Unit 3 Micro and Memo motion study.pdf

MICRO AND MEMO MOTION STUDY: Charts to record moment at work place – principles of motion economy, classification of moments two handed process chart, SIMO chart, and micro motion study. Development, definition and installation of the improved method, brief concept about synthetic motion studies. Management

1. Unit3-MICROANDMEMOMOTIONSTUDY:Chartstorecordmomentatworkplace
principlesofmotioneconomy,classificationofmomentstwohandedprocesschart,
SIMOchart,andmicromotionstudy.Development,definitionandinstallationof
theimprovedmethod,briefconceptaboutsyntheticmotionstudies.

3. Guess Who?

5. Micro motion study

6. Micro-Motion Study
•Ithelpsinmakingdetailedandaccurateanalysisofthecurrent
technique
•Studytheactivitiesofthemachineandtheoperator
•Techniqueofrecordingandanalyzingthetimingofbasicelementsof
anoperation
•Consistsoftakingmotionpicturesoftheoperationwithaclockinthe
picture(orwithavideocamerarunningataknownspeed)

7. Micro-Motion Study: Advantages
•Provides permanent record of motion study on film
•Provides very accurate time for each operation or motion in
comparison to stop watch time study
•Large number of operators can see the procedure at any time even
after the completion of motion study work
•These studies can easily reveal the difference between the present
and the proposed technique
•Films can be demonstrated to large work force at any desired speed
(fast/slow)

8. Micro-Motion
•The speed of the camera used range from 960 to 1000frames per
minute. But faster cameras may be used to study very fast hand
motions or complex operations
•Micro-motion study should be used when it is economical to do so,
for example,
•Short cycle/highly repetitive operations
•Large volume productions
•Operations performed by a large number of workers

9. Memo-motion Study

10. Memo-motion Study
•In memo-motion study, the camera speed is at 60 to 100 frames per
minute
•It is a form of time lapsed cine photography
•Time interval lies between ½ sec to 4 sec
•10 or 20 minutes may be compressed into 1 minute

11. Frank & Lillian Gilbreth

12. Frank & Lillian Gilbreth

13. Motion study and work design

14. Fundamental Hand Motions
•Gilberthobserved that most work done by two hands consists of few
fundamental motions
•Each one of them is called as THERBLIG(name of GILBERTH, read in
reverse order)

15. Definitions

16. Objective of Motion and time studies:

17. Therbligs

18. Therbligs

19. Therbligs

20. Search (Sh)

21. Select(St)

22. Position (P)

23. Inspect (I)

24. Plan (Pn)

25. Unavoidable Delay (UD)

26. Avoidable Delay (UD)

27. Rest for over-coming fatigue (R)

28. Hold (H)

29. Reach (RE) or Transport Empty (TE)

30. Move (M) or Transport Load (TL)

31. Grasp (G)

32. Release Load (RL)

33. Pre-Position (PP)

34. Use (U)

35. Assemble (A)

36. Disassemble (DA)

37. Find (F)

38. An example of therbligs….

39. Micromotion Study

40. Motion Economy

41. Principles of Motion Economy

42. Subdivisions of Principles of Motion Economy

43. Principles of Motion Economy
(As related to the uses of the human body)

44. Principles of Motion Economy
(As related to the uses of the human body)

45. Principles of Motion Economy
(As related to the uses of the human body)

46. Principles of Motion Economy
(As related to the workplace arrangement)

48. Principles of Motion Economy
(As related to the equipment design)

49. Principles of Motion Economy
(As related to the equipment design)-Example

50. Two Handed Process Chart

51. Two Handed Process Chart
•Two-HandedFlowProcessChart,isamotionstudywherethestudyis
donetoanalysethemotionsusedbytheworkerinperformingan
activity.

52. Right Hand, Left Hand Chart
•Usedforjobssuchasassembly,machining,clericaljobetc.,
•Operation:Representstheactivitiesgrasp,position,use,release
etc.,ofatool,componentormaterial
•Transport:Representsthemovementofthehandsorlimbstoor
fromtheworkoratoolormaterial
•Delay:Referstothetimewhenthehandorlimbisidle
•Storage:alsotermedas‘hold’referstothetimewhentheworkis
heldbyhand
•Inspection:Inspectionbyhand

53. Guidelines for preparing Two-Handed process
chart
•1. Provide all information about the job in the chart
•2. Study the operation cycle a few times before starting to record
•3. Record one hand at a time
•4. First record the activities of the hand which starts the work first
•5. Do not combinethe different activities like operation, transport
etc.,

54. Example –Assembling Nut, Washer & Bolt

55. Ex: Two-Handed Process Chart

56. Two-Handed Process Chart: Cutting Glass Tubes

57. Drawing Graph in graph paper

58. SIMO (Simultaneous-Motion Cycle) Chart

59. SIMO (Simultaneous-Motion Cycle) Chart
❖"SIMO" is the graph of the simultaneous movement cycle.
❖It is one of Gilbreth'smicro motion study
❖it provides the separable measures of each relevant operator's
limb under research graphically
❖It is a very comprehensive graph of left and right procedure

60. SIMO (Simultaneous-Motion Cycle) Chart
❖The SIMO Chart is the micro-motion form of the man type flow
process chart
❖It simultaneously records the different therbligsperformed on a
common time scale by different parts of the body
❖The motions are registered in "Winks" (1wink= 1/2000 minute)
against moment measured
❖These are registered by a "Wink Counter" placed in such a place
that during the filming process it can be seen swinging

61. Micro-Motion Study

62. Micro-Motion Study

63. Micro-Motion Study

64. MEMO-Motion Study

65. Techniques/Methods/Types of WM

66. Synthetic motion studies

67. Synthesis Method

68. Synthesis Method

69. Methods of Work Measurement