歯RCM

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진리 영
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1 Reliability Centered Maintenance

2 Page 2

3 1.,,,. Mode Component, Sub-system, System, System. Reliability Centered Maintenance :, program? Mechanism Page 3

4 Page 4. Mode Mode () () (FMEA) (FTA) (LTA) System Sub System Equipment Component Part

5 : 2 U : 1957 : 1960 : 1970 : 1980 :,, 1985 : Page 5

6 3.,,,,., (Bath Tube Curve) TBM, CBM,. (1),. (2) Process. Page 6

7 BATH TUB Page 7

8 6??????,,,, Page 8

9 Page 9

10 ( ) Helicopter Turbine Engine 1 rotor seal roller brg brg rotor brg seal impellar rotor disc rotor plate brg ~ ~ CR = P(Xi) P(Fxi) Page 10

11 mode On con 1. seal 2. ( )Brg 3. Brg 4. Brg seal 5. impellar 6. Gas, 7. Vane @ Page 11

12 Helicopter Engine Xi -, () P(Fxi) - CR = P(Xi) ModeData. Page 12

13 5. TPM Item, Staff + 0, 0 +,, TPM., Operator Plant Item PM Item, Process Page 13

14 TPM system system. :, system : Item : system Item,,. Page 14

15 TPM R C M Page 15

16 ITEM ( ) (SYSTEM SUB) (ASSEMBLY ) ( ) ( )) SYSTEM SUB SUB SYSTEM ASSEM SUB SUB ASSEM COMPONENT PART SYSTEM LEVEL ASSEMBLY LEVEL LEVEL LEVEL Page 16

17 STEP 1 STEP 2 STEP Model Data (Block flow sheet, functional block chart,,, ) 3 STEP Component, list up 4 STEP Functional Failure Analysis FTA(Fault Tree Analysis) FMECA(Function Failure Mode Effects Analysis 3STEP FMECA FTA,, (2TA). 5 STEP (Logic Tree Analysis) 6 STEP 7 STEP Page 17

18 Page 18

19 6-1., :,,,, Page 19

20 6-2. 1).,. 2),,.,. 3),. 4), Life Cycle. Life Cycle. 5), Trouble,. Page 20

21 6-3. (1).,.. ( ) ( ) (2).... (Maintainability). (3). ( ) (Availability). (3) = (1) + (2) = Page 21

22 ,,,,, ( ). 1) 2),? 3)? 4)?,,,,,,,. 1)~3) MakerUser. Page 22

23 :,,,,.,.,, ),, 2), ( ) 3),.,..,,. Page 23

24 6-4. reliability,,..,. Plant 1. (,,,,,, ),,,.. R(t), F(t) R(t) + F(t) = 1 - (1) (t), t =0. R(t), t = 0 1, R(0) = 1. R(t) (t) Page 24

25 NO F(t) = 1 = Probability 50 R(t) = 50-1 = normalprobability, = (Credible) curve 50 R(t) = 1 F(t) = = Page 25

26 df(t) dt = f(t) = d[1r(t)]dt = dr(t)dt (2) F, R Function t F(t) = t 0 f(t)dt f(t) dt f(t)dt tt + dt. Ex) f(t)dt ~! ( = 0 ) Page 26

27 Page No. t F(t) R(t) No. t F(t) R(t) No. t F(t) R(t)

28 R 0.7 (t) 0.6 F 0.5 (t) t 1,000 Page 28

29 (2) t R(t) f(t)dt 0 t 0 F(t). (3) f(t)dt. (4) f(t)r(t) (t) dr(t) (t) dt 1 R(t) f(t) R(t) (5) (5) 0 t f(t)dt 0 t H(t) f(t)dt 0 t f(t) R(t) lnr(t) H(t) (7) R(t) e H(t) (8) dt Log R(t) (6) (6) Page 29

30 e (e, ). (t) (9) t (t) ( t ) ( t ) NO.1(t) ( 1100) (503) 0.67(%1,000) NO.2(t) ( 1100) 49(4-3) 2.04 (%1,000). Page 30

