Dynamically-Positioned Search Domain Used In Numerical Simulation Of An Impact Event Between Two Objects

摘要

Dynamically-positioned search domain in a time-marching numerical simulation of automobile crashworthiness is disclosed. A first computerized model representing a first object and a second computerized model (e.g., FEA model) representing a second object are received in a computer system. A time-marching numerical simulation of an impact event between the first and the second objects is conducted. Based on user-specified parameters, a search domain representing three-dimensional space of interest for detecting contacts between first and second objects is established. At each solution cycle of the time-marching simulation, search domain is repositioned as the second model deforms. Structural behaviors obtained in time-marching numerical simulation include effects from detected contacts within the search domain. Any finite element having broken free from the FEA model and being located outside of the search domain is excluded from further detection of contacts and deleted from the calculation in the simulation.