Variable-frequency damping support device for space camera

Abstract

The invention relates to a variable-frequency damping support device for a space camera. The variable-frequency damping support device comprises an upper hinge plate (1), etc. The upper hinge plate (1) and a lower hinge plate (10) are respectively connected with outer connecting rods (an outer connecting rod I (2) and an outer connecting rod II (3)) and an inner connecting rod (7) through joint bearings (5) and pin shafts (6). Damping rubber layers (8) are filled among the outer connecting rod I (2), the outer connecting rod II (3)) and the inner connecting rod (7), controllable structure gaps are manufactured among the outer connecting rod I (2), the outer connecting rod II (3)) and the inner connecting rod (7) by virtue of division plates (9) and rigidness rubber layers (11), and finally the variable-frequency damping support device realizes supporting for the camera. By the gap design, the camera can show the variable-frequency properties of three different frequencies under low-order vibration, launching segment vibration and on-orbit gravity-free condition, the large damping effect is ensured, and the problem of influence of on-orbit micro-vibration of a satellite structure on camera imaging is solved.

Description

technical field [0001] The invention belongs to the technical field of aerospace optical remote sensors, and relates to a space camera support device, in particular to a frequency-variable damping support device. Background technique [0002] With the development of aerospace remote sensing technology, remote sensing cameras are constantly becoming larger and lighter, and the technical indicators of cameras are constantly improving, and the requirements for satellite platforms are becoming more and more stringent. Limited by processing technology, the flatness of the camera assembly surface on the satellite platform can no longer meet the requirements of the current camera. When the satellite is in orbit, the problem of camera image distortion caused by dynamic flutter of moving parts is also becoming more and more prominent. With the weight of the camera With the improvement of the camera, the tolerance of the camera to the vibration environment of the transmission section ...

AI Technical Summary

Problems solved by technology

The first form is adaptable to the unevenness of the camera assembly surface, but it cannot suppress the micro-vibration within 60Hz in orbit, and even the suppression effect is not obvious at around 100Hz, and it will cause obvious image distortion during the whole-satellite mobile imaging. The second form has higher requirements on the camera assembly surface, the system is relatively complicated, and needs to introduce pyrotechnics, which is not economical in use

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