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presentation for review 2

  1. 1. PROJECT REVIEW - 2
  2. 3. DESIGN OF OPERATOR’S AREA OF TAFE TRACTOR FOR 2015 INDIAN INSTITUTE OF TECHNOLOGY GUWAHATI Department of Design Project by: Gokul Venkatesh Guided by: Professor. Ravi Mokashi Punekar (Institutional guide) Dr. Sougatha Karmakar (Institutional co-guide)
  3. 4. DESIGN OF OPERATOR’S AREA OF TAFE TRACTOR FOR 2015 USER EXPERIENCE ERGONOMICS STYLING
  4. 5. A QUICK OVERVIEW OF THE PROJECT PROGRESS
  5. 7. Product platform And architecture
  6. 8. Project planning
  7. 9. Product development process
  8. 10. Assess new technologies
  9. 11. Benchmarking & Competitor analysis
  10. 12. Study of functionality Controls and indicators Systems & sub-systems Existing workspace Measurement of existing layout
  11. 13. study of ergonomics anthropometric data Vision analysis Comfort/discomfort Ingress/egress Reach zones
  12. 14. User centric analysis Questionnaires and interviews Real-time scenarios User life style User interaction and responses
  13. 15. conclusions Factors associated with operation Key problems Basis for grouping
  14. 16. Concept iterations Solving key factors Solving key problems Ideas for every element of the workspace Ideas for workspace as a whole
  15. 19. LITERATURE REVIEW: A thorough reference of publications on product design and development processes Ergonomics study done by other researchers on tractor User aspects and Ergonomics Design requirement for tractors Anthropometric Database Percentile Data (5 th , 50 th and 95 th ) Strength database Percentile Data (5 th , 50 th and 95 th ) SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  16. 20. VISITS MADE: Made several visits to TAFE tractors showroom in Guwahati Visited JOHN DEERE tractors showroom (permission for photography was denied) Visited NEW HOLLAND tractors showroom in Guwahati Visited SONALIKA tractors showroom in Guwahati Visited village nearby IITG for user interaction Visited Sirugudupeta and Vallabhapuram villages in Andhra Pradesh Visited REGIONAL HORTICULTURE RESEARCH INSTITUTE, Guwahati Visited local tractor accessories shops SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  17. 21. SELF EXPLORATION SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  18. 22. Interaction with drivers SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  19. 23. IDENTIFICATION OF ELEMENTS OF INTERACTION SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  20. 24. 6 5 7 8 9 10 11 12 13 1 2 3 4 14 1. Hazard warning switch 2. Lighting switch 3. Lh and Rh indicator switch 4. Oil and pressure gauge 5. Head light warning light 6. Lh and Rh warning light 7. Battery charging indicator 8. Hour cum r.p.m meter 9. Ammeter 10. Horn switch 11. Throttle lever 12. Water temperature gauge 13. Starter switch 14. Fuel cutoff SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  21. 25. 16 17 15 15. PTO engagement lever 16. gear shift lever 17. range shift lever 18. parking break 18 SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  22. 26. 19. Hydraulic quadrant 19. a . Draft control lever 19. b . position control lever 19 a b SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  23. 27. 20 21 22 23 24 25 26 27 25. Interlocking latch 26. Left brake pedal 27. Right break pedal 23. Left side foot rest 24. Clutch pedal 20. Transmission dip stick 21. Right side foot rest 22. Foot throttle SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  24. 28. 28 29 30 28. Steering 29. Operator’s seat 30. Tool box SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  25. 29. OBSERVATIONS FROM COMPETITOR ANALYSIS AND STUDY OF EXISTING WORKSPACE SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  26. 30. MOUNTING THE TRACTOR: Platform itself is made a base for mounting Provision of foot rests in ergonomic directions by some competitors Presence of transmission levers in between the leg space seems to be an obstacle Distance between seat base and steering also seems to be less. TAFE NEW HOLLAND SONALIKA SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  27. 31. AMBIENCE: Competitors are maintaining an ambience which is more cleaner and has less noise comparatively Color coding is well utilized Ergonomic and stylish grips are provided TAFE SONALIKA NEW HOLLAND SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  28. 32. Competitors are coming up with stylish and ergonomic dash board designs Styling of steering wheel and Its positioning by competitors is increasing leg space and is providing a commendable position to the operator Various meters and indicators on dash appear scattered DASH BOARD: TAFE NEW HOLLAND SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  29. 