Research On Bonding Process Simulation And Stress Analysis For Plane Optical Components

In the manufacture of optical engineering, traditional bonding techniques are used in lenses, prisms, optical systems for precise positioning assembly bonding, fixing, sealing, damping and structural reinforcement. But bonding the half bearing 37 for the design of the connection points of the support structure of the large thin aspheric processing or use of the carrier structure has seldom used. Structural adhesive bonding in the domestic self-developed design large optical mirror don’t have more successful research and development. As more high-strength aluminum, Invar, titanium, and other optical materials are widely used in optical manufacturing engineering, structural bonding develops to the direction of structural connection inevitable. Therefore, the optical assembly and design of the lens body is bound to "colloidal adhesion model" evolved from "mechanically fixed pattern." In view of this, the project is designed to meet the needs, urgent need for adhesive joints typical optical engineering in large aspheric polishing system of dynamic static load capacity for scientific and rational evaluation. And adhesive properties are expected to put forward technical indicators to ensure that non-spherical primary mirror 37 points bonding thin supporting structure and the whole system continues to operate under effective and reliable service environment. So, in this thesis, the performance of the adhesive joints was systematically researched which provides an effective adhesive design for the specific application of engineering. In response to these problems, specific research work was carried out in the following aspects:1. Based on the bonding mechanism, the thesis established the adhesion test and the process, standardized and the unified bond test process and test specimens prepared to carry out research performance bond. Based on the engineering design of the proposed bonding performance test specifications, technical specifications to meet the adhesive properties, carry out the relevant tests to characterize the adhesive properties, divided into the following processes: by PW material testing machine tensile load strength test, differences in comparison with the adhesive strength of the joint service body strength properties, get real and reliable experimental data provide a reference for the design and simulation of Chapter IV of the project, but also to verify the reliability of the process; conducted adhesive fluid state performance parameters characterization tests; bonded substrate surface characterization tests. By bonding characterization techniques form a more mature technology and process of optical connector bonding which provided more scientific and rational research tools for adhesive properties of the optical connector.2. For optical mirror and mirror bonding interface bonding structure of the uncertainty caused by stress and stress surface shape error, this thesis based on the finite element software ANSYS WORKBENCH, optical mirrors and mirror adhesive bonding structure stress analysis simulation, were investigated bonding interface bonding stress optical mirror and mirror assembly and surface shape error of the size of the three stress-induced changes in the structural parameters under. Followed by the use of finite element modeling layer thickness parameters were changes on the mirror and the mirror surface error bonded structure analysis; analysis parameters on the thickness of the adhesive mirror surface error of optical mirror and mirror; the impact of mirror surface error of mirror and mirror adhesive components was analyzed. The rule of surface error variation and variation of the bonding interface stresses were obtained.3. According to the results of simulation analysis, and combined with practical work the usual mirror and mirror adhesion test, the thesis’ s experimental select caliber ?100 K9 glass mirror, mirror adhesive deformation experiments, mainly on a six-uniform load on the mirror stick then affect the degree of surface error. Preliminary tests found that: non-uniformity and consistency in the presence of the layer thickness of the bonding process parameters, alignment errors, And errors was caused by environmental parameters and cavity length changes of interferometer are the main reason for the error of surface shape.