Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (S1): 727661-727661.doi: 10.7527/S1000-6893.2022.27661
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Xiaozhe SUN, Dong HOU(), Jianzhong YANG
Received:
2022-06-01
Revised:
2022-06-22
Accepted:
2022-08-12
Online:
2023-06-25
Published:
2022-08-31
Contact:
Dong HOU
E-mail:2020131003@cauc.edu.cn
Supported by:
CLC Number:
Xiaozhe SUN, Dong HOU, Jianzhong YANG. Mechanism and sensitivity of force fight in dual redundant electromechanical actuators[J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(S1): 727661-727661.
Table 2
Influencing factors of force fight
序号 | 造成力纷争的原因 | 力纷争影响来源 | 在模型中的表现形式 |
---|---|---|---|
1 | 减速装置传动效率 | 传动机构参数误差 | 齿轮箱传动效率有15%的偏差 |
2 | 传动间隙 | 齿轮箱和滚珠丝杠的传动间隙有200%的偏差 | |
3 | 传动刚度 | 传动刚度有25%的偏差 | |
4 | 摩擦 | 电机摩擦有30%的偏差 | |
5 | 电阻参数 | 电机参数误差 | 电阻有30%的误差 |
6 | 电感参数 | 电感有10%的误差 | |
7 | 转动惯量 | 转动惯量有10%的误差 | |
8 | 阻尼系数 | 阻尼系数有30%的误差 | |
9 | 电流转矩比例系数 | 电流与转矩系数有6%的差异 | |
10 | 外部负载转矩变化 | 0.1 s加入5 000 N的负载 | |
11 | 位置指令延迟 | 控制器及传感器参数误差 | 位置指令信号有20%的延迟 |
12 | 位置传感器延迟 | 传感器信号有20%的延迟 | |
13 | 位置信号偏置 | 2%的位置信号偏置 | |
14 | 转速信号偏置 | 2%的转速信号偏置 | |
15 | 电流信号偏置 | 2%的电流信号偏置 | |
16 | 位置信号参数瞬变 | 2%的位置信号参数瞬变 | |
17 | 位置信号断续 | 位置信号在0.2 s有0.01 s的断续 | |
18 | 位置传感器信号噪声 | 传感器及传动部分噪声 | 向位置传感器信号加入0.2%的频率为50 Hz的白噪声 |
19 | 转速传感器信号噪声 | 向转速传感器信号加入0.2%的频率为50 Hz的白噪声 | |
20 | 电流传感器信号噪声 | 向电流传感器信号加入0.2%的频率为50 Hz的白噪声 | |
21 | 减速装置噪声 | 向齿轮箱加入0.2%的频率为50 Hz的白噪声 | |
22 | 位置输入信号噪声 | 向位置输入信号加入0.2%的频率为50 Hz的白噪声 |
Table 6
Parameter sensitivity distribution
影响因素 | 敏感度 | 敏感范围 |
---|---|---|
减速装置传动效率 | 99 760 | all |
传动间隙 | 9 104 | all |
转动惯量 | 1 154 | all |
外部负载转矩变化 | 3 761 | all |
位置指令延迟 | 35 314 | all |
位置传感器延迟 | 15 640 | [0.010 2,0.011] |
位置信号偏置 | 67 347 | [0.001,0.02) |
转速信号偏置 | 11 231 | [0.004 6,0.02] |
位置信号参数瞬变 | 17 722 | [0.003,0.02] |
位置信号断续 | 1 704 351 | all |
位置传感器信号噪声 | 8 789 | [0.054%,0.2%] |
转速传感器信号噪声 | 1 625 | [0,0.034%] |
减速装置噪声 | 5 270 | [0.08%,0.2%] |
位置输入信号噪声 | 7 600 | [0.07%,0.2%] |
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