Flexible plate vibration form visualization method based on vision

Abstract

The invention discloses a flexible plate vibration form visualization method based on vision. A flexible plate vibration device is included, the flexible plate vibration device comprises a flexible plate, the flexible plate is provided with mark points, a binocular vision measurement unit is arranged in front of the flexible plate, the mark points and the flexible plate are within the view field range, and the binocular vision measurement unit shoots images containing the mark points and the flexible plate and inputs the images into a computer; the computer processes the acquired image based on an OpenCV visual library, and then interpolation is carried out based on a cubic spline function and a grid division algorithm to obtain more reference points; and each frame of vibration state of the flexible board is drawn based on the OpenGL graphics library to realize vibration form visualization of the flexible board.

Description

technical field [0001] The invention relates to the field of visualization of vibration patterns, in particular to a visual method for visualization of the vibration patterns of flexible plates. Background technique [0002] The main power device of spacecraft in space, the solar wing (also known as solar sail panel), a typical large-scale flexible plate structure, generally has structural characteristics such as large span, small damping, low rigidity, and flexibility. The solar cells on it pass Absorb solar energy to store electricity and provide the required energy for the normal operation of the spacecraft. In the process of spacecraft orbit control and attitude control, the work of the thruster or the control moment gyro will cause the surface of the solar wing to produce flexible deformation, which will excite the low frequency vibration of the solar wing structure, and this vibration state will last for a long time. With the rapid development of the aerospace industr...

AI Technical Summary

Problems solved by technology

The low-frequency vibration on the surface of the oversized solar wing will be more obvious, which will not only affect the normal operation of the spacecraft, but the continuous vibration will also cause fatigue impact on the structure of the spacecraft body, further reducing the service life of the spacecraft structure. Damage to the structure of the spacecraft body leads to the failure of the space mission

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