2021

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Design and fabrication of stair climbing wheelchair
(UMT Lahore, 2021-06) Raihan Ahmed; Zamin Imam; Azeem Adil
With increasing population of elderly and disabled people in Pakistan and around the globe, the cost of stair climbing wheelchair has always been an issue for the developing countries. This paper takes an alternative approach with aim to develop a cost-effective stair climbing wheelchair for Pakistan and other developing countries. The project utilizes tank mechanism for stair climbing and maneuvering. Theoretical calculations were done to finalize the structure of the wheelchair and the specifications for mechanical parts. A 3-D model of the wheelchair chassis was developed using SolidWorks and the structural rigidity was tested and analyzed using ANSYS simulation. The stair climbing wheelchair was powered using dc-geared motor. Micro-controller with android application was used to control the wheelchair to enable autonomous operation capability. It was concluded that the tank mechanism was relatively the cheapest and the overall mobility of disabled people was increased using stair climbing wheelchair.