李含笑,高宏,栾淏宇,范嘉铭

• 1:北京信息科技大学机电工程学院

摘要(Abstract)：

针对振动环境导致精密光学系统光轴偏离、光路失调的问题，设计了一种高稳定性电动调整平台，建立了一种基于弹性体动力学的有限元分析模型以评估动态特性。该模型将平台关键承载部件等效为弹性体，引入基于赫兹接触理论的非线性力学模型表征推杆与钨钢球间的复杂接触特性，实现了对整机刚柔耦合动力学行为的准确描述。通过随机振动仿真分析发现，横向振动对平台指向稳定性的影响最为显著。随机振动试验结果显示，试验值与仿真值的最大相对误差为7.19%，验证了动力学模型的有效性。在横向均方根加速度为0.5g的振动工况下，平台的最大角位移偏差为19.83μrad，展现出优异的指向稳定性。该研究不仅为高精密电动调整平台的抗振设计提供了量化依据，也为提升复杂动态环境下光学系统的指向精度与可靠性提供了有效的工程分析手段。

关键词(KeyWords)： 动力学建模;有限元分析;电动调整平台;振动环境

Abstract:

Keywords:

基金项目(Foundation): 十四五国防预研重点项目(50914050107)

作者(Author): 李含笑,高宏,栾淏宇,范嘉铭

DOI: 10.16508/j.cnki.11-5866/n.2026.04.010

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