Parallel Implementation of Structural Dynamic Analysis for Parachute Simulation

摘要

An iterative parallel finite element procedure for the simulation of nonlinear structural behavior of parachute systems is presented. The Hilber-Hughes-Taylor method is employed in this procedure for nonlinear implicit time integration. Parallel techniques derived from the geometrical parallelism algorithm are developed in a finite element code. This involves the parallel implementation of generating the tangent stiffness matrix and the effective force vector, solving the resulting linearized simultaneous system equations and other required operations. Two sample problems are presented to demonstrate the inherent features of parachute simulations and to analyze the efficiency of the parallel algorithms.