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Weelchair Exercise Roller Product Design

出版	Massachusetts Institute of Technology, Department of Mechanical Engineering, 2005
URL	http://books.google.com.hk/books?id=92AetwAACAAJ&hl=&source=gbs_api

註釋Inspired by bicycle training rollers, a wheelchair exercise roller (an exercise machine for the application of wheelchair users) was designed from conception of idea to alpha prototype. Background and market data was gathered through research with disabled people, members of disability and rehabilitation centers, and by examining other existing related products. Initial designs were created, and using these designs, functional requirements were set. These functional requirements were used to determine the main product modules (rollers, frame, and ramp) and desired features (simulated natural inertia/forces, varying resistance, tilt feature, etc.) Keeping these in consideration, initial calculations and hands-on research were performed in particular to determine the effect of radial load and RPMs on the bearings. Then, by using test modules built with inline skate bearings, aluminum tube, and wood 2"x 4"s, the initial calculations and research were tested. The results of these tests helped to determine the eventual final design. Solid modeling software (Solidworks 2005) was then used to create various design iterations and make changes as needed