Dynamics and stability of a freely precessing spacecraft containing a nutation damper

1996 ◽  
Vol 19 (2) ◽  
pp. 297-304 ◽  
Author(s):  
C. O. Chang ◽  
L. Z. Liu ◽  
K. T. Alfriend
Keyword(s):  
Nutation Damper

Theory, Simulation, and Practical Tests of a Counterspun Nutation Damper for Prolate Spinners

1980 ◽  
Vol 3 (4) ◽  
pp. 290-297 ◽  
Author(s):  
R. Annett ◽  
W.J. Shackcloth ◽  
S.W. Tonkin
Keyword(s):  
Nutation Damper

Nutation Accretion or Decay Due to Internal Energy Dissipation

1986 ◽  
Vol 10 (4) ◽  
pp. 219-232
Author(s):  
F.P.J. Rimrott
Keyword(s):  
Energy Dissipation ◽  
Energy Loss ◽  
Experimental Evidence ◽  
Internal Energy ◽  
Dissipation Function ◽  
Structural Elements ◽  
Attitude Angle ◽  
Nutation Damper

In the present paper the secular attitude drift of a torquefree axisymmetric gyro is studied as a function of its attitude. By arguing that the gyro’s energy loss is due to the hystereses of its structural elements, an energy dissipation function is established, which is found to be proportional to an innate dissipativity of the gyro’s body and to the gyro’s attitude angle. It is then shown that deformations of the gyro configuration are required, to facilitate the attitude drift induced by dissipation. The deformed gyro configuration is found to be a function of the (slowly drifting) attitude angle only, thus making it nearly constant. As a consequence the concept of rigidity, so essential for gyrodynamics, need not be abandoned. The available experimental evidence is very sparse, but sufficient to show that typical satellites have innate dissipations in the order of microwatts due to structural hysteresis alone; and more, of course, when equipped with a nutation damper.

Hybrid Nutation Damper for Controlling Galloping Power Lines

2007 ◽  
Vol 22 (1) ◽  
pp. 450-456 ◽  
Author(s):  
M. L. Lu ◽  
N. Popplewell ◽  
A. H. Shah ◽  
J. K. Chan
Keyword(s):  
Power Lines ◽  
Nutation Damper

Partially filled nutation damper for a freely precessing gyroscope

1991 ◽  
Vol 14 (5) ◽  
pp. 1046-1055 ◽  
Author(s):  
C. O. Chang ◽  
C. S. Chou
Keyword(s):  
Nutation Damper

scholarly journals Hysteresis Nutation Damper for Spin Satellite

2013 ◽  
Vol 6 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Hamed Shahmohamadi Ousaloo
Keyword(s):  
Attitude Control ◽  
Principal Axis ◽  
Dynamic Properties ◽  
Magnetic Hysteresis ◽  
Pure Spin ◽  
Attitude Control System ◽  
Magnetic Attitude Control ◽  
Separation Phase ◽  
Nutation Damper ◽  
Damping Torque

Hysteresis dampers are commonly used in Passive magnetic Attitude Control System (PACS). In PACS these rods produce a damping torque and reduce the satellite angular momentum and angular velocity. In this paper, a spin satellite was investigated which utilizes a passive magnetic damper consisting of magnetic hysteresis rods aligned with principal axis or spin axis of satellite and de-tumbling of the satellite, and the pure spin was achieved. An analytical model was presented to analyze hysteresis damper and a numerical simulation was performed to obtain dynamic properties of the spin attitude. In addition, assuming a dynamic imbalance, attitude behavior and damper effect on the spin rate of satellite were analyzed. The behavior of this passive magnetic stabilized satellite was simulated from the initial post separation phase.

Stability of a dual-spin satellite with a four- mass nutation damper

AIAA Journal ◽  
1970 ◽  
Vol 8 (4) ◽  
pp. 822-823 ◽  
Author(s):  
ASIM K. SEN
Keyword(s):  
Nutation Damper
Sign in / Sign up

Export Citation Format

Share Document