Hand-held devices for generating force/torque perturbations
There have been many studies dealing with sudden muscle stretch experienced by people who suffer from Parkinson’s diseases. As one of the methods to observe this passive muscle activity on the upper limb, researchers utilize devices that capable of creating passive angular motions of the wrist. Enco...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2011
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| Online Access: | http://hdl.handle.net/10356/46482 |
| _version_ | 1824454162856804352 |
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| author | Wong, Yoke Cung. |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Wong, Yoke Cung. |
| author_sort | Wong, Yoke Cung. |
| collection | NTU |
| description | There have been many studies dealing with sudden muscle stretch experienced by people who suffer from Parkinson’s diseases. As one of the methods to observe this passive muscle activity on the upper limb, researchers utilize devices that capable of creating passive angular motions of the wrist. Encouraged by this need, a simple hand-grasped device for wrist perturbation is proposed in this work and its ability to generate torque is investigated. The system is driven by a DC motor and mainly consists of a flywheel, a handle, and a breaking system. The working principle is to spin the flywheel at a certain angular speed and then break this rotation motion within a very short period so that relatively high deceleration will take place and torque will be generated. The conducted experiments show that the torque exerted by the combination of the flywheel's inertia, angular speed, and breaking-off time interval enables the device to generate passive angular displacement of the wrist. |
| first_indexed | 2025-02-19T03:17:56Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/46482 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:17:56Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/464822023-03-04T18:21:24Z Hand-held devices for generating force/torque perturbations Wong, Yoke Cung. School of Mechanical and Aerospace Engineering Robotics Research Centre Domenico Campolo DRNTU::Engineering There have been many studies dealing with sudden muscle stretch experienced by people who suffer from Parkinson’s diseases. As one of the methods to observe this passive muscle activity on the upper limb, researchers utilize devices that capable of creating passive angular motions of the wrist. Encouraged by this need, a simple hand-grasped device for wrist perturbation is proposed in this work and its ability to generate torque is investigated. The system is driven by a DC motor and mainly consists of a flywheel, a handle, and a breaking system. The working principle is to spin the flywheel at a certain angular speed and then break this rotation motion within a very short period so that relatively high deceleration will take place and torque will be generated. The conducted experiments show that the torque exerted by the combination of the flywheel's inertia, angular speed, and breaking-off time interval enables the device to generate passive angular displacement of the wrist. Bachelor of Engineering (Mechanical Engineering) 2011-12-12T07:33:01Z 2011-12-12T07:33:01Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/46482 en Nanyang Technological University 68 p. application/pdf |
| spellingShingle | DRNTU::Engineering Wong, Yoke Cung. Hand-held devices for generating force/torque perturbations |
| title | Hand-held devices for generating force/torque perturbations |
| title_full | Hand-held devices for generating force/torque perturbations |
| title_fullStr | Hand-held devices for generating force/torque perturbations |
| title_full_unstemmed | Hand-held devices for generating force/torque perturbations |
| title_short | Hand-held devices for generating force/torque perturbations |
| title_sort | hand held devices for generating force torque perturbations |
| topic | DRNTU::Engineering |
| url | http://hdl.handle.net/10356/46482 |
| work_keys_str_mv | AT wongyokecung handhelddevicesforgeneratingforcetorqueperturbations |