| 摘要 |
PROBLEM TO BE SOLVED: To provide a system and a method of simulating an explosion in time-marching finite element analysis. SOLUTION: According to one aspect, the method is configured for increasing user (e.g., engineer or scientist) productivity by reducing computation time of simulating fluid-structure interaction due to an explosion. The method includes a creation of a finite element analysis model that includes structure, surrounding fluid, a blast source of the explosion and a single layer of boundary elements each having a segment representing a boundary of the fluid facing the blast source. Each boundary element is associated with a particular finite element representing the fluid at the boundary. The boundary elements are configured to be situated between the blast source and the structure such that the simulation is carried on a set of boundary conditions specified thereon. The boundary conditions include a set of nodal velocities that are determined from the empirical formula (e.g., Friedlander equation). COPYRIGHT: (C)2011,JPO&INPIT |
