A method for supporting and fixing a reflector

Abstract

The invention provides a method for supporting and fixing a reflecting mirror, which belongs to the technical field of space optical remote sensors. The method includes: first fixing the reflector on the bracket assembly, and filling the flexible support with damping glue and curing, the flexible support includes a first connection part and a second connection part, the first connection part is used for connecting with the bracket The frame assembly is connected, and the second connecting part is used to connect with the lens body frame. The first connecting part and the second connecting part are connected by a first flexible hinge and a second flexible hinge arranged orthogonally. The first flexible hinge and the second flexible hinge The rotation direction of the reflector is perpendicular to the optical axis direction of the reflector. The first flexible hinge and the second flexible hinge are provided with multiple glue injection grooves. The glue injection grooves are used to fill damping glue so that the tangential direction of the flexible hinge rotation It has damping; the bracket frame assembly and the lens main frame are fixedly connected by a flexible support injected with glue. The invention realizes the flexible support for the reflector and avoids structural damage caused by vibration.

Description

technical field [0001] The invention relates to a method for supporting and fixing a reflecting mirror, which belongs to the technical field of space optical remote sensors. Background technique [0002] The supporting structure of the aerospace remote sensor mirror usually includes a metal bracket and at least three pressing blocks arranged on the bracket, the metal bracket is used to support the mirror, and the pressing blocks are used to fix the bracket with reflector. [0003] In aerospace remote sensors, small-aperture mirrors are generally supported by rigid, semi-flexible and flexible structures. Among them, the existing flexible support structure usually uses flexible elements to realize the flexible connection between the mirror and the frame, such as using a flexible pressing block to directly connect the mirror and the frame, or using a pressing block and a pad to be arranged between the mirror and the frame. The flexible connection between the mirror and the fr...

AI Technical Summary

Problems solved by technology

[0004] Generally speaking, the higher the stiffness of the supporting structure of the mirror assembly, the higher the fundamental frequency under dynamic conditions, the smaller the stress response amplitude, and the safer the structure; Ability then becomes worse

The existing flexible support method is prone to structural damage under vibration conditions due to the large flexibility and low stiffness of the support structure and poor seismic performance.

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