光电稳定平台的MDO总体设计

针对小窗口大扫描角要求的光电成像导引头，在总体设计时按照多学科协同设计与优化（Multidisciplinary Design Optimization，MDO）的设计原则，通过并行的子空间多方案快速概念设计及排列组合优化，转化为工程设计的约束条件，进而指导分配光机系统和伺服稳定系统的设计权重，并在电子样机上对设计方案进行综合性能动态评估和迭代优化，最终确定了基于陀螺稳定反射镜物方扫描的方案，实现了设计指标:扫描范围-20~10（俯仰）/15（方位），窗口面积不超过通光孔径的2倍，且具有高精度和高动态的稳像能力。挂飞试验获得的图像与地面静态图像一致，证明了基于MDO对光电稳定平台快速开发的有效性和优越性。

Overall design of electro-optical stabilization platform based on MDO

The special requirements of an Electro-Optical(EO) image seeker for large scanning angle of small window, and the Multidisciplinary Design Optimization(MDO) design method was used in the overall design to get the optimum solution. The subspace parallel design with multi-scheme rapid conceptual design was carried out, and through the permutation, combination, and optimization, these schemes could be transferred to the constraints of engineering design, and distributed the design weight of opto-mechanical structure and servo stabilization system. Then the design schemes were dynamically assessed and iteration optimized, and got the final scheme of gyro stabilized mirror objective space scanning:the scanning range is -20-10(pitch)/+15(azimuth), the window area is no more than 2 times of the entrance pupil aperture, and satisfied the dimensional requirements and the image stabilization ability with high-precision and high dynamic range. The image obtained by flying test is almost the same as the ground static test image, and proves that MDO has the effect and superiority of rapid development of the EO stabilized platform.