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| Angular Vibration Test System Based on Single Line Vibration Table |
| Received:October 09, 2023 Revised:February 07, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2024.03.007 |
| KeyWord:angular vibration test line angle conversion closed-loop control vibration table fixed frequency sweep frequency |
| Author | Institution |
| DONG Zhiyuan |
Aerospace Science & Industry Defense Technology Research and Test Center, Beijing , China |
| LI Xu |
Aerospace Science & Industry Defense Technology Research and Test Center, Beijing , China |
| SHI Yu |
Aerospace Science & Industry Defense Technology Research and Test Center, Beijing , China |
| LI Feifei |
Aerospace Science & Industry Defense Technology Research and Test Center, Beijing , China |
| SUN Dongle |
Aerospace Science & Industry Defense Technology Research and Test Center, Beijing , China |
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| Abstract: |
| The work aims to evaluate the adaptability of gyro products in the environment of angular vibration. An angular vibration test system based on a single line vibration table was developed. Based on the principle of line angle conversion, an articulated mechanical structure was designed to convert the translational freedom of the line vibration table into rotational freedom. Based on the principle of angular vibration control, the control flow was designed and the closed-loop control was realized. An angular constant frequency test and an angular sweep frequency test were carried out to verify the control effect of the system. The two methods of line parameter control and angle parameter control were compared. The result showed that the angle parameter control method had higher control precision. Because of the closed-loop control, the angle parameter control method could directly affect the angle parameter value through the adjustment of the drive voltage, so as to offset part of the error introduced by the system connection, decoupling or vibration. The angular vibration test system solves the problems of limited rotation radius and limited line capacity, overcomes the problem of too narrow frequency band of the swing table, and provides a new method for the angular vibration test. |
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