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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 49224 (08)
- University: Sharif University of Technology
- Department: Mechanical Engineering
- Advisor(s): Behzadipour, Saeed
- Abstract:
- Rehabilitation of disabled people faced some fundamental changes during past two decades. In the past, the main goal was to reduce the negative effects of disability but now various approaches are used to restore limb movement. As these people own weak muscles due to their lack of physical training, they need Intensive physiotherapy exercises to retrieve their body strength. As a consequence, rehabilitation centers are more willing to employ new ways. These new ways exert less physical pressure on physiotherapists. It helps them to be immuned from diseases like Arthritis or back injuries that is common in such servises. So the movement assisting devices can be of a great help for both patients and physiotherapists. This project goal is design and implementation of a dynamic ceiling lift that helps gait impaired patients to walk train easier. This apparatus suspends a fraction of patient body weight and also go along with him so he can do various trainings and exercises while walking. The past methods involved at least two physiotherapists to help the patient not to fall down and made them exhausted. At first a conceptual design was chosen based on apparatus needs and available facilities. The design is divided into two units, suspension and propulsion that suspends patient weight dynamically and move the system over his head respectively. After that, detailed design of various sections including mechanical, eletronical and electrical parts was done. By the end of detailed design, the apparatus was built and transferred to the rail to be tested. Now the simulation of system by Matlab Simulink is utilized to determine the proper control method. Finally the test was done in three different weights and speeds on a subject with no gait impairment. The suspension unit controlled constant suspended weight of the subject with the highest 30 Newtons medium error that is about 10%. On the other hand, the propulsion unit was evaluated by the rope angle from vertical axis. This angle reached the highest medium amount of 6 degrees that causes about 10% of suspended weight to be exerted in horizontal axis
- Keywords:
- Body Weight Support ; Gait Rehabilitation Device ; Vertical Displacement During Gait ; Rehabilitation
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