Proof-phase-margin design of nutation cross-feedback control in magnetically suspended high-speed rotor system with large rotary inertia;

Establishing a Nutation Series of the Rigid Earth by the Geophysical Methods;

A new kind of internal bevel gear nutation drive is studied The optimization design of the drive, considering 16 constraints such as strength, interference, lubrication and nutation angle and so on, is provided On the basis of the theory, a multi objective function is presented, which ensures that the drive obtains the minimum gyromoment and volume, and the maximum efficienc

This paper proposes a novel method for calculating the rotational inertia for uniform bevel gear rotated around the slantwise axis inclined with an angle and develops a mathematical model for dynamic characteristics analysis of a nutation drive system composed of concave and convex meshing bevel gears by Lagrange dynamic equation.

ealuminated Y zeolites after mild steaming and (NH_4)_2SiF_6 treatments were studiedby ~(29)Si ,~(27)Al MAS NMR, ~(27)Al-~1H cross polarization MAS NMR and 2D nutationNMR.

The velocity and acceleration of the combined rotor are analysed, Varying nutation angle,the foroe of the tripper can be changed, This calculation is of vital importance in designing this kind of machine.