Gas Turbine Comp Failures

TU

IN

resonance)

re

EA FA FA migration loose b la la d p ro ro b e m mo g a s u rrbb in in e

C o n e w eeaa r

righ side

10

Aerodynamic Force

Forc on shortene hook-fit

11

0.14 0.1

I.OEMlimit

0.02

12

13

Lockin ba

14

15

point 16

17

18

S im u Lengthwise

19

ng

Flow disturbanc

hi

will

pe revolution stimulus wh lead to ailure

very undesirabl

ca

conditio

20

p ro b

21

vanes.

22

Blade

n g a ss em b l

Square base vane

23

Blade

mb

ms

Compressor

ot si area

looseness 24

me

25

me

26

wi

me

27

wi

me

28

wi

me

29

wi

ot

pr bl

protruding shims.

factor "Q"

30

Bl

me

So

Mo

Mo

me

·10

nodes 31

Mo

S-

FA R1

Bl

St

wi

r r ------

4 0 0 0 -

g,

ro

§ 1 0 0 3 0 0 0

2 0 = 3 0 0 4 0

O ~ ~ ~ ~ ~ ~ ~ ~ ~

. .----------

1 0 0 0 0 0

8 0 0 0 0 .;:; Co

~ 1 0 0 6 0 0 0 0

1 = 2 0 0 0 = 3 0 0


4 0 0 0 0

0.2

0.4

1.2

1.4

1.6

Incre~ses with van

ce

(\~ ~b

__ Stre ~~ to protru -........, -...

~rePits-Wet 1ea

10

20

30

'-......

~I

80

34

90

10

vanes

blades

protrusion.

OE

mp

Sq s ho w in g a ss em b l

Sq mb

Or en at on

acks prevents thermalarch bindin 37

wi

we

Pi

Pi

h ro u

en er of sh

e ta in s b o

Sh

e ta in in g

wea

ar

e l m in a e d

b ec au s mo

b la d

me

stopped

wi pr

e n p ro t

s io n

nd

be at on nt

ow

am

Oh

Blad damage from upstream objects

me

mp

Vane pinnin Newshim

'. heav

th

fretting

wearonvane tw ho ks

hooks

me

mp

Newshim

tw ho ks

corrects heav fretting wearonvane hooks 41

lo

ib ....

'\

42

ma

Wo

44

Wo

Wo

•...

We

47

OE

S um m a

Be

protruding an liberating

Ot stimulation. ef ic ency of th ga

CF

urbi

co

ress

st

51