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| Research on Interface Force Limiting Control Technology of Space Vehicle |
| Received:September 13, 2021 Revised:October 26, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.11.012 |
| KeyWord:vibration test force limited control acceleration limit |
| Author | Institution |
| PANG Jia-zhi |
Aerospace science & industry defense technology research and test center , Beijing , China |
| WEI Wei |
The Fourth Military Representative Office of the Air Force Armament Department in Beijing , Beijing , China |
| LI Xu |
Aerospace science & industry defense technology research and test center , Beijing , China |
| SUN Jia-chuan |
Aerospace science & industry defense technology research and test center , Beijing , China |
| LI Feng |
Aerospace science & industry space engineering development Co .LTD , Beijing , China |
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| Abstract: |
| This paper aims to study the force limited control technology and solve the overtesting problem. In this study, a force-limited vibration test system was built using a space vehicle simulator as the test object. The force-limit parameters were obtained by low-level sinusoidal sweep test method. By the way of the semi-empirical method, the simple two-degree- of-freedom method and the complex two-degree-of-freedom method, the force-limit control equations were established with their minimum envelope. The influence of force limited control and acceleration limit control on the control effect was comparatively studied. By the force-limit control technique, the vibration control curve is more stable with a inverted triangular narrow-band concave at the resonance frequencies. Compared with the acceleration limit method, the force limit control method is more stable and accurate in limiting the resonance phenomenon, and the resonance peak suppression is more obvious. The force-limit control technique is better in controlling resonance, and has great significance to the assessment of environment space products in vibration test. |
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