电动力绳系卫星的推力幅值较小且方向固定，完成轨道机动任务的周期长，其最优控制问题的求解比较困难。
Electrodynamic tethers with low thrust-to-weight ratios can only perform orbital transfers over a large number of revolutions, which poses a real challenge to short time scale optimal control methods.
检查动力钳和尾绳是否在钻台上。
对矿井提升机提出了既能满足调绳安全制动，又能满足其他安全制动要求的制动力矩倍数综合选定的方法。
Put forwards complex sectection method of brake moment mulitpl that can satisfy the demand of regulation rope safety brake and also can satisfy the demand of other safety brake for mine hoist.
本文首先通过对系统的模型进行了假定，建立了绳系网捕系统的动力学模型。
In this paper, we first give some hypotheses in order to obtain the dynamical mode of the system.
它由送铝丝机构、送环形绳机构、铝卡成型机构和动力装置组成。
The utility model is composed of an aluminum wire conveying mechanism, a circular rope conveying mechanism, an aluminum card forming mechanism, and a power device.
分析了封包绳提前断裂状态下降落伞系统的运动特性，建立伞舱组合体在拉直阶段的动力学模型，计算了主伞的运动轨迹，分析了拉出的主伞与伞舱口的碰撞情况。
Under the conditions of early rupture of the reefing lines, motion characteristics of parachute system were analyzed, and mathematic model of parachute-capsule system in the deployment was built.
通过建立空间电动绳系系统动力学模型，研究了通有电流的导电系绳高速运动切割地球磁力线时系绳的振荡和变形特性。
With its mass and flexibility of an electrodynamic tether system considered, the propulsive motion of the electrodynamic tether system is modeled.
分析了制动绳防附系统制动过程中缓冲器产生制动力的计算和缓冲器的两种调整方法，并结合实例介绍了这两种调整方法的具体应用。
Focus on preventing drop system of braking force and two kinds of adjusting method about buffer in the course of braking . The application of use of example in this paper.
本发明不但可以方便、快捷、省时、省力的收放保护绳，安全可靠，而且可以解放劳动力，提高生产率。
The utility model can not only conveniently and quickly retract the protective rope in a time-saving and labor-saving way, but also liberate labor and improve productivity, and is safe and reliable.
本发明不但可以方便、快捷、省时、省力的收放保护绳，安全可靠，而且可以解放劳动力，提高生产率。
The utility model can not only conveniently and quickly retract the protective rope in a time-saving and labor-saving way, but also liberate labor and improve productivity, and is safe and reliable.
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