33. LEVERS: The levers in TAFE tractor need more force to operate when compared to other competitor tractors The operator need to lean forward to operate gear shift lever, range shift lever and parking brake The operator needs to lean sideward's to operate PTO engagement lever Grips of the levers can be improved SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  30. 34. Pedals: Location of pedals of TAFE tractor makes the operator to get into an un Ergonomic position. The force required to operate the pedals is high and the operator cannot have the support of the back rest due to his/her position The operation range or range of movement of the pedals is high MAHINDRA TAFE SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  31. 35. For fixing LH brake and RH brake together, TAFE tractor operator needs to Get down from the tractor TAFE SONALIKA MAHINDRA SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  32. 36. HAND THROTLE: Some of the competitors are providing new – elegant experience in operating hand throttle. Hand throttle of TAFE tractor is not long enough. Operator need to direct his hand under the steering to operate it. NEW HOLLAND TAFE SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  33. 37. Operation of hydraulic controls causes physical problems in almost all the tractors The location of the hydraulic levers is very low in TAFE tractors and operator need to lean sideward to operate them SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  34. 38. USER CENTRIC STUDY
  35. 39. Survey/questionnaire Real life scenarios Usage trend SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  36. 40. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  37. 41. REAL LIFE SCENARIOS AND USAGE TREND: During this phase of my project, I could really get the feel of actual user, his life style, his needs, How he interacts with existing workspace and could understand the part of tractor in user’s life. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  38. 42. Tractor for display in TAFE showroom, Guwahati BASIC MODEL: SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  39. 43. OBSERVED USER ADOPTIONS: SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  40. 44. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  41. 45. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  42. 46. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  43. 47. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  44. 48. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  45. 49. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  46. 50. During User Centric study process, I could Identify User behavior, his needs and his tastes. These would be very much helpful During the conceptual stage of the . In this page, I have listed the typical User needs Identified which can be Addressed while conceptualizing Drivers workspace. <ul><li>IDENTIFIED NEEDS: </li></ul><ul><li>Space for water bottles and cans wit capacity ranging from 2l to 5l </li></ul><ul><li>Space for important stationary and documents </li></ul><ul><li>Space for mobile phone and its charger </li></ul><ul><li>Space for lunchbox/any packed food </li></ul><ul><li>Space for cassette/mp3/radio player </li></ul><ul><li>Space for cassettes/compact disks </li></ul><ul><li>Space for speakers </li></ul><ul><li>Protection from mud and dirt coming from behind during field work </li></ul><ul><li>Seat with good air ventilation </li></ul><ul><li>Space for storing things like dress, towel, funnel, etc… </li></ul><ul><li>Sitting space to accommodate persons accompanying the driver </li></ul>SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  47. 51. CONCEPTUALIZATION SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  48. 52. USER CENTRIC AESTHETIC ERGONOMIC Inspiration LOGO SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE Identity Design:
  49. 53. USER CENTRIC AESTHETIC ERGONOMIC USER CENTRIC AESTHETIC ERGONOMIC Inspiration SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  50. 54. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  51. 55. International trend board SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  52. 56. Domestic trend board SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  53. 57. Collected from Internship experience SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  54. 58. Final Key Words for the Project SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  55. 59. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  56. 60. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE Form Exercise: Aspects that influence form: Volume Lines Colour Texture
