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Partial gravity simulation using a pneumatic actuator with closed loop mechanical amplification
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ray, David M. |
| Copyright Year | 1994 |
| Description | To support future manned missions to the surface of the Moon and Mars or missions requiring manipulation of payloads and locomotion in space, a training device is required to simulate the conditions of both partial and microgravity as compared to the gravity on Earth. The focus of this paper is to present the development, construction, and testing of a partial gravity simulator which uses a pneumatic actuator with closed loop mechanical amplification. Results of the testing show that this type of simulator maintains a constant partial gravity simulation with a variation of the simulated body force between 2.2 percent and 10 percent, depending on the type of locomotion inputs. The data collected using the simulator show that mean stride frequencies at running speeds at lunar and Martian gravity levels are 12 percent less than those at Earth gravity. The data also show that foot/ground reaction forces at lunar and Martian gravity are, respectively, 62 percent and 51 percent less than those on Earth. |
| File Size | 1129637 |
| Page Count | 46 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940029889 |
| Archival Resource Key | ark:/13960/t44r2th61 |
| Language | English |
| Publisher Date | 1994-06-01 |
| Access Restriction | Open |
| Subject Keyword | Ground Support Systems And Facilities (space) Actuators Lunar Gravitation Training Devices Space Environment Simulation Feedback Control Planetary Gravitation Simulators Microgravity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
