Finite element simulation in fabrication of high-precision reflector panels

摘要

Millimeter and sub-millimeter wave observations, however, which largely depend on the instrumentation techniques,provide vital experimental verifications for the theoretical studies of stars formation. To obtain the stronger and moreprecise radio spectrum signals, high precision reflector panels that are demanded in great amount especially for the large-apertureantenna and antenna-array. Many years, experts have put emphasis on the precise forming of reflector panels.This paper presents the high-precision panels with a sandwich-type construction of one skin-plate and one aluminumbackup structural combined with structural adhesive, with high precision modules as the fundamental condition. Theskin-plate fit the module well due to its flexible. The structural adhesive, with good flow-ability, automaticallycompensate the deviations between the skin-plate and the backup structural. In the end, individually shaped sandwich-likepanels assemble up the high surface-accuracy reflectors. The internal stress analysis of skin-plate and structuraladhesive are of utmost importance. Therefore, several kinds of skin-plate and structural adhesive in different materialproperties are listed and simulated with finite element method (ANSYS). Based on the simulation results, processingparameters to panel fabrication are determined more efficient and accurate.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.