UNDAMPED FREE
VIBRATIONS
UNDAMPED FREE VIBRATIONS
UNDAMPED FREE VIBRATIONS
IMPORTNT
DO NOT FORGET
THE LINAER KE OF PULLEY
UNDAMPED FREE
VIBRATIONS
UNDAMPED FREE VIBRATIONS
UNDAMPED FREE VIBRATIONS
UNDAMPED FREE VIBRATIONS
FREE VIBRATION WITH DAMPING
(EQUATION OF MOTION SE RELATED
SARE DOUBTS CHALE JAYEG ISSE)
FREE VIBRATION WITH
DAMPING
for guns critical damping
is used..
at time of recoil damper will not
be used( ie from angle 0 to (pi/2
)..after that velocity will be zero
and postition will be 1.5 m.
prelims
FREE VIBRATION WITH DAMPING
prelims imp
prelims
FREE VIBRATION WITH DAMPING
easy but important
weight ka moment spring ke moment se pahle hi balanced ho chuka hai, jaise mass main d alembert lagate
waqt mg and spring ka k delta s nahi lete
FREE VIBRATION WITH DAMPING
important
FREE VIBRATION WITH
DAMPING
imp
compare things with
linear formulas and
write equivalent
eg, mass= moi of
disc
stiffnes= linear=
torsional
prelims
FREE VIBRATION WITH
DAMPING
FREE VIBRATION WITH DAMPING
FREE VIBRATION WITH
DAMPING
prelims
FREE VIBRATION
WITH DAMPING
FREE VIBRATION WITH
DAMPING
prelims
one side value
of amplitude ka ratio
lete hamesha..
FREE VIBRATION WITH
DAMPING
if ratio is ot same
for consecutive
cycles,, take n
cycle approach
okay..
FREE VIBRATION WITH
DAMPING
FREE VIBRATION WITH DAMPING
imp
here you need to take
moment of mg
also......bcsmg kahi se
balanced nahi hai phle
se jo cancel ho jayga.
FREE VIBRATION WITH
DAMPING
prelims
alag se dimag mat chalana bad main
ki ye kyu nhi kiya etc..jitna marked h utna karo
chupchap.
FREE VIBRATION
WITH DAMPING
imp
FREE VIBRATION
WITH DAMPING
imp
FORCED VIBRATION
WITH DAMPING
VIBRATION 3
2.86mm
tan ka graph dekho 180
degree pr repeat hota hai..
-7.289 d
172.71d
rad
VIBRATION 3
tan Pi rad par repeat
hota hai.
FORCED VIBRATION WITH
DAMPING
VIBRATION 3
yaha galat hai..total
mass 125 kg hi
lege..k=51467.73 N
AYEGA.. QUe MAIN
PROBLEM HAI 9.81
SE DIVIDE KIYA
HUA HAI..NEWTON
MAIN DIYA HAI
KYA MASS/
VIBRATION 3
FOR VIBration isolation
we operate in w/wn > root2
w ki value jyada k liye to ho hijayega,.
check w ki kam value par karege,,
dynamic load on isolation
system wala to yad rakhna
hai..for support motion..relative
amplitude approach
3189n/m
VIBRATION 3
VIBRATION 3
VIBRATION 3
DIRECT APPLY
ABSOLUTE
AMPLITUDE OR
TRANSMISSIBILITY
FORMULA..
FORCED VIBRATION
WITH DAMPING
VIBRATION 3
5.95 mm
DONE
IMP
VIBRATION 3
VIBRATION 3
IMP
VIBRATION 3
SKIP
VIBRATION 4
SIDE WALE JAISA HI
IF SHAFT DENSITY IS ALSO GIVEN..
TAKE MASS= ROTOR MASS +
(17/35) RHO Volume of shaft
E Ki value kg/cm2
main hai to load bhi
kg main daldo..yani
mass daldo sidhe..
26.12 N
imp
VIBRATION 4
57.54 Mpa
VIBRATION 3
FORCED VIBRATION
WITH DAMPING
problem copy
this is wrong solution here
this type of one question is solved in problem copy ese pyq..generally
question will come for vertical shaft ..horizontal main lafda hai..lekin
agar horizontal ka question aya bhu to ye method to nhi hoga jaise
isme kar diya hai..ies master ki booklet wale jo question hai unka
reverse karege....karoge to ho jayega..