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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Kevin, W. Hollander Thomas, G. Sugar Donald, E. Herring |
| Copyright Year | 2005 |
| Abstract | A Robotic ‘Jack Spring’™ is a new type of mechanical actuator, which is based upon the concept of structure control. A Jack Spring™ mechanism is used to create an adjustable Robotic Tendon, which is a spring based linear actuator in which the properties of a spring are crucial to its successful use in gait assistance. Like its human analog, the adjustable Robotic Tendon uses its inherent elastic nature to reduce both peak power and energy requirements for its motor. In the ideal example, peak power required of the motor for ankle gait is reduced from 250W to just 81 W. In addition, ideal energy requirements are reduced from nearly 36 Joules to just 25 Joules per step. Using this approach, an initial prototype is expected to provide 100% of the power and energy neccessary for ankle gait in a compact 0.84kg package. This weight is 8 times less than that predicted for an equivalent direct drive approach. |
| Sponsorship | Design Engineering Division and Computers and Information in Engineering Division |
| Starting Page | 25 |
| Ending Page | 34 |
| Page Count | 10 |
| File Format | |
| ISBN | 0791847446 |
| DOI | 10.1115/DETC2005-84492 |
| e-ISBN | 0791837661 |
| Volume Number | Volume 7: 29th Mechanisms and Robotics Conference, Parts A and B |
| Conference Proceedings | ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference |
| Language | English |
| Publisher Date | 2005-09-24 |
| Publisher Place | Long Beach, California, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Actuators Joules Weight (mass) Motors Jacks (lifting equipment) Springs Engineering prototypes Robotics Engines Tendons |
| Content Type | Text |
| Resource Type | Article |
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