3) Retractable flexible appendage
可收缩挠性附件
4) spacecraft with deployable and retractable flexible appendage
带可伸缩挠性附件航天器
1.
In this paper,by taking the spacecraft with deployable and retractable flexible appendage as the object,the principle and method of intelligent adaptive control are researched so as to realize the control target of high precision,high stability and strong adaptability.
研究以带可伸缩挠性附件航天器为对象,以实现高精度、高稳定度和强适应性为目标的智能自适应控制的基本原理和方法,根据对象特征模型和自适应黄金分割控制律提出了基于附件长度的变参数主动控制方法,即中心刚体控制与挠性附件主动控制相结合的联合自适应控制方法。
5) flexible appendage
挠性附件
1.
The coupled dynamic equations of a spacecraft with tip mass attached flexible appendage which is deployable are obtained by using the momentum theorem.
结构复杂的航天器带有几十米、上百米大型挠性附件,附件末端还带有大质量刚体。
2.
The attitude dynamic equations of a spacecraft with flexible appendages are obtained by using the momentum theorem.
在挠性附件按指数规律和幂次规律伸展情况下,研究了附件伸展运动对弹性振动和航天器姿态的影响,得到了附件振动的振幅和姿态角速率随附件长度变化的渐近公式,得到航天器最大姿态偏差的估计式。
6) flexible appendages
挠性附件
1.
Considering the condition that modern spacecraft are always of large flexible appendages and the fact that the flexible vibration often degrades the control system performance,this paper employs a method that consists of a feedforward compensator and a feedback control loop to fulfill attitude maneuver rapidly with little residual vibration.
针对空间飞行器常带有大型挠性附件,而挠性附件的振动往往使控制系统性能变差的问题,提出了一种能有效抑制系统残留振动的姿态机动控制策略,即机动控制内环结合前置补偿结构。
2.
Considering the condition that modern spacecraft are always of large flexible appendages and the fact that the flexible vibration often degrades the control system performance, this paper employs a method that consists of a feed-forward compensator and a feedback control loop to fulfill attitude maneuver rapidly with little residual vibration.
针对空间飞行器常带有大型挠性附件,而挠性附件的振动往往使控制系统性能变差的问题, 提出了一种能有效抑制系统残留振动的姿态机动控制策略,即机动控制内环结合前置补偿结构。
补充资料:伸缩性变形丝
分子式:
CAS号:
性质:又称假捻变形丝,弹力丝。以伸缩性为主要性能的长丝或短纤纱。变形工艺即用机械方法使高聚物内分子间产生卷曲,并使强制呈伸直状态时会产生力求使丝恢复到首次变形状态的内应力,具有高度螺旋状卷曲为特征。其加工方法有加捻-定型-解捻的古典法、假捻法、堵塞箱法、皮圈摩擦法、刀刃卷曲法等。按其伸缩性大小可分高弹丝和低弹丝。假捻变形丝一般以回弹性较好的热塑性涤纶、锦纶为原料。主要用于织物。
CAS号:
性质:又称假捻变形丝,弹力丝。以伸缩性为主要性能的长丝或短纤纱。变形工艺即用机械方法使高聚物内分子间产生卷曲,并使强制呈伸直状态时会产生力求使丝恢复到首次变形状态的内应力,具有高度螺旋状卷曲为特征。其加工方法有加捻-定型-解捻的古典法、假捻法、堵塞箱法、皮圈摩擦法、刀刃卷曲法等。按其伸缩性大小可分高弹丝和低弹丝。假捻变形丝一般以回弹性较好的热塑性涤纶、锦纶为原料。主要用于织物。
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