Author:
Hu Yi,Liu Li,Chen Mengwei
Abstract
Abstract
Based on the response data of the frontal impact test of the trolley, the frontal impact simulation and analysis of the double-tube model of the trolley were carried out using finite element software. Starting from the thin-wall deformation mode, acceleration and energy curve changes as response indicators, the error between simulation and experiment is studied. With the goal of improving the simulation accuracy of the model, the influence of strain rate effect on the collision response is studied, and the deformation mode and acceleration curve are compared with those without strain rate and actual vehicle test. The final result shows that considering the strain rate effect is obviously better than not considering the strain rate in terms of the acceleration peak and the number of thin-wall deformation folding.
Subject
General Physics and Astronomy
Reference8 articles.
1. Fibre composite strengthening of thin-walled steel vehicle crush tubes for frontal collision energy;Bambach;Thin-WalledStructures,2013
2. Research on the collision method of offset collision trolley based on restraint system simulation;Xu,2014
3. Data analysis for parallel car-crashsimulation results and model optimization;Mei;Simulation Modelling Practice and Theory,2008
4. Study on the collisionperformance of a composite energy-absorbing structure forsubway vehicles;Peng;Thin-Walled Structures,2015
5. Improving FEM crash simulation accuracy through local thickness estimation based on CAD data;Ferreira;Advances in Engineering Software,2014