Small reflector ultrahigh power thermal stability supporting structure

Abstract

The invention provides a small reflector ultrahigh power thermal stability supporting structure, and belongs to the technical field of the aerospace technology. The supporting structure solves the problems that in the prior art, a reflector is low in intrinsic frequency and poor in external disturbance resistance, a reflection mirror surface is large in shape change, the requirement for the assembly technique level is high, interchangeability is poor and mass production is difficult to achieve. The supporting structure comprises a mirror chamber and a flexible joint, the flexible joint and the reflector are in glue joint and fixed concentrically, the flexible joint is fixed in the mirror chamber and comprises a cylindrical barrel and multiple flexible single arms which are uniformly distributed on the outer side of the cylindrical barrel in the circumference direction and each flexible single arm is a double-layer flexible hinge. Under the action of temperature loads, in the process that thermal deformation stress deformation energy of the lens barrel is transmitted to the reflector, the thermal deformation stress deformation energy is absorbed when passing a flexible unload groove of the flexible joint, uniform deformation of the reflector is guaranteed, at the moment, surface precision slightly changes, the parts are fixedly connected, the requirement for the assembly technique is not high, and the supporting structure is good in interchangeability and high in external dynamic interference resistance.

Description

technical field [0001] The invention belongs to the technical field of aerospace and relates to a support structure applied to a small reflector, in particular to a support structure with ultrahigh thermal stability for a small reflector. Background technique [0002] As an important part of optoelectronic equipment, the reflector determines the imaging quality of the optoelectronic system. It is required that the reflector has a strong ability to resist external dynamic interference and the surface shape of the reflector changes little. The support structure of the reflector needs to reduce external interference on the reflector and the change of the surface shape of the reflector while effectively positioning the reflector. [0003] The support structure of small mirrors in the prior art is mostly in the form of peripheral support. The mirror is fixed in the lens barrel specially designed for it. The circle is fixed. The natural frequency of this kind of mirror support s...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a support structure with ultra-high thermal stability for small reflectors, which solves the low natural frequency of reflectors in the prior art, poor ability to resist external interference, large changes in the surface shape of reflectors, and high requirements for assembly technology. , poor interchangeability, difficulty in mass production

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