Acc ons
1 Quasistate
2 Harmonic
3 Transient
4 Random
Addistruduralrequements
thermalloads tempgradients shockloads pyrotechnicbolts
loads tanks
groundhandlingloads
stiffnessrequirements
pressure
QUASI
STATICIDADING
quasistaticaccelerations
load
included
gravity
actingonslc
cog strains stresses
accelerations nodaldisplacement
the Ex
ForTransientSineandRandomloading weusetheirpeakacceleration
this samemethod
using
Q
SLoadingExampter P t
QQ.ii.IE't
htt out c ii
m
E 7i F 45g'm 44,145N
he 09g m 8,829N
Mr
9 7.31Mpa M 1 1.5 13,245N
2 Oz 225hPa Mz 1 3 26487N
, TRANSENTLOADING2
ShockAccelerationProfile
caused
bystagingpyrotechnicboltsetc
toocomplextorepresent as mathematical function
impossibletotestrepeatedlyandexactly
K
HIEI x
put
Response d a systemtoanarbitraryinput toimpulsesequence
responses
xH ogHTiptudt
impulse
response
consider mite'x kx P8Lt withFlandresponse
glt
m
gtigtkg
stt finfotfomgtigtkgldt
tffotf.to i
ftp.ffn dtliffotmglt
g
ftp.fjcgdt oliffotokgdt
CO4 O conditions
mg 1ojlotI tmglot boundary
solution
general
eswntfc.co at casincwaty
gltt
i
boundary
Ebw sin particularsolution
conditions i
gct Mwd wat
we attend.no inikallyknow1hedanrpigorlhenaturalfrequency
Damping Q ztg w usualvalues d 10 or 20m50
, Shock Response Spectrum
ii
f sinfotia.IEE
T
xttl fotpthgtt
tld
A xlt
waf.IE t
sinlwdlttxsinlwhd
xltt fjptlg.tt tidT
where
wd7sinwat 2wnwdcosCwatD
gx.lt mIwdebwntfl92wi