章动

It is slown that the improved method's synthesis is stronger and easier to understand, in which wobble and nutation can be solved synchronously.

研究表明改进后的方法具有综合性强、易于理解及可同时求解极移和章动的特点。

Simulation and test prove that this method can improve nutation stability caused by gyroscopic effects effectively.

仿真和实验结果表明，采用这种基于转速的增益预调交叉反馈的控制算法，能够有效地抑制磁悬浮飞轮转子陀螺效应所导致的章动失稳，所设计的磁悬浮飞轮原理样机能够稳定运行在其额定转速30000r／min。

The increasing accuracy of modern observations requires to take into account its influence on the nutation amplitudes at the level of a few microarcseconds.

随着观测和计算精度的提高，地球动力学扁率值的不一致将影响章动振幅的计算。

Small lunar explorer ; Active nutation control ; Fuzzy control

小型月球探测器；主动章动控制；模糊控制

In order to improve the amplitudes of the rigid Earth nutation series, it become necessary to revise the IAU 1976 value of the general precession in longitude.

非刚体地球章动的转换函数中所采用的简正模频率和常数都直接或间接地依赖地球动力学扁率值。

The possible differential rotation among the layers of the Earth interior and its contribution to nutation, as well as the displacement profile interior, are studied, which provides a new method to study the differential rotation of the Earth cores.

讨论了地球内部可能的较差转动对章动的贡献以及地球内部形变场剖面，特别是核幔边界附近的低阶形变场的非线性特性，为研究较差转动提供了除地震学之外的另一种新的可能途径。

The interpretation and selection for different values of the Earth dynamical flattening will have to be approached in the construction of the future nutation theory of a non-rigid Earth.

在建立非刚体地球章动理论中，如何解释地球动力学扁率值的差异，如何选取地球动力学扁率值，还有待进一步的研究。

In view of the effective results about the long term disaster weather prediction based on the vari- ation of the earth rotation in the recent 10 years,the authors try to explore the deep reason of major disaster weather with the relationship among the earth nutation,rotation and atmospheric change.

鉴于近10多年来运用地球转速的变化做长期灾害天气预测取得的较好效果，试图运用地球的章动、地球转速和大气变化的关系，探索重大灾害天气的深层次原因。

For the disadvantage of wasting fuel, a fuzzy active nutation control scheme was proposed. The three schemes were all given the numerical simulation result.

针对两种方法消耗燃料比较大的缺点，提出了一种模糊喷气主动章动控制方法

This paper presents a dynamics decoupled simulation method in which a single-axis spin platform is employed to simul...

本文提出一种利用动力学解耦的仿真方案，用单轴平台进行细长体双自旋卫星消旋和章动控制的系统试验，验证了系统的可行性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。