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I - 1 .-2 ---- ~ -...- -.&- , . - . -. & . , . . . .
NASA ca-irrsrs-4 - Part4of4
A COMPILATION OF SPACECRAFT LOADS DATA
FROM
&OUR TITAN CENTAUR LAUNCH VEHICLE FLIGHTS .
.. . - V O L ~ A E n ...: . - J
. .
! VIBRATIONTOWER SPECTRAL DENSITY ANALYSIS OF LAUNCH AND MAX Q FLIGHT
Compiled by George Kachadourian
( b l A S ~ - C B - 1 4 4 9 4 5 - P t - h ) h COBPILATION OP 77-281 85 SPACECRAPT LOADS DATA f80B FOUR TITAN CEITAUB L ~ U I C H VERICLE FLIGHTS. VOLUME 2 0 4df]lNF PABT 4: VXBBATlOY POWER SPECTRAL DENSITY Unclas
% - 42479 ABLLISIS OF LAUNCR A N D M A X Q FLIGH'i! (General G3!2,5t,YtU
fiAsA ST1 t~jun $ INpUT Bwm 7 ,.;i" . 2.c
,I ', - _ -. , ., , , 1, -. !K,=-'
-. .-- L..,&.,-
Prepared under Contract No. NAS1-9100 by .
GENERAL ELECTRIC COMPANY Viking Project Support Services
Hampton, ~ irginia
for
rJATIONAL AERONAUTICS AND SPACE ADMINISTRATION
. - .
, . January 1 9.77
. . .
https://ntrs.nasa.gov/search.jsp?R=19770021241 2020-07-28T07:40:08+00:00Z
I .
NASA CR-144945 VOLUME 11-
VfBRATION PSD OF LAUNCH & MAX Q FLIGHT
SECTION 4
TC-3lVIKING B SPACECRAFT
Launch Date September 9, 1975
Contents
Coatents Description
Table 4.1 Data Analysis Matrix
Table 4.2 Instrument List
Table 4.3 Time of Flight Events
Figure
4.1 Instrurneht Locations
4.2a-4.13b Prelaunch PSD
4.14a-4.21b Stage 0 Ignition - TtO - Tt2
4.22a-4.29b Stage O Ignition - Tt2 - Tt4
4.30a-4.33b Stage 0 Ignition - Tt4 - Tt6
4.34a-4.41b Max Q - 2+35 a Tt37
4.42a-4.49b Max Q - Tf 37 - Tt39
4.50a-4.57b Max Q - Tt33 - Tt41
4.58a-4.65b Max Q - Tt41 - Tt43
4.66a-4.73b Max Q - Tt4' - Tt45
4.74a-4.81b Max Q - Tt45 - Tt47
Page - 1
Contents Description - Section 4 - TC-3 Data
This section presents Power Spectral Density (PSD) plots of the eight parameters listed below. A l l analyses a re of two second time samples.
i ' The data is displayed in the pairs of a two second time sample and its PSD I analysis.
The analyses cover the Stage 0 IgnitionILift Off and Max Q periods of time for the TC-3 launch. A matrix of time samples and analyses performed are shown here in Table 1. Instrument list and sensor location are presented in Table 2 and Figure 1 respectively. .. . -- - . - - . -
Parameters for Which PSD Analyses were Performed
Vibration measurements on the Viking Orbiter Bus
Acceleration of the Viking Lander Capsule (VLC) c. g. obtained through transformation of Viking Lander Capsule Adapter (VLCA) strain gages assuming a
Ta
ble
4.1
- Dat
a A
na
lyei
s M
atri
x:
TC
-3 P
SD
An
aly
sis
No
te:
The n
um
ber
s 4096 a
nd
1024 i
nd
ica
te t
he
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itiz
ati
on
ra
te i
n s
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ple
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er s
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nd
use
d in
pro
cess
ing
th
e data.
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1024
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1024
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& 4096
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4096
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ent Time
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ate
-
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IG N
o.
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sor
No.
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1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
Pre L
aun
ch
67132-67134
Stg
. 0 Ign.
- 1
67140.2-67142.2
Stg
. 0 I
gn.
- 2
67142.2-67144.2
~ --
- - pp -
-
Stg
. 0 I
gn.
- 3
67144.2-67146.2
Ma
x Q
- 1
67175-67177
Max
Q -
1.5
67177-67179
Ma
x Q
- 2
677179-67181
Max Q -
2.5
677181-67183
Max Q -
3
67183-67185
Ma
x Q -
3.5
67185-67187
4096
4096
4096
4096
4096
#I8
CY1820
I
1024
& 4096
4096
4096
- 4096
#17
CY1830
4096
4096
4096
4096
4096
#16
CY1840
1024
& 4096
4096
4096
1024
& 4096
4096
4096
4096
1 4096
4096
4096
4096
4096 -
- I
_
4096
4096
4096
4096
- - - - - -
4096
4096
TA
BL
E 4
.2
PM/F
M
T.
mR
Y IIV
STR
UM
ENTA
TIO
N,
2208
.5 MH
z L
INK
, T
C-3
, VMINC B
@
Ran
ge
show
n is
max
li
mit
. E
ach
gag
e w
ill
hav
a a
dif
fere
nt
ran
ge
dep
end
ent
on i
ts c
ali
bra
tio
n v
alu
e.
A.
Th
is i
s a
sp
ec
ial
se
t o
f f
ilte
rs
wh
ich
, in
co
nju
nc
tio
n w
i.th
dis
cri
min
ato
r c
ha
rac
teri
stic
s,
res
ult
s i
n
ph
ase
err
ors
of:
lest
th
an
lo b
etw
een
VCO
9
th
rou
gh
18
bel
ow
40
Hz
B.
Th
ese
are
tw
ice
th
e s
tan
da
rd I
RIG
fil
ter.
FMlm
CH
AN
NEL
19
18
17
16
15
14
13
12
11
10
9 4 :3
U
C
I U
$T
R
A
C Y
db
5
%
G 5%
G
5%
G
5%
G
5%
Lbs
5
%
Lbs
5%
Lbs
57
.
Lbs
5%
Lbs
. 5%
Lbs
. 5X
PS
ID
57.
PS
IA
533
ms .
N
O.
CA
886Y
CY
1820
CY
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~~
18
40
CY
1850
CY
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2001
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2001
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ER
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POW
ER
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TRRL
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UENC
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HC17
TZ I
bF =
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STRR
T =
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67
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