Experimental verification of the shock resistance performance of a vehicle-mounted display and control console

Abstract

This paper aims to enhance the safety and reliability of a vehicle-mounted display and control console under extreme shock loads. A combined methodology of finite element analysis and experimental validation was employed to investigate the shock resistance characteristics of the console both with and without shock absorbers. A finite element model of the console was developed, and transient dynamic analysis was conducted to compare deformation and stress distribution under Y-direction shock loading. Furthermore, shock tests were carried out using an aluminum alloy box as the experimental subject, both before and after the installation of spring shock absorbers, with acceleration responses measured at critical locations. The results indicate that the installation of shock absorbers leads to an average reduction of 86.2% in maximum stress and 90.7% in maximum deformation. In the box test, the acceleration response was reduced by 92.76%. Simulation results based on experimental data show strong agreement with the measured data, with an error margin of only 3.82% in the absence of shock absorbers. The findings demonstrate that appropriately parameterized shock absorbers can significantly enhance the shock resistance of the console. This research methodology and its conclusions provide valuable references for the structural design and shock resistance evaluation of vehicle-mounted display and control consoles and similar equipment.