Page 129 - Improving Machinery Reliability

Machitwry Reliability Audits and Reviews 101

5 SLBP ERGS - CLAD+ HILS (HAXIMIH) - K) SEAL EFFECTS
WALANCE AT SlAlIoH No. 13 - HIDSPAN 4.822 IN-02 AT a DEG.
VIBRATION AT STATION K). 22 - OUTBOARD BEARING

5
s 4

s 3
v)
-4
w
S 2
L
I
e e "=- I e88 ! JJ 2880 3800 4880 5ee8 8008

ROTOR SPEED (RPto
Figure 3-16. Calculated unbalance response at outboard bearing for API unbalance at
midspan (no seal effects, maximum bearing clearances).

5 SLBP ER6S - CLADmE HILS (HAXIHUM) - UORN SEALS
UHBILANCE A1 STATIOM NO. 13 - HIDSPAN 4.822 IN-02 AT 0 DtG
VIBRATION AI STATION NO. 22 - OUTBOARD BEAZNG
2

1.5
0.
.4 Lo
? I
w
2
-4
$ .5

e leeo 2ee8 3e8e me 5808 6088
ROTOR SPEED CRPH)
Figure 3-17. Calculated unbalance response at outboard bearing for API unbalance at
midspan (maximum (worn) seal clearances, maximum bearing clearance).