摘要
将计算精度高的流场和电磁场求解算法引入到飞行器外形多目标优化设计中,研究了气动特性和雷达散射截面算法计算精度对外形设计结果的影响。以无人机外形气动与隐身一体化设计为例的研究结果表明,低精度优化设计的外形在实际应用中难以获得预期的性能,采用高精度计算模型的优化设计可以获得性能更优的外形。
The high-precision algorithms about CFD and electromagnetism are inducted in the aircraft configuration multi-objective optimization design. For the aerodynamic performance and the radar cross section, the influence of the computational method models precision on aircraft configuration optimization design is researched. An unmanned air vehicle configuration is designed to improve the aerodynamic performance and the stealth performance as an example. The results show, the configuration designed by using the low-precision algorithms can not acquire the anticipative performance in fact, and the configuration designed by using high-precision algorithms is of better performance than the low-precision optimization configuration.
出处
《飞行力学》
CSCD
北大核心
2009年第6期14-17,共4页
Flight Dynamics
基金
国家自然科学基金资助项目(90205020)
关键词
雷达散射截面
多目标优化
无人机
radar cross section
multi-objective optimization
unmanned air vehicle
