| 陈雪晴,刘瑜,贺琼瑶,吴遥.直升机平台振动环境预测与振动环境谱设计方法[J].装备环境工程,2025,22(4):67-74. CHEN Xueqing,LIU Yu,HE Qiongyao,WU Yao.Prediction of Vibration Environment of Helicopter Platforms and Design Method of Vibration Environmental Spectrum[J].Equipment Environmental Engineering,2025,22(4):67-74. |
| 直升机平台振动环境预测与振动环境谱设计方法 |
| Prediction of Vibration Environment of Helicopter Platforms and Design Method of Vibration Environmental Spectrum |
| 投稿时间：2025-02-20 修订日期：2025-03-13 |
| DOI：10.7643/issn.1672-9242.2025.04.009 |
| 中文关键词: 直升机 周期信号 主成分分析 统计归纳 分析预测 振动环境谱中图分类号:V216.5+1 文献标志码:A 文章编号:1672-9242(2025)04-0067-08 |
| 英文关键词:helicopter periodic signal principal component analysis statistical induction analysis and prediction vibration environmental spectrum |
| 基金项目:合作基金项目(HDHDW59A010101) |
|
|
|
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 基于直升机平台振动环境实测数据，分析预测直升机振动环境，设计直升机平台振动环境谱。方法 基于直升机振动由宽频域随机振动与周期性振动分量叠加而成的特性，识别并分离周期信号，提出基于主成分分析的周期幅值预测方法。在此基础上，分别对周期信号和随机信号进行统计归纳和分析预测，进而合成振动环境谱。结果 使用此方法对直升机平台的振动数据进行处理，得到直升机平台的振动环境谱。结论 构建了直升机振动谱设计新范式，实现了直升机环境条件设计方法突破。 |
| 英文摘要: |
| The work aims to analyze and predict the vibration environment of the helicopter, and design the vibration environmental spectrum of the helicopter platform based on the measured vibration environmental data of the helicopter platform. Based on the characteristic that helicopter vibration was composed of the superposition of broadband random vibration and periodic vibration components, the periodic signals were identified and separated, and a periodic amplitude prediction method based on principal component analysis was proposed. On this basis, statistical induction, analysis and prediction were carried out for the periodic signal and the random signal respectively, and then the vibration environmental spectrum was synthesized. This method was used to process the vibration data of the helicopter platform to obtain the vibration environment spectrum of the helicopter platform. It constructs a new paradigm for helicopter vibration spectrum design, achieving a breakthrough in the design method of helicopter environmental conditions. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
