Finite Element Analysis of Typical Ground Based Composite Sandwich Radome
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 12
Abstract
Radome encapsulates the Radar and serves as radio frequency transparent shield to the antenna. Radome protects the antenna from external environments which are detrimental to the Electromagnetic performance of the radar. Ground based radomes which house the ground based radars are generally large spherical truncated structures constructed with composite sandwich panels. Essentially, geometry and material selection of the radome is driven by the Electromagnetic design and performance. The structural design of the radome is mainly based on the aerodynamic loads on the radome.In this thesis, based on detailed literature survey, technical specifications of a typical ground based radome is considered. The aerodynamic loads on the radome are assumed as per appropriate standards. Detailed FE analysis considering sandwich composite material with varying aerodynamic loads and actual boundary conditions is carried out. The pre-processing and post processing of the FE model are carried out using Hypermesh and MSC Nastran is used as the Solver. The results are extracted from the FE analysis and detailed Failure Analysis of the composite structure is carried out.
Authors and Affiliations
Pavan Raj S, Dr. H. K. Rangavittal
Keywords
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