Computational modeling study demonstrates weight reduction in naval antenna structures while avoiding shock frequencies, indicating cost-effective design for combat weapon systems.
The antenna structure of the close-in weapon systems, which is integrated into the machine gun, needs to be lightweight to reduce the load on the gun’s driving. Additionally, the antenna structure must ensure structural integrity against shock loads to guarantee survivability in various naval combat environments. Although topology optimization is commonly used for lightweight design, it requires transient response analysis, which is significantly costly. In this study, we propose a modal-based structural optimization method that ensures structural integrity for lightweight design by considering the frequency characteristics of shock loads and the dynamic characteristics of the structure. The optimization problem was defined using constraints to avoid the natural frequencies of the structure from the frequency range of the shock loads, and objective function that reducing mass of the structure. To verify the optimization method, modal and transient response analyses of the lightweight model obtained were performed, and the structural integrity of the antenna structure was evaluated.
No takes yet. Share an insight, caveat, or question.
Kim et al. (2023) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: