Patent ID: 7702490
Filing Date: 2010-04-20
Classification: G06F

Abstract:
1. A computer-implemented method of conducting a time-domain simulation of a shell structure using mesh-free analysis with adaptive discretization refinement, the method comprising: defining, in a computer, the shell structure by a structural geometry description file including a plurality of nodes and a reference three-dimensional (3-D) mesh, wherein the 3-D mesh includes a plurality of shell elements; mapping the 3-D reference mesh into a two-dimensional (2-D) parametric mesh in the computer, wherein the 2-D parametric mesh includes a plurality of integration cells, each of which corresponds to one of the plurality of shell elements; solving structural responses at current solution cycle of the time-domain simulation in the computer using mesh-free mathematical approximations pertaining to each of the plurality of integration cells; incrementing, in the computer, current solution cycle time by a predetermined time step to determine whether the time-domain simulation has reached a predefined total simulation time; when the time-domain simulation has not reached the total simulation time, performing adaptive discretization refinement for the plurality of the integration cells; otherwise displaying the structural responses of the time-domain simulation in a monitor coupling to the computer as desired; and said performing adaptive discretization refinement further comprising: