固定太阳翼展开后外弯基频的工程计算

Engineering-approximate Method of the First Mode Frequency of Deployed Solar Wings without Yokes

太阳翼是航天器电源分系统的重要组成部分。以刚性基板的固定太阳翼为研究对象,针对航天器总体方案设计阶段的特点,基于"动-势能驻值原理",将固定太阳翼等效简化为附集中质量的悬臂梁,并由此推导出固定太阳翼外弯模态基频的近似解析解,提出了展开后固定太阳翼外弯模态基频的工程近似方法,为今后航天器总体设计人员提供了简单、可靠的分析方法。

Solar wing is one of the most important components in spacecraft. The engineering-approximate method is proposed for the first mode frequency of deployed solar wings without yokes at the stage of the system concept design. Based on ＇ Variational Theory＇ , the deployed solar wing is equivalently assumed to be a cantilever beam with mass particles, and a close-form solution for its first mode frequency is achieved. This solution will provide an easy and reliable analytical tool for the system engineers of spacecraft in future.