Results 11 to 20 of about 1,411 (123)
Photonics, 2023 The signal-receiving end of acquisition, pointing, and tracking (APT) systems applied to intersatellite laser communication terminals usually uses a fast-steering mirror (FSM) to control the fiber-coupling process, has a complex structural design, and ...
Bo Peng +6 more
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Stability of LevitronTM revisited [PDF]
Theoretical and Applied Mechanics, 2017 This note discusses some issues related to stability of stationary motion of hovering magnetized top in a homogeneous magnetic field. Stability of synchronous motion is analyzed using the simplified model in which the hovering motion of the center of ...
Simić Srboljub
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IEEE Photonics Journal, 2021 The charge-coupled device-based Shaker–Hartmann wavefront sensor has been widely used to compensate for wavefront distortion in coherent optical communication.
Xu Yan +6 more
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Prograde and retrograde precession of a fluid-filled cylinder
New Journal of Physics, 2021 We numerically study precession driven flows in a cylindrical container whose nutation angle varies between 60 and 90 degrees for prograde and retrograde precession.
Federico Pizzi +3 more
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Stability of disk motion on the rheological ground
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011 In this paper a new mathematical model of the disk motion on the basis of the Kelvin body is constructed. Taking the hypothesis of a point contact with the drive base, a system of differential equations of the disk motion is derived in the form of ...
I. N. Ignatov +3 more
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IEEE Access, 2019 Considering the wear in mechanical bearings and the requirement for sensors or electrical power in active magnetic bearings, a novel nutation blood pump using a passive magnetic spherical bearing was developed in this paper.
Gang Chen +4 more
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DETERMINATION OF POLE AND ROTATION PERIOD OF NOT STABILIZED ARTIFICIAL SATELLITE BY USE OF MODEL
Odessa Astronomical Publications, 2017 The algorithm of determination of orientation of rotation axis (pole) and rotation period of satellite, simulated by a cylinder, which is precessing around of vector of angular moment of pulse with constant nutation angle is offered. The Lambert's law of
S. Ya. Kolesnik +2 more
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Cone Algorithm of Spinning Vehicles under Dynamic Coning Environment
International Journal of Aerospace Engineering, 2015 Due to the fact that attitude error of vehicles has an intense trend of divergence when vehicles undergo worsening coning environment, in this paper, the model of dynamic coning environment is derived firstly. Then, through investigation of the effect on
Shuang-biao Zhang +2 more
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On the forced oscillations in a precessing open cylindrical channel
AIP Advances, 2021 In this paper, theoretical and experimental results of the forced oscillations in an open precessed cylindrical channel are reported. The theoretical part treats the problem using a linear inviscid irrotational approximation, where different inertial ...
H. E. Alshoufi
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Research of process of the elimination autobalancers of large nutation angles
Eastern-European Journal of Enterprise Technologies, 2013 This paper studies the process of eliminating large nutation angles arising from inaccurate initial rotation or imbalance of the spin-stabilized spacecraft using passive auto-balancers (pendulum, ball and liquid). An analogy in the operation of various types of passive auto-balancers (nutation dampers) (pendulum, ball and liquid) during removal of ...
openaire +4 more sources