| 风洞模型加速度负反馈振动主动控制方法研究 |
| Active Vibration Control of Wind Tunnel Model Based on Negative Acceleration Feedback Control Algorithm |
| |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 中文摘要: |
| 针对尾撑式风洞模型强方向性振动问题，基于异位配置加速度负反馈控制器对风洞模型振动主动控制方法进行研究。首先，通过模态分析得到系统低阶模态振动的强方向性并基于系统特性设计了具有结构耦合性的内嵌压电陶瓷作动器的风洞模型振动主动控制系统。然后，基于异位配置NAF控制器分别设计了针对第二阶模态和前两阶模态的单模态NAF控制算法和双模态NAF控制算法。最后，进行了实验验证，结果表明：双模态NAF控制算法控制效果较好，前两阶模态阻尼比分别提高近13倍和近40倍，镇定时间分别缩短近11 s和近26 s。 |
| 英文摘要: |
| In order to suppress the very directional vibration of a wind tunnel model sting system, the active vