Analysis Of Impact Response Of An Electronic Equipment On Ship

Electronic equipments have become the key factor of informatization, automation and intelligence of armed devices, and electronic equipments on ship are the foundation of the informatization establishment of warship devices. Under real working environment, electronic equipments would be shocked by various kinds of mechanical force inevitably, especially vibration and shock, that could bring danger harm. Therefore, improper structure design may result in damage, even failure to the electronic devices.This thesis studied the typical electronic equipment on ship. Through reasonable simplification of the model, use the finite element analysis software ANSYS to create the finite element model, including electronic cabinets, printed circuit board, power and other components. According to the Standard of environmental test, simulate and analyze the shock test of electronic equipment.On the base of structure dynamic theory, modal analysis and transient analysis are conducted in the FEA environment ANSYS. Model's boundary is applied with sinusoidal acceleration. And then the anti-shock performance of the important components of the devices under impact circumstance is researched through the shock dynamic response result obtained.Based on theoretical analysis and numerical simulation, the anti-shock performance of the electronic devices on ship is improved through several methods, including adding damping elements, raising the stiffness of the devices, change of the distribution of electronic components, and etc. Comparing the different methods above, the optimization design is proposed, which could improved the anti-shock performance a lot.Through the analysis of this paper, we had a clearer understanding of the dynamic characteristics of electronic equipment and the performance impact it. The research in this paper has a reference value in improving the performance of electronic equipment impact and the dynamics design of electronic equipment.