Multi-dimensional parallel platform and system integrating direction pointing and vibration isolation

Abstract

The invention provides a multi-dimensional parallel platform and system integrating direction pointing and vibration isolation. The parallel platform includes an upper platform, a lower platform, six drive support legs and an acceleration sensor. The acceleration sensor is arranged above the drive support legs and is used for measuring the motion acceleration of the drive support legs and feeding the motion acceleration back to a control system so as to enable the control system to control movement of the drive support legs. Therefore, vibration isolation is achieved. The drive support legs include displacement sensors used for measuring axial displacement of the drive support legs and feeding the axial displacement to the control system so as to enable the control system to control the posture of the upper platform. Therefore, accurate direction pointing is realized. In this way, the direction pointing function and the vibration isolation function are integrated together, so that the platform provided by the invention replaces a vibration isolation system and a precise direction pointing system working independently in the prior art, so that the size and the weight of space devices are reduced substantially.

Description

technical field [0001] The invention relates to the technical field of spacecraft, in particular to a pointing and vibration isolation integrated multi-dimensional parallel platform and system. Background technique [0002] With the development of aerospace technology, the precision of instruments and equipment continues to improve. The spacecraft may receive various disturbances or non-gravitational effects during its life cycle. The instrument is under the condition of microgravity, and small vibrations will cause serious damage to the instrument and equipment. influences. For example, space platforms are usually equipped with large-scale optical telescopes that require high environmental stability. When the vibration is large, the optical telescopes will not work normally and affect their performance; High-level space equipment, such as the secondary mirror of an optical remote sensor, needs to adjust the pose of the secondary mirror, and at the same time ensure a certai...

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Problems solved by technology

[0004] In view of this, the present invention provides a pointing and vibration isolation integrated multi-dimensional parallel platform and system to solve the problem that in the prior art, the vibration isolation system and the precision pointing system work independently, occupying a large space platform space, resulting in the volume of space equipment and weight issues

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