Damping for Airbags

When simulating airbag deployment, using the classical uniform-pressure (CONTROL VOLUME) or non-uniform-pressure (ALE, Particle), users frequently encounter oscillations. These oscillations are generally categorized as local and global. To reduce both forms of oscillations, LS-DYNA provides two types of damping that are briefly discussed here. 1. Mass-Weighted-Damping The parameter MWD in *AIRBAG_{OPTION} keyword provides a means…

November 22, 2006 | by

General Guidelines for Crash Analysis in LS-DYNA

LS-DYNA is a general purpose finite element software and is designed for use in various applications. Based on the use of the software for a specific application, LS-DYNA offers several parameters that can be changed from their default values to improve the accuracy, robustness, and stability of the simulation. For performing crash analysis using LS-DYNA,…

November 1, 2006 | by