Design and Finite Element Analysis of Light Weighted Mirror for Space Applications

This Paper describes the design, finite element analysis of a light weighted mirror for space applications, particularly a "Scan mirror".As this is a Space application, weight has to be optimised.So, these mirrors are undergone weight reduction.This reduction in weight must ensure that the stiffness of material remains within the tolerance level with maximum amount of material removed.Main requirement here is the stiffness of the material so the deformations under self-weight must remain as minimum as possible.The deformation tolerances allowed here are in nanometer level.Therefore, different patterns are designed on to the back side of mirror, then analysed with different material assignments that are acceptable for mirror.