【摘要】 本文运用多约束问题的最优化理论并结合结构设计方法,对三维空间中惯导平台支撑结构的优化问题进行了研究。针对惯导平台的高精度、空间约束特性以及对外界环境噪声敏感的特点,将支撑结构的自然频率范围、结构空间位移以及强度特性作为约束条件对结构的截面尺寸和整体支撑结构的重量进行了优化。优化结果表明采用多约束变量优化设计能够有效发挥材料性能,新的设计方案能够改善惯导平台支撑结构的动力特性、减轻重量以及提高系统可靠性,对惯导平台支撑结构的实际设计有较大参考价值。更多还原

【Abstract】 In this paper, the optimization of the supporting structure of inertial navigation platform is studied based on multi-constraint optimization analysis and structure design. In allusion to the supernal precision, high sensitivity of environmental interfere and the spatial constraint of the inertial navigation platform, the range of intrinsic frequency, the spatial displacement and the intensity are selected to form the restraint, and the sectional dimension , the weight of the supporting structure are optimized. Several load conditions are calculated to optimize the supporting structure. The analysis results indicate optimization design presented in this paper can improve the inertial navigation platform dynamic characteristic, lighten the supporting structure weight and enhance the supporting structure reliability. It is valuable to the design of the supporting structure of inertial navigation platform.更多还原