5.Concept Selection - L-division-2020-2021-odd/Repo-12 Wiki

Original URL: https://github.com/L-division-2020-2021-odd/Repo-12/wiki/5.Concept-Selection

Objectives

  1. Ease of use
  2. Maintenance
  3. Storing medicine
  4. Portability
  5. Cost
  6. Size

Assigning weights to the objectives

SL.NO OBJECTIVES WEIGHTAGE
1. Ease of use 9
2. Maintenance 8
3. Storing medicine 7
4. Portability 5
5. Cost 4
6. Size 2

PUGH CHART

WE CHOSE DESIGN 3-RACK AND PINION AS DATUM

SL.NO OBJECTIVES WEIGHTAGE DESIGN 1-CONVEYER BELT DESIGN 2-ROTATING CYLINDER DESIGN 3-RACK AND PINION DESIGN 4-LINKAGE
1. Ease of use 9 0 0 DATUM 0
2. Maintenance 8 + + DATUM +
3. Storing medicine 7 0 - DATUM 0
4. Portability 5 0 ++ DATUM -
5. Cost 4 + + DATUM -
6. Size 2 0 + DATUM -
Positive Score 12 24 0 8
Negative Score 0 7 0 11
Total Score +12 +17 0 -3

THE BEST SUITATED DESIGN WILL BE DESIGN-2 THAT IS ROTATING CYLINDER DESIGN

JUSTIFICATION

DESIGN 1 - CONVEYOR BELT

SL.NO OBJECTIVES SCORE GIVEN JUSTIFICATION
1. Ease of use 0 Both the design are easy to use since we have to just push the button to get syringes dispensed
2. Maintenance +8 The Conveyer belt design is easy to maintain because unlike rack and pinion it doesn't require any kind of lubricant to run smoothly
3. Storing medicine 0 Both the designs have same type of storing we have to put bottles or syringes one above the other
4. Portabitallatlity 0 Both design can be carried easily however rack and pinion maybe little heavy
5. Cost +4 Conveyer belt design will cost less because it's mechanism is simple and have simple components unlike rack and pinion whose components are complex
6. Size 0 Both the designs have same size

DESIGN 2

SL.NO OBJECTIVES SCORE GIVEN JUSTIFICATION
1. Ease of use 0 Both the design are easy to use since we have to just push the button to get syringes dispensed
2. Maintenance +8 Unlike rack and pinion this design is easy to maintain and has long life
3. Storing medicine -7 In this design we have to put each one-one syringe or bottle in each compartment which is a tedious process
4. Portability +10 This design is light weight and easy to carry
5. Cost +4 In this design the components used are very less and simple though the inner cylinder is complex to make but it is cheap
6. Size +2 The design being cylindrical occupies less space compare to rack and pinion which is cuboidal

DESIGN 4-LINKAGE

SL.NO OBJECTIVES SCORE GIVEN JUSTIFICATION
1. Ease of use 0 Both the design are easy to use since we have to just push the button to get syringes dispensed
2. Maintenance +8 This design is easy to maintain as the linkage requires no maintenance
3. Storing medicine 0 In this design the syringes and the bottles are stored in a box it is on same level of that of rack and pinion
4. Portability -5 Due to its large size it is little difficult to carry
5. Cost -4 This design has more no. components so the cost maybe little high
6. Size -2 The linkage mechanism takes more space compare to rack and pinion