31 6-5. Maintainability,,.,.,, = P D Q C M A U U D A : Availability U : Up-time D : Down - time Page 31

32 A U ( U+D ). t A(t), (Steady State) ASS( Steady state availability) E(U) ASS E(U) + E(D) (6 1)., ( i) (Mi),. M(t) M(t) = 1e t ( 6-2). MTTR, 1, MTTF. M M(t). Page 32

33 7... ( ) () (FTA) Mode (FMECA). Block Tree. (, ) ( ) (, ) ( ) Page 33

34 1.,,, Sequence,, 2. Block Data Process 3., 4.,, Interface Page 34

35 5. FMEA Mode FMEA Logic Tree Mode Mode Plant (1), (2), (3), FMEA SHEET 6. Logic Tree 4 Logic Tree Page 35

36 6-1. (1) 6-2. (2) (1) ( Logic Tree Diagram [1] ) A : B : C : D : E : (2) ( Logic Tree Diagram [2] ),.. a : b : Monitoring c : On-condition d : e : f : g : h : PM 4 Logic Tree 3- FMEA 4 Logic Tree Flow. Page 36

37 / 7. / / (1) Data (2) (3) Data (4), / 5, Monitoring pump Monitoring Life Cycle Data /. Page 37

38 8. 1., plant,. 2. level item datd. 3. (LAT) Step. 4. plant system. Page 38

39 M P Surge tank M P M P F T Page 39

40 1 2 1 zone 2 zone 3 zone 4 zone Extruder K2 4 K4 4 R GRU R GRU C102 4 NO Page 40

41 Block Diagram ( ) Page 41

42 A. Pump Valve Valve Header Motor H / Exchanger Header Piping Valve Strainer Loop piping Valve Shaper Surge Tank Page 42

43 B. Pump Motor Surge tank Coupling Tank Impellar Cable Bearing Air filter Cable Positioner Valve Page 43

44 Page 44 MODEL Motor Motor Sprocket Sprocket Pulley Pulley Coupling Coupling Chain Chain Belt Belt Sprocket Sprocket Pulley Pulley Rotating shaft Rotating shaft Pinion Pinion Gear Gear Bearing Bearing Bolt Bolt Housing Housing Frame Frame ( ) ( )

45 LIST 1 Roll 980 ~ 1100mm Roll Lift max 1000mm max 740mm Spindle ( Close pin ) mm 2, Hi - Line Upper spindle 6.16 º Bottom spindle 3.07 º Torque 113 ton 211ton Main motor DC 3100kw rpm Page 45

46 ( ) LIST. A Cylinder B Cylinder 115 kgfcm² ~ 120 kgfcm² 115 kgfcm² ~ 120 kgfcm² 115 kgfcm² ~ 120 kgfcm² 3mg 100cc 2 kgfcm² ~ 2.5 kgfcm² 1m³ min 10 2 kgfcm² 1m³ min 10mg / 100cc Roller table Slide Gap 0.05mm m 0.1mm m 0.1mm m 0.08mm Page 46

47 ,? YES NO? YES NO,,? YES NO,,? YES NO? Page 47

48 STEP 1 Step 2 Step Model Data (Block flow sheet, Functional block chart,,,, ) 3 Step Functional Failure Analysis Component List up 4 Step Mode FTA, FMECA 3 Step FMECA FTA FTA,,, (LTA) 5 Step Logic Tree Analysis 6 Step Sheet 7 Step Page 48

(3) () () LOSS LOSS LOSS LOSS (4) = 100 = 100 = 100 = 100 = 100 = 100 = 100 = 100 = 100 = 100 = 100 = 100

1.,.. 2. (1) Flow + ( ) (2) Flow Flow (LINE) ) (LINE) ModelC/T LOSS DAT A Check Sheet ((%) (T PM) (LOSS) - (3) () () LOSS LOSS LOSS LOSS (4) = 100 = 100 = 100 = 100 = 100 = 100 = 100 = 100 = 100 = 100

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歯RCM