Results 1 to 10 of about 22,539 (211)
Lunar landing flight research vehicle Patent [PDF]
Lunar landing flight research ...
Allen, J. G., Jr., Levin, K. L.
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The drum cable engines with DO/HBs (Draw off hold back gear) have been indispensable equipments to lay and recover the optical submarine cables and the optical submarine repeaters.
Yoshihiro EJIRI
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Centaur engine gimbal friction characteristics under simulated thrust load [PDF]
An investigation was performed to determine the friction characteristics of the engine gimbal system of the Centaur upper stage rocket. Because the Centaur requires low-gain autopilots in order to meet all stability requirements for some configurations ...
Askew, J. W.
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A high resolution, adjustable, lockable laser mirror mount [PDF]
A prototype high resolution, adjustable, lockable mirror mount is described, suitable for use as a resonator end mirror mount in fieldable lasers. The prototype was vibrated to 15g levels, 10-2000 Hz, and was shown to be stable to within 1 arc second and
Chadwick, C. H.
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Equilibrium properties of the Skylab CMG rotation law [PDF]
The equilibrium properties of the control moment gyroscopes of the Skylab are discussed. A rotation law is developed to produce gimbal rates which distribute the angular momentum contributions among the control moment gyroscopes to avoid gimbal stop ...
Anderson, G. M., Elrod, B. D.
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Extravehicular tunnel suit system Patent [PDF]
Design and development of flexible tunnel for use by spacecrews in performing extravehicular ...
Kosmo, J. J., Tucker, E. M.
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Because of using involute spherical gear double degree of freedom of movement and force transmission characteristic,the involute spherical gear gimbal is widely used in the field of bionic,but the assembly error is an important factor affected the ...
曹永晟, 盛德号, 张立杰, 李婷
doaj
Integrating the advantage of magnetic bearings with a double gimble control moment gyroscope (DGCMG), a magnetically suspended DGCMG (MSDGCMG) is an ideal actuator in high-precision, long life, and rapid maneuver attitude control systems.
Jiancheng Fang +3 more
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In the UAV electro-optical pod of the two-axis four-gimbal, the characteristics of a coarse−fine composite structure and the complexity of dynamics modeling affect the entire system’s high precision control performance.
Cheng Shen +4 more
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On the design and development of a miniature ceramic gimbal bearing [PDF]
A review is made of a program to develop ceramic gimbal bearings for a miniaturized missile guidance system requiring nonmagnetic properties and higher load capacity than possible with conventional AISI 440C stainless steel bearings.
Gordon, Keith M. +3 more
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