| 航天设备力限振动试验复杂二自由度方法研究 |
| Complex Two-Degree-of-Freedom Method for Equipment Force-Limited Vibration Test |
| |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 中文摘要: |
| 在航天产品振动试验领域，力限方法采用力和加速度条件双控策略可缓解传统振动试验中的过试验，但力条件的确定困难，尤其对于设备级产品的试验存在源的界定问题。针对固定边界的设备级产品，介绍了复杂二自由度法用于获取固定边界下力条件的修正方法，对于其中关键的源和负载的质量参数给出获取方法，并应用于试验实例，为工程中力限条件的合理制定提供了参考。 |
| 英文摘要: |
| Force Limit Method can decrease the over-testing problem associated with traditional vibration testing by dual control of the force and acceleration. Force specification is difficult to estimate, especially for equipment vibration test that exists the source definition problem. This paper demonstrates a modified complex two-degree-of-freedom method adapted to fixed boundary conditions of the mounting structure. Some methods are also given to acquire the mass parameters of source and load, which are critical to the reasonably conservative force specification. Practical examples have been performed with the modified method to verify its validity, which provides reference for force specification determination. |
|
| 中文关键词: 力限 振动试验 过试验 航天器 复杂二自由度法 |
| 英文关键词:force limit vibration test overtesting spacecraft complex two-degree-of-freedom method |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2019.03.04 |
| 引用本文：杨正玺.航天设备力限振动试验复杂二自由度方法研究[J].计测技术,2019,39(3):. |
| 关闭 |
