Novel Non-Pneumatic Wheelchair Tyres
Manual wheelchairs are essential assistive technology devices for individuals with reduced mobility, yet research focused on optimising their performance remains scarce.
Existing literature highlights problems such as musculoskeletal injuries, back pain, and pressure sores associated with manual wheelchair use. These issues may arise due to current wheelchairs being unable to maximise user comfort, and ease of movement.
To address these challenges, this study proposes implementing Non-Pneumatic Tyres (NPTs) with flexible spoke designs. These tyres are puncture proof, do not require pressure maintenance, and rely on deformable spokes to absorb impacts.
The project will combine computational finite element modelling, statistical modelling, additive manufacturing, and mechanical testing. By designing unique spoke geometries with tuneable mechanical behaviour, these tyres can adapt to different loading conditions relative to wheelchair everyday tasks and can be tuned to account for the needs of specific individual users. This in turn should allow for unmatched levels of comfort, manoeuvrability, and efficiency that is currently unavailable in conventional wheelchairs.