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磁悬浮飞轮系统
相关语句
  magnetic bearing-supported flywheel system
     Reduction of Gyroscopic Effect of a Magnetic Bearing-Supported Flywheel System
     磁悬浮飞轮系统陀螺效应的抑制
短句来源
  magnetic bearing  supported flywheel system
     A control method, crossfeedback control, is studied to restrain gyroscopic effect of a magnetic bearingsupported flywheel system.
     针对磁悬浮飞轮系统的陀螺效应,采用交叉反馈控制进行抑制.
短句来源
  “磁悬浮飞轮系统”译为未确定词的双语例句
     The methodology makes it possible to obtain the temperature distribution of the rotor. The effect of the materials property on the temperature distribution was analyzed. Finally,two methods were discussed to enhance the heat transfer of the flywheel.
     利用有限元软件ANSYS对一种磁悬浮飞轮系统的转子组件进行了温度场仿真,考虑了传导及辐射的传热方式,得到了飞轮转子组件的温度场分布,并且分析了组件材料属性对温度场分布的影响,最后对飞轮系统的强化传热进行了研究。
短句来源
     The temperature values obtained in the analysis were matched with the values in the experiment. This analysis provides an important basis for the structure and thermal design of the magnetically suspended flywheel.
     分析所得温度值与实验测值相符,为磁悬浮飞轮系统的热设计及总体结构设计提供了重要依据。
短句来源
  相似匹配句对
     Magnetic Suspension Flywheel System Design Based on LabVIEW
     磁悬浮飞轮测试系统设计
短句来源
     Overview of Study on System of Vehicle Magnetic Levitation Flywheel Battery
     车载磁悬浮飞轮电池系统研究
短句来源
     Development of Automatic Locking System for Magnetic Bearing Flywheel
     磁悬浮飞轮自动锁紧系统的研制
短句来源
     Reduction of Gyroscopic Effect of a Magnetic Bearing-Supported Flywheel System
     磁悬浮飞轮系统陀螺效应的抑制
短句来源
     Maglev System
     磁悬浮交通系统
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A control method, crossfeedback control, is studied to restrain gyroscopic effect of a magnetic bearingsupported flywheel system. The stability of the system is analyzed under crossfeedback control. The results show that the gyroscopic effect could be restrained by using this method and the system keeps stable when the rotation speed is over some critical value which is relative to the moments of inertia of the rotor and could be adjusted by the parameters of the controller according to the requirements...

A control method, crossfeedback control, is studied to restrain gyroscopic effect of a magnetic bearingsupported flywheel system. The stability of the system is analyzed under crossfeedback control. The results show that the gyroscopic effect could be restrained by using this method and the system keeps stable when the rotation speed is over some critical value which is relative to the moments of inertia of the rotor and could be adjusted by the parameters of the controller according to the requirements of applications. The performance of this system with crossfeedback control is analyzed by experiments and compared with that under decentralized proportional integral differential (PID) control only. The experiments show that the system under decentralized PID control is unstable at 12 000 r/min, while that with crossfeedback control is still work normally at 25 000 r/min. Therefore, this method could restrain the gyroscopic effect effectively.

针对磁悬浮飞轮系统的陀螺效应,采用交叉反馈控制进行抑制.分析了引入交叉反馈控制的飞轮系统稳定性,当转速超过某临界转速时,飞轮系统保持稳定,交叉反馈控制可以对陀螺效应进行完全补偿.临界转速与控制器参数以及转子的惯性矩有关,可根据实际需要通过控制器参数进行调整.实验比较了分散PID控制与交叉反馈控制下飞轮系统的性能.实验数据分析的结果表明,分散PID控制下的飞轮系统在12000r/min时由于陀螺效应而失稳,引入交叉反馈控制后,系统在转速达到25000r/min时仍平稳运行.交叉反馈控制对陀螺效应的抑制是有效的.

For a magnetic-bearing-supported high-speed flyw-heel with significant gyroscopic effects, its nutation and precession modes greatly influence stability of a system at high rotational speeds. To make a rotor running at a high rotational speed, its nutation and precession modes should be restrained effectively. But for such a rotor, traditional PID controllers are not suitable any more. A method called magnetic force lead control is created to restrain the nutation mode of a flywheel rotor. And a displacement...

For a magnetic-bearing-supported high-speed flyw-heel with significant gyroscopic effects, its nutation and precession modes greatly influence stability of a system at high rotational speeds. To make a rotor running at a high rotational speed, its nutation and precession modes should be restrained effectively. But for such a rotor, traditional PID controllers are not suitable any more. A method called magnetic force lead control is created to restrain the nutation mode of a flywheel rotor. And a displacement cross feedback with a low-pass filter is added to restrain the precession mode. Analysis results, simulation results and some experimental results about the method are provided. They all show the effects of the method.

对于具有强陀螺效应的磁悬浮飞轮系统,在实际运行时其章动与进动模态会对转子高速下的稳定性产生影响,必须有效地对其进行抑制,以使磁悬浮飞轮系统运行到工作转速。传统的PID控制已经难以满足系统的要求。给出了一种新的抑制磁悬浮飞轮章动的方法——电磁力超前控制。这种方法结合位移交叉能同时对章动与进动进行抑制,并且实现简单。对方法的有效性进行了理论分析,并给出了仿真结果及部分试验数据。

The magnetically suspended flywheel in the spacecraft can be in high temperatures due to less heat dissipation.That was undesirable because it could cause the mechanical stress due to the thermal coefficient mismatch and changed the air gap of the magnetically bearings and the motor.In this paper,thermal finite element models were used on the rotor of the magnetically suspended flywheel.The methodology makes it possible to obtain the temperature distribution of the rotor.The effect of the materials property...

The magnetically suspended flywheel in the spacecraft can be in high temperatures due to less heat dissipation.That was undesirable because it could cause the mechanical stress due to the thermal coefficient mismatch and changed the air gap of the magnetically bearings and the motor.In this paper,thermal finite element models were used on the rotor of the magnetically suspended flywheel.The methodology makes it possible to obtain the temperature distribution of the rotor.The effect of the materials property on the temperature distribution was analyzed.Finally,two methods were discussed to enhance the heat transfer of the flywheel.The temperature values obtained in the analysis were matched with the values in the experiment.This analysis provides an important basis for the structure and thermal design of the magnetically suspended flywheel.

磁悬浮飞轮作为一种航天器的姿态控制执行机构当其工作在高真空环境下时,散热条件差,系统温度过高,导致转子组件热膨胀,产生热应力或改变磁轴承及电机的间隙,则会降低系统的可靠性。利用有限元软件ANSYS对一种磁悬浮飞轮系统的转子组件进行了温度场仿真,考虑了传导及辐射的传热方式,得到了飞轮转子组件的温度场分布,并且分析了组件材料属性对温度场分布的影响,最后对飞轮系统的强化传热进行了研究。分析所得温度值与实验测值相符,为磁悬浮飞轮系统的热设计及总体结构设计提供了重要依据。

 
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