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TRANSCRIPT
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Copyright 2011, Toshiba Corporation. Copyright 2011, Toshiba Corporation.
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2.3. ( )
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90
OB OA
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2000
0.02
02000
0.02
0
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0
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2.
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X
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mE
dE
l
mE
dE
l
b
y
bfS
S
b
y
bnn
n
217.0
1.5
107.0
7.0
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Fs
Zs
Fs=38N/( mm) 4 2 m 12mm 3800N
fl
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Copyright 2011, Toshiba Corporation. Copyright 2011, Toshiba Corporation.
Copyright 2011, Toshiba Corporation. Copyright 2011, Toshiba Corporation.
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Copyright 2011, Toshiba Corporation.
dVStf c
)2/(4
)12(
DLcnf n
St
d
D
L
2
V
d
D
L
2
V
cf
nf
)( ncct fff
Copyright 2011, Toshiba Corporation.
A
C
D
L=2.75m
P
2(293Hz
1(98Hz
A
C
D
L=2.75m
PP
2(293Hz
1(98Hz
0 100 200 300 400 500[Hz]
19.0 m3/hr
23.4 m3/hr
27.7 m3/hr2.5
0-
[kPa
]
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2.5
0-
[kPa
]
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2.5
0-
[kPa
]
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0 100 200 300 400 500[Hz]
19.0 m3/hr
23.4 m3/hr
27.7 m3/hr
19.0 m3/hr
23.4 m3/hr
27.7 m3/hr2.5
0-
[kPa
]
-1.0
0-
[kPa
]
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2.5
0-
[kPa
]
-1.0
0-
[kPa
]
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2.5
0-
[kPa
]
-1.0
0-
[kPa
]
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1
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8.27 [m/sec]
10.19[m/sec]
10.95[m/sec] [MPa
][M
Pa]
[MPa
]
[MPa
]
Copyright 2011, Toshiba Corporation.
A
B
C
D2.75m
Z
X Y
Fb Fs
FcF Lb
F ((Pb Pc) A F Fs
30
A
C
D
L 1.95m
B
0.27m
Lb 0.48m 3/4 L
L=2.75m
P
2(293Hz
1(98Hz
P
F
FFT
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Copyright 2011, Toshiba Corporation.
A
B
C
Z
X Y
FsD
P
Ay
cnL
fn )12(41
L
A
D
Lb2/3 L
B
P
C
Lb2/3 L
Lb 1/4 1/3 L
215
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(a) Nomal
Motor Acceleration
Pump shaft vibration
Pump shaft vibration:
Motor Acceleration
Pump shaft vibration
Pump shaft vibration:
(b) Bearing wear
Pumpshaft
Columnpipe
Bearing
Copyright 2011, Toshiba Corporation.
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0 0.5 1Time [sec]
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[ m[ m
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6080
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0 50 100Frequency [Hz]
[ m[ m
A1
A3
D1
Du1D2
Du2A4
A2
Du3
A
D
Du
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A1
A3
D1
Du1D2
Du2A4
A2
Du3
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-0.2
-0.1
0
0.1
0.2-0.2
-0.1
0
0.10.2
048121620
X
Y
0
5
10
15
20
25
0 0.2 0.4 0.6 0.8 1
A1
A3
D1
Du1D2
Du2A4
A2
Du3
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A1
A3
D1
Du1D2
Du2A4
A2
XY
16 22 16 40
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FMEA Failure Mode and Effect AnalysisFTA: Fault Tree Analysis
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