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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Stanley, A.A. Okamura, A.M. |
| Copyright Year | 2008 |
| Abstract | The combination of particle jamming and pneumatics allows the simultaneous control of shape and mechanical properties in a tactile display. A hollow silicone membrane is molded into an array of thin cells, each filled with coffee grounds such that adjusting the vacuum level in any individual cell rapidly switches it between flexible and rigid states. The array clamps over a pressure-regulated air chamber with internal mechanisms designed to pin the nodes between cells at any given height. Various sequences of cell vacuuming, node pinning, and chamber pressurization allow the surface to balloon into a variety of shapes. Experiments were performed to expand existing physical models of jamming at the inter-particle level to define the rheological characteristics of jammed systems from a macroscopic perspective, relevant to force-displacement interactions that would be experienced by human users. Force-displacement data show that a jammed cell in compression fits a Maxwell model and a cell deflected in the center while supported only at the edges fits a Zener model, each with stiffness and damping parameters that increase at higher levels of applied vacuum. This provides framework to tune and control the mechanical properties of a jamming haptic interface. |
| Sponsorship | IEEE Computer Society |
| Starting Page | 20 |
| Ending Page | 30 |
| Page Count | 11 |
| File Size | 1659130 |
| File Format | |
| ISSN | 19391412 |
| Volume Number | 8 |
| Issue Number | 1 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Jamming Haptic interfaces Arrays Materials Solenoids Force Shape particle jamming, tactile display Haptic device design haptic I/O tactile display Haptic device design particle jamming |
| Content Type | Text |
| Resource Type | Article |
| Subject | Human-Computer Interaction Computer Science Applications |
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