ipd wheelchair

8/2/2019 Ipd Wheelchair

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NAME MATRIX ID

1 AHMAD SYAHIR BIN ABD RAHMAN 2008501685

2 KHAIRULFIKRI BIN BAIHAKIUDDIN 2008789969

3 ASNAWI BIN ZAHARI 2008710501

4 MOHD KHAIRIL IZWAN BIN KASSIM 2008512271

5 MUHAMAD IRFAN BIN HJ ABD RAHMAN 2008738519

Integrated Product Design 1Motorized Wheelchair

Prof. Madya Dr. Ismail NasiruddinAhmadAFiKS TECHNOLOGY


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INTRODUCTION


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LITERATURE REVIEW


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PROBLEM STATEMENT


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OBJECTIVE


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SCOPE


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METHODOLOGY

1. Studies- Conduct research through Internet, Books and Annual Report of

wheelchair companies

2. Discussion Group

- Brainstorming among the group members to decide the bestconcept for the motorized wheelchair

2. Prototyping- Build look alike models and obtained feedback about our concept

from expertise i.e lecturer and lab technician


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LOOK LIKE MODEL

Figure 1: Initial Model

Insufficient strength properties of the materials- cardboard too soft- axels materials (wooden sticks)- arm rest (plastic tube with wooden sticks fills)

Too many wheel designs

Wheels size too small for intended load

Anthropometry miscalculations


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LOOK LIKE MODEL

Figure 2: Second Model

Too many wheel designs

Wheels size too small for intended load

Anthropometry miscalculations


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LOOK LIKE MODEL

Figure 3: Final Model


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CAD DRAWINGS

Figure 4: Assembled Part


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CAD DRAWINGS

Figure 5: Exploded View

Back seat

Bottom seatArm Rest

Front Support

Front Wheel

Feet Rest

Back Wheel

Back WheelHousing

Main Support

Lower Body


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MATERIAL SELECTION

Part Material

Battery Lithium Ion

Best mass to power ratio

Very slow lost of charge

Separate charging dock toenabled user to charge the

battery separately from the

wheelchair body

Figure 6: Battery Schematic Diagram


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Part Material

Body Aluminum 6111

Corrosion resistance

Precipitation hardening

Hard yield strengthLess cost

Use extensively in

automotive industry


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Part Material

Wheel Tweel (developed by

Michelin Tyre)

Polyeuretine spokes

Support extra weightLatest development in

airless/uninflated tyre

shock-absorbing role of a

traditional tyre's pneumatic

properties

Figure 7: Tweel Schematic Diagram


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Part Material

Seat Natural rubber latex foam

Provide better support

Less environmental

considerationCovered with semi leather

material for good looks,

durability and easy cleaning

Figure 8: Seat


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Part Material

Motor Brushless DC motor

Long life span

Low maintenance

High efficiencySafety

Figure 9: Electric Motor


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CONCEPT


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CONCLUSION

In can be concluded that we have achieve our target todevelop the concepts and build a look alike model ofelectric powered motorized wheelchair as required in MEM531 Integrated Product Design subject. The model will

serve as our guide to build a working prototype for MEM673 Integrated Product Design 2 subject


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QUESTIONS AND ANSWERS SESSION


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THANK YOU

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