Astromesh deployable reflector vibration detection device and method

Abstract

The invention discloses an astromesh deployable reflector vibration detection device and method. The device comprises an astromesh deployable reflector, a vibration driving mechanism and a vibration detection mechanism. The vibration driving mechanism is connected with the astromesh deployable reflector and used for driving the astromesh deployable reflector to vibrate. The vibration detection mechanism comprises two groups of binocular vision systems, a cubic supporting frame, a plurality of acceleration sensors and processing equipment. The binocular vision systems are symmetrically arrangedon the cubic supporting frame and used for detecting mark point areas on the surface of the astromesh deployable reflector; the acceleration sensors are arranged on the astromesh deployable reflectorand uniformly distributed around the astromesh deployable reflector; the processing equipment is connected with the binocular vision systems and the acceleration sensors. The astromesh deployable reflector is detected by vision and the acceleration sensors, and accuracy of detection results is improved by combination of advantages of the two detection modes.

Description

technical field [0001] The invention relates to a vibration detection device, in particular to a ring truss expandable antenna vibration detection device and method, belonging to the field of vibration detection of space extension structures. Background technique [0002] Deployable communication antennas are key spacecraft subsystem components used in various mission applications, such as deep space probes, communications, reconnaissance, and environmental monitoring, and play an integral role in modern aerospace applications. [0003] The space communication environment is flooded with different electromagnetic signals of various frequencies or energies. In order to quickly and accurately identify target information, the increasing demand for high gain and high resolution motivates the enlargement of the antenna aperture. [0004] However, due to limitations in the rocket's current delivery capabilities, the mass and volume of the antenna is limited. Therefore, deployabl...

AI Technical Summary

Problems solved by technology

Many existing studies focus on the tension analysis of the cable-net structure based on finite element analysis during the antenna deployment process, but there are few studies on the vibration after the antenna deployment is completed.

At present, many experimental studies only stay in the simulation research on simple structures such as cantilever beams and aircraft wings, and the research on complex and deployable flexible antenna structures is still insufficient.

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