  57. 61. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  58. 62. Volumetric analysis: SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  59. 63. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  60. 64. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  61. 65. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE Selected volumes:
  62. 66. Iterations of volume 1: SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  63. 67. Iterations of volume 2: SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  64. 68. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE Iterations of volume 3:
  65. 69. Iterations of volume 3: SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  66. 70. IDENTIFICATION OF SPACE FOR USER NEEDS: Space at the rear side of Tractor SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  67. 71. Space for placing books and documents along with audio system attached to the seat SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  68. 72. Space to place 2l water bottle SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  69. 73. Space for placing books and documents along with water bottle attached to the front side of the seat SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  70. 74. The space along the inside of fender Can also be used for user centric tasks. Here a net and a box are attached to the fender in different scenarios SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  71. 75. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  72. 76. STUDY OF ERGONOMICS Provides a realistic approach towards operation analysis and study of human factors SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  73. 77. N.S.R.P method: Entire workspace is divided into: System Sub system Dimensional attributes Sub attributes Code Different Systems: Seat Steering Pedals Levers Display Controls Communication controls Hydraulic controls Miscellaneous X Y Z SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  74. 78. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE SYSTEM SUB SYSTEM DIMENSIONAL ATTRIBUTES SUB ATTRIBUTES CODE DIMENSION Seat Seat back Length Total length of seat back Sb1 Width Upper seat back width Lower seat back width Sb2 Sb3 Depth Upper seat back depth Lower seat back depth Sb4 Sb5 Location Vertical distance from NSRP to lumber support Sb6 Seat base Length Horizontal distance from NSRP to the front of seat Sbe1 Width Width of the seat base at a distance of 50 mm from NSRP Width of the seat base at a distance of 180 mm from NSRP Width of the seat base at a distance of 330 mm from NSRP Sbe2 Sbe3 Sbe4 Depth Depth of the seat base at a distance of 50 mm from NSRP Depth of the seat base at a distance of 180 mm from NSRP Depth of the seat base at a distance of 330 mm from NSRP Sbe5 Sbe6 Sbe7
  75. 79. SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  76. 80. <ul><li>INTERPRETED ERGONOMIC VALUES </li></ul><ul><li>Location of Brake and clutch pedals: </li></ul><ul><li>Longitudinal distance between brake and clutch pedals from seat index point should be 510mm or less </li></ul><ul><li>Vertical distance of brake and clutch pedals from SIP should not be more than 460mm </li></ul><ul><li>Distance from centre line should be minimum but not less than 75mm and should not be placed over 125mm from centre line. </li></ul><ul><li>Location of accelerator pedal: </li></ul><ul><li>Vertical distance of accelerator pedal should not be more than 430mm below SIP with 30mm downward movement </li></ul><ul><li>Should be place to the right of brake pedal. But at a distance not less than 75mm from centre line. </li></ul><ul><li>Dimensions of brake pedal: </li></ul><ul><li>Minimum length of the brake pedal should be 60mm. Width should be more than 110 mm </li></ul><ul><li>Steering wheel rim diameter: </li></ul><ul><li>38 to 40mm </li></ul><ul><li>Gear/speed selection/PTO/Hand throttle: </li></ul><ul><li>Dia 44mm or less </li></ul><ul><li>Parking brake lever: </li></ul><ul><li>Recommended Length of grip is 110mm </li></ul><ul><li>Diamete can be between 38-40mm </li></ul>SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  77. 81. <ul><li>INTERPRETED ERGONOMIC VALUES </li></ul><ul><li>Seat Height: </li></ul><ul><li>Measured from footrest to the front of the seat surface. </li></ul><ul><li>380mm </li></ul><ul><li>Seat pan width : 430mm </li></ul><ul><li>Seat Back Rest Width: 380 and 275mm at bottom and top respectively. </li></ul><ul><li>Seat Length: 370mm </li></ul><ul><li>Seat backrest height: 400mm </li></ul><ul><li>Arm rest: 250-300mm from the back of the seat </li></ul>SYSTEM STUDY CONCEPTUALIZATION DETAIL DESIGN VALIDATION PROTOTYPE
  78. 82. THANK YOU

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