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Abstract

This chapter presents techniques relevant to finite element modeling of optical mounts and other support conditions. The treatment given to developing models of local mounting hardware such as adhesive bonds and flexures is aimed to give the reader various options and suggested practices for representing such hardware accurately and as simply as possible. Employment of idealized mounting configurations is presented to assist the analyst with simplified representations to improve the simplicity of models used for early design-trade studies. The discussion of the modeling of test supports illustrates how the reader may predict errors induced by how the optic is supported while being tested. Lastly, modeling the process of assembly is presented as a tool to understand the impact of locked in strains induced by the processes of integrating multiple optical subsystems and components together. As in Chapter 5, a key concept in developing models of such mounting hardware is understanding how the results of the analysis will be used and allowing such understanding to guide the specific modeling techniques employed. For example, the modeling techniques used to represent mounting flexures can be very different for the analysis goals of predicting the deformation optical surfaces versus predicting the stress levels in the flexures themselves.

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CHAPTER 6
52 PAGES


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