为了保证惯导系统在复杂力学环境下稳定的工作,文中基于粒子群优化算法,在多约束条件下对惯导系统开展了缓冲减振优化设计。文中将惯导缓冲隔振系统简化成六自由度系统的振动模型,与有限元模型对比验证之后,通过粒子群优化算法进行了并行搜寻,快速、高效的获得了最优解,给出了减振效果较好的参数分布范围。通过数值分析结果对比、讨论得出:在保证强度要求下,橡胶隔振垫最好选择邵氏硬度较低的材料,其高度和内、外径差异尽量选择较大的数值。

To improve working stability of inertial navigation system in complex mechanic environment, optimization on shock-isolation for the system was operated under several constrained conditions by using particle swarm optimization method (PSOM). In this research, the system was simplified as six-degree vibration system model which was certified by comparing its results and those from finite element model. Then, the most optimal result was obtained rapidly and efficiently in the process of parallel research. Furthermore, optimal parameters were concluded and some useful conclusions were presented as follow: the low shore hardness rubber materials, great height and little difference between inner and outer radius of rubber isolators are preferred whenrequired strength is achieved.