反作用力矩

Based on the establishment of mathematical model of flywheel and the analysis of disturbance and noise,the feedback compensation control system is designed.

首先建立了反作用飞轮数学模型，并分析了摩擦力矩干扰和速率测量噪声的特性，在此基础上进行了反馈补偿控制的设计。

DC torque motor under the reaction flywheel control mode was used in nacelle azimuth control in this paper.

实现了用直流力矩电机在反作用飞轮控制方式下对气球吊篮的方位控制。

In this paper,nacelle attitude driven by reaction wheels and the full digital decoupling control system of high delicacy torque sensor are studied.

该文研究了一种利用飞轮的反作用力矩作为吊篮姿态控制力矩的惯性轮力矩台控制系统和由高灵敏度扭矩传感器进行吊绳扭矩检测的全数字反捻控制系统组成的吊篮姿控系统，实现了气球吊篮空中姿态的定点问题。

Meanwhile, three orthogonally magnetic coils installed are used to unload wheel momentum.

同时，卫星三轴配置磁力矩器以实现动量轮/反作用飞轮的角动量卸载。

In this paper,the design of a feedback compensation control system for reaction wheel of torque mode is introduced.

介绍了反作用飞轮力矩模式反馈补偿控制系统的设计。

Firstly, a coupled mechanical and electric dynamics model consisting of theodilite and reaction wheels and considered mass eccentricity and friction moment is deduced from Lagrange-Maxwell equations.

文中首先由Lagrange-Maxwell方程导出了考虑质量偏心和摩擦力矩，包含经纬仪和反作用轮的机电耦合动力学模型。

Firstly, the control of reentry phase and the model of RCS jets are presented. Then the flight control system is divided into two subsystems based on the time-scale separation principle. The fast states subsystem corresponds to the three body-axis angular rates, the slow states subsystem controls the angle-of-attack, sideslip angle and the rate of the bank angle about the velocity vector. Lastly, the proportional-plus-integral feedback is designed to increase the system robustness.

首先，分析了SRLV再入段的数学模型，并给出了反作用推力控制系统的控制模型；其次，将非线性动态逆方法与时标分离原则相结合，考虑飞行器姿态控制系统的外环角回路的慢变特性和内环角速度回路的快变特性，独立设计了两个回路的控制律；最后，为了增强系统的鲁棒性，分别在两个回路中引入了比例－积分反馈，有效地抑制了干扰力、力矩和非线性对消带来的逆误差。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。