The main factors related to the electrical properties of reflector antennas are panel deformation, feed position and attitude, etc.
In practice, external loads such as gravity, wind and temperature will lead to the reflector panel's deformation, feed position offset and attitude deflection, which affect the electrical performance.
In addition, Monte Carlo simulations of the flexible model by varying initial attitude and deformation angle (different shape) are investigated and compared with the two rigid models (cannonball and flat rigid plate) over a period of 100 days.
This paper establishes the reduced dynamic model for a flexible solar sail with foreshortening deformation and coupling of its attitude and vibration.
To solve this problem, a H∞ algorithm is proposed, in which the attitude and velocity matching error caused by deformation is considered as measurement noise with limited energy, and measurement noise will be restrained by the robustness of H∞ filter.
The primary contribution of this work is to consider the control of position and attitude of rigid body and suppression of flexural deformation in one optimal control framework.
The simulation results show that the liquid sloshing can always result in nutation behavior, but the effect of flexible deformation of appendage depends on the amplitude and direction of attitude maneuver performed by spacecraft.
Being a believer in the Abrahamic sense, though, is a matter of an attitude and a relationship, and this is where the particular deformation I have in mind comes into play.
The thermal loads, for some attitude conditions, are shown to have remarkable effects on the sail deformation.
Accurate attitude information needed by the shipboard equipment is greatly influenced by the deformation of the deck.
