Dynamic Structural Response Estimation of a Printed Circuit Board Installed on a Microsatellite Due to a Half-Sine Impact/Shock Loading

摘要

The goal of this work is to assess the structural dynamic response of a printed circuit board (PCB) installed on the NCKU self-developed micro-satellite subjected to prescribed shock/impulsive loading environment using the vibration response spectrum method. The commercial finite element method (FEM) code - ANSYS was adopted to simulate the dynamic structural response of the electronic printed circuit board (PCB) structure installed in micro-satellite due to specified loading. A drop tower impact tester was used to generate the specific shock/impact loading environment. The purpose of this drop impact test is to generate the prescribed shock/impulsive loading to the PCB structure made of glass fiber reinforced plastic (GFRP) for the acceleration signal determination at specific locations on the PCB structure in question. An evaluation of the satellite structure component's integrity at these locations can be performed using the predicted dynamic structural response by means of vibration response spectrum method.