随机激励下惯导支架结构参数优化

建立了基础激励下惯导装置振动响应的双自由度随机振动分析模型。分别用解析法和数值法推导了惯导系统加速度均方值的计算公式。以减振支架结构参数为控制对象，通过遗传算法和罚函数法进行了优化设计。分析显示，对复杂系统数值法的计算更为容易。仿真结果表明，两种方法的计算结果相近。

Optimum of Supporter for INS under Random Excitation

The double free degree random vibration analysis model of the response for inertial navigation system (INS) under base excitation was put forward in this paper. The computation equations of acceleration root-mean-square value for INS were derived through analytic and numerical method respectively. The optimum design was made by genetic algorithm and penalty function method when the structure parameters of the damping supporter were as the object parameters. The analysis showed that the computation of numerical method was easier than that of analytic method for complicated system. The simulation results illustrated that the computation results of the two methods were very similar.