Abstract：Optimization design for anti-bird strike and comprehensive optimization design for anti-bird strike and electromagnetic performance of honeycomb core composite radome structure was carried out. The optimization variable is the total thickness and ratio, etc, of sublevel radome. Optimization objective for anti-bird strike is to minimize the damage area of radome and to protect the equipment safety in the radome, which is realized to minimize the damage element number of radome and residual kinetic energy of bird in the numerical calculation. Addition to meeting above objectives, optimization objective for anti-bird strike and electromagnetic performance needs to reach the optimization values of electromagnetic parameters. The explicit dynamic analysis program LS-DYNA and electromagnetic analysis program FEKO were integrated in the optimization software. Chang-Chang model was used to simulate the damage of composite shell element under impact load. The optimization results of an example showed that the appropriate set of optimization can realize optimization requirement of honeycomb core composite radome structure for anti-bird strike and electromagnetic performance and also enhance the engineering design efficiency.
2013, Vol. 32 
