Results 101 to 110 of about 22,770 (227)

Gravity gradient attitude control system Patent [PDF]

open access: yes, 1971
Gravity gradient attitude control system with gravity gradiometer and reaction wheels for artificial satellite attitude ...
Gatlin, J. A.   +3 more
core   +1 more source

Analysis of Gimbal Lock

open access: yes
This technical note demonstrates the occurrence of gimbal lock within Tait-Bryan angles.
openaire   +1 more source

Research on Measurement Accuracy of Laser Tracking System Based on Spherical Mirror with Rotation Errors of Gimbal Mount Axes

open access: yesMeasurement Science Review, 2018
This paper presents a novel experimental approach for confirming that spherical mirror of a laser tracking system can reduce the influences of rotation errors of gimbal mount axes on the measurement accuracy.
Shi Zhaoyao   +3 more
doaj   +1 more source

Rotating-unbalanced-mass devices and methods for scanning balloon-borne-experiments, free-flying spacecraft, and space shuttle/space station attached experiments [PDF]

open access: yes, 1992
A method and apparatus for scanning balloon-borne experiments, free-flying spacecraft, or gimballed experiments mounted on a space shuttle or space station, makes use of one or more rotating unbalanced mass devices for selectively generating circular ...
Polites, Michael E.
core   +1 more source

A numerical study on active control for tiltrotor whirl flutter stability augmentation [PDF]

open access: yes, 2004
The use of active control to augment whirl flutter stability of tiltrotor aircraft is studied by means of a multibody simulation. The numerical model is based on a 1/5 scale semi-span aeroelastic wind tunnel model of a generic tiltrotor concept and ...
Ferrer, Rogelio   +4 more
core  

Gimballed Rotor Mechanism for Omnidirectional Quadrotors

open access: yes2025 IEEE 21st International Conference on Automation Science and Engineering (CASE)
This paper presents the design of a gimballed rotor mechanism as a modular and efficient solution for constructing omnidirectional quadrotors. Unlike conventional quadrotors, which are underactuated, this class of quadrotors achieves full actuation, enabling independent motion in all six degrees of freedom.
Jann Cristobal   +3 more
openaire   +2 more sources

Perancangan Sistem Stabilisasi Kamera Tiga Sumbu dengan Metode Kontrol Fuzzy untuk Mobile Surveillance Robot

open access: yesJurnal Teknik ITS, 2017
Robot pengintaian (surveillance robot) sering digunakan pada militer untuk melakukan tugas pengintaian sehingga tidak perlu membahayakan nyawa manusia karena dikendalikan dari jarak jauh.
Fahrezi Alwi Muhammad   +2 more
doaj  

Space Station Freedom Beta Gimbal Control via Sensitivity Models [PDF]

open access: yes
Tracking control of the Space Station Freedom solar array beta gimbals is investigated. Of particular interest is the issue of control in the presence of uncertainty in gimbal friction parameters.
Graham, Ronald E.   +2 more
core   +1 more source

Squeeze-film gas bearing technology [PDF]

open access: yes, 1968
Squeeze-film bearing is studied to develop a low-friction suspension for the output-axis gimbal of a single-degree-of-freedom gyroscope.
Pan, C. H. T.
core   +1 more source

An automated remote marshland water-sampling station [PDF]

open access: yes, 1974
Station may be made to turn on and off remotely in response to radio, audio, photo, or other suitable signals, as well as by hard-wire switching. Station will remain operational under conditions of 4-foot tidal variations, along with 4-foot wave action ...
Thomas, D. F.
core   +1 more source

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