https://www.masot.ir/ Modern Aviation and Technology en daily 1 Sat, 23 Aug 2025 00:00:00 +0330 Sat, 23 Aug 2025 00:00:00 +0330 https://www.masot.ir/article_235431.html Scientific and technological developments in the twentieth and twenty-first centuries have fundamentally transformed the global landscape. Among the most remarkable achievements of this era is quantum mechanics, which, through concepts such as superposition, entanglement, and the uncertainty principle, has laid the foundation for modern technologies. Quantum technologies in the defense sector—particularly in air power—enable complex simulations, system optimization, enhanced reconnaissance and navigation, as well as secure communications.This applied research has been conducted with the aim of policy-making and formulating national strategies for the utilization of quantum technologies in Iran’s air defense. The study adopts a mixed-method approach, combining policy analysis, futures studies, and qualitative analysis. Data were analyzed through thematic analysis, the Delphi method, SWOT analysis, cross-impact matrix, and scenario planning.Findings indicate that Iran possesses considerable scientific and research capacities, including distinguished scholars, the ability to localize technologies, and a solid research background in universities and defense centers. The study emphasizes that success in leveraging quantum technologies requires targeted policy-making, sustainable investment, strengthened university–industry–defense collaboration, and effective risk and security management. The proposed framework can support flexible and resilient decision-making in quantum-based air defense and contribute to enhancing defense capabilities while reducing national vulnerabilities. https://www.masot.ir/article_243191.html This study presents a finite element–based weight optimization framework for a composite UAV wing using ANSYS. The main objective is to minimize the structural mass while satisfying strength-related constraints by limiting lamina stresses within allowable material bounds. A parametric APDL model was developed to represent the wing geometry and key structural parameters (e.g., rib configuration and spar layout), and to define optimization design variables including the number of plies, ply orientations, and stacking sequence for carbon fabric and honeycomb-based components. The wing mass was taken as the objective function, while stress constraints were enforced using the maximum-stress criterion. The obtained results demonstrate a significant improvement over the baseline design, achieving a weight reduction from approximately 209 kg to 114 kg (about 45%) while also decreasing the maximum stress from about 421 MPa to 330 MPa, remaining within the material strength limits. Owing to its parametric nature and straightforward implementation, the proposed approach can be extended to different wing geometries, composite materials, and loading conditions for lightweight UAV structural design.