Tilting momentum wheel for spacecraft

Details Tilting momentum wheel for spacecraft Tilting momentum wheel for spacecraft

B - Operations, Transporting

64

G

244/1.2

B64G 1/28 (2006.01) F16M 11/12 (2006.01)

Patent

CA 2026145

A momentum wheel (14, 142) for compensating for the adverse effects of disturbing torques on stabilized spacecraft is mounted on a base (12, 124) on the spacecraft by three circumferentially spaced supports which include at least two linear actuators (26, 118) that tilt the wheel (14, 142) in any desired direction. One end of each actuator (26) is mounted to a base (38, 154) supporting the wheel by a spherical connection (32, 34, 36) which allows freedom of motion about multiple axes. The other end of each actuator (26) is mounted to the base (12) by either a pair of spaced hinges (22, 24, 46) and a support bracket (18) which is secured to the actuator (26) or a flexible bracket (78). The wheel base (12,124) may also be mounted on the actuators by flexible members (150) which allow tilting of the wheel.

Un volant d'inertie (14, 21) pour compenser les effets néfastes de couples perturbateurs sur les engins spatiaux stabilisés est fixé à une base (12, 124) sur l'engin spatial au moyen de trois supports espacés de façon circonférentielle qui comprennent au moins deux actionneurs linéaires (26, 118) qui font incliner le volant (14, 142) dans une ou plusieurs directions désirées. Un bout de chaque actionneur (26) est fixé à une base (38, 154) et soutient le volant au moyen d'un raccord sphérique (32, 34, 36) qui permet la mobilité autour d'axes multiples. L'autre bout de chaque actionneur (26) est fixé à une base (12) au moyen de deux charnières espacées (22, 24, 46) et d'une ferrure de support (18) attachées à l'actionneur (26) ou d'une ferrure flexible (78). La base du volant (12, 124) peut aussi être fixée aux actionneurs par des montants flexibles (150) qui permettent l'inclinaison du volant.

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