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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers >Dynamic characteristics of multifunctional structure for spacecraft
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Dynamic characteristics of multifunctional structure for spacecraft

机译：航天器多功能结构的动力特性

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摘要

The minimum cost is an important aspect of the spacecraft design. A proposed approach is the multifunctional structure technology, which fully integrates subassemblies and performs both structural and other functions for spacecraft. By combining the structural and functional subsystems into a single unit, the mass and volume savings can be realized. In order to investigate the dynamical properties of the multifunctional structure, which contains viscoelastic components, sine-sweep tests and random vibrations are carried out in present paper. The experimental results show that the multifunctional structure could survive the vibration environment. The first resonance frequency decreases with increment of the testing levels, and the base frequency of the multifunctional structure is larger than 100 Hz for all tested loading cases, meeting the frequency requirement for most spacecraft platforms. The multifunctional structure in this paper has successfully combined the structural and battery function, indicating potential for future lightweight and cost-saving spacecraft application.
机译：最低成本是航天器设计的重要方面。一种提议的方法是多功能结构技术，该技术完全集成了子组件并同时执行航天器的结构和其他功能。通过将结构和功能子系统组合为一个单元，可以实现质量和体积的节省。为了研究包含粘弹性成分的多功能结构的动力学特性，本文进行了正弦扫描测试和随机振动。实验结果表明，该多功能结构能够经受住振动环境的影响。第一共振频率随着测试水平的增加而降低，并且在所有测试的载荷情况下，多功能结构的基本频率均大于100 Hz，满足大多数航天器平台的频率要求。本文中的多功能结构已经成功地将结构和电池功能结合在一起，为将来的轻巧和节省成本的航天器应用提供了潜力。

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