Multi-dimensional multi-stage shock absorption device used for optical payloads

Abstract

The invention belongs to the field of the astronautical technology, and particularly relates to a multi-dimensional multi-stage shock absorption device used for optical payloads. The multi-dimensional multi-stage shock absorption device comprises an installation substrate, an optical payload assembly, an optical payload assembly connector, an optical payload assembly supporting part, an optical payload assembly pressing part and a steel wire rope shock absorber, wherein first shock absorption pads are arranged in the contact positions of the optical payload assembly connector, the optical payload assembly supporting part and the installation substrate; second shock absorption pads are arranged in the contact positions of the optical payload assembly connector, the optical payload assembly pressing part and the optical payload assembly. The shock absorption device can be used in the combination mode of parallel-connection installation through the steel wire rope shock absorber and multi-stage serial-connection and parallel-connection of flexible materials, can effectively reduce the shock magnitude, transmitted to three translations and three rotations of the optical payloads, of a satellite body or other execution mechanisms, have a good shock buffering and isolation effect, and have the advantages of being easy to use, adjustable in rigidity, high in adaptability and the like.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a multi-dimensional and multi-stage damping device for optical loads. Background technique [0002] With the development of aerospace technology, the precision requirements of spacecraft for high-resolution sensitive loads are getting higher and higher. During the operation of the spacecraft in orbit, various high-frequency micro-vibrations will be induced due to attitude adjustment, solar panel deployment, orbit change and complex space environment changes, which will affect the working accuracy and service life of the optical load. [0003] Usually, the method of reducing the above-mentioned micro-vibration includes vibration isolation of the vibration source and vibration isolation of the payload. Patent CN102759927B discloses a method for improving the imaging quality of optical loads by using a multi-stage vibration isolation platform. The vibration isolation...

AI Technical Summary

Problems solved by technology

The vibration isolation platform can be installed between satellite actuators such as flywheels and control moment gyroscopes and satellite bodies, or between optical payloads and satellite bodies; by installing a number of vibration isolation platforms, the imaging accuracy and stability of optical payloads can be solved. However, it also increases the difficulty of the structural design of the vibration isolation platform, occupies a large space for equipment in the satellite, and increases the mass of the satellite, etc.

Patent CN102486212B discloses a multi-degree-of-freedom vibration isolator and system for a satellite payload. The proposed vibration isolator arranged in a certain geometric configuration forms a vibration isolation system installed between the payload and the satellite. Inconvenient installation and other problems

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