2) gives , 9 PMS ,RSM- E

  • *'/.  ?

otv

-s e1 2 . v.1

.7 1)-

(X,~ - Y,2 - --, 2)'#2 (X) X g - Y) Y2*II Z) 2 1

o 9 e 1> /

  • 9 .i/ -- -

(v41 - . v.1

. c,-)

i t<x,' . v.,7

,i o e

.or "tSM 2 RMS' :: :e trJe, ne f:11cwing ex:res:icn mus: ilso be rue X X, - Y. Y -

Z I c i 9- 1 :: , , -

8/7 9

v 9

- 7 - 2 V -

?

7 - .I'/< ;

7 (X1 'T '1 72

'T 'T  !

The 00 ;;r0cuct of two vec crs :an :s e.xoresse in ne following way y . y y 'r

l. .'c-y* . itd e s= is# 1 X, e i 7.X 7. v. e

. v. 57

  • Tr. j e. jg a. g g c a.t.*.. g ]
  • g. *. .*. a. a ..m.

. r.= , e. .. *

v. ...m. a. .. ,g a. e,4.

.  :.e a, :. . .n. a. .,.4 s pa.r.w .me ,,. J. o. . ,s, 5 a4

. .-. .-. -2 4. r o.

4 v.

=..=.a. .s e. . ; ] s. = . o. .w a.a.o- . .n. a..n..

( $ $  ?, !

" " " =

"l* y V O. y V

1X '9v

.A . .

s .7

';i

'l '*'

  • X - V.y-

\ . -

" ?I ?.-

..e

\

  • V l CDs -

V9x' -V ey 9

,..4 -

4. . . se ...

- , s m ea4... -s,v

,an ~ re

?

(y}x _ y*y- i.

.i, -

i

g s

.; .y.

  • 0. v. . y??.. !

yie,10s

/.

u.

3/25/30 V, , V 7. 7 - V,y V,y -V,V_

a . . .. 4 9_

2 p  ? 9 9 9 9.'/

(V)x-V)y'-V)7)t/4 (V 37 " '

-V 2Y ~ v2 '~ l cos 5 is always s i, nerefore X) X 2

~

l Y 2

~Z 1 Z2 3 7 ,1/2 9 9 7,i/2 '- '

(xi y i

'l . . ^2

.y--)

i ' 'l ,

o o anc RSM' is always greater : nan or ecual to R.MS' l

O 1

i i

I l

l h___

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