Design and Analysis of Avionics Rack for Space Application

Abstract

The avionics rack is a critical structural component used to support and protect electronic systems in spacecraft. The design must ensure structural integrity, vibration resistance, and reliability under launch and operational conditions. In this project, an avionics rack assembly was designed and analyzed using Siemens NX. The rack structure and its components were modelled and assembled to represent a realistic system configuration. Finite Element Analysis (FEA) was performed to evaluate the structural behavior of the rack under static loading and dynamic Loading conditions. The meshing process was carried out using tetrahedral elements for structural components and 2D shell elements for printed circuit boards (PCBs). Modal analysis was carried out to identify the modes and mode shapes of the structure. Random vibration Analysis was carried out to study how structure responds under unpredictable vibrations. Static structural analysis was conducted to determine deformation and stress distribution. The results obtained from the simulations help verify that the avionics rack design is capable of withstanding mechanical loads and vibration environments typically encountered in aerospace applications.