1 磁流变起落架缓冲系统建模
1.1 着陆模型简化
1.2 磁流变阻尼器动力学模型参数辨识
表1 压缩模式下不同电流对应的模型参数值 |
| /A | /N |
|---|---|
| 0.0 | 462.9 |
| 0.5 | 3 403.7 |
| 1.0 | 4 873.0 |
| 1.5 | 5 873.0 |
| 2.0 | 5 898.7 |
2 磁流变起落架自适应控制器的设计
2.1 磁流变起落架容错控制系统描述
表2 故障情况 |
| 故障模型 | 参数 | ||
|---|---|---|---|
| 正常 | 1 | 1 | 0 |
| 部分失效 | >0 | <1 | 0 |
| 卡滞 | 0 | 0 | 1 |
Journal of Shenyang Aerospace University >
Fault-tolerant control of magnetorheological damper based on model reference adaptive
Received date: 2024-10-11
Revised date: 2024-10-21
Accepted date: 2024-11-01
Online published: 2025-08-19
In order to better solve the problem of robust fault-tolerant control for magnetorheological landing gear buffer systems with damper failures, a model reference adaptive fault-tolerant control strategy was proposed,and a mechanical model was established and key parameters were determined by damping experiments. A fault model was established for the magnetorheological landing gear system and fault-tolerant control was introduced. An adaptive law was designed to adjust the control gain in real time, and a fault-tolerant controller was constructed to deal with damper failures. Results show that compared with the traditional passive and model reference adaptive control methods, the buffer efficiency of the damper fault tolerant control method is improved by 4.9% and 0.95% respectively. This control method significantly improves the damping efficiency and quality of the magnetorheological landing gear damping system.
Li FU , Boding FAN , Jianhui XI , Xin LIU . Fault-tolerant control of magnetorheological damper based on model reference adaptive[J]. Journal of Shenyang Aerospace University, 2025 , 42(4) : 51 -58 . DOI: 10.3969/j.issn.2095-1248.2025.04.008
表1 压缩模式下不同电流对应的模型参数值 |
| /A | /N |
|---|---|
| 0.0 | 462.9 |
| 0.5 | 3 403.7 |
| 1.0 | 4 873.0 |
| 1.5 | 5 873.0 |
| 2.0 | 5 898.7 |
表2 故障情况 |
| 故障模型 | 参数 | ||
|---|---|---|---|
| 正常 | 1 | 1 | 0 |
| 部分失效 | >0 | <1 | 0 |
| 卡滞 | 0 | 0 | 1 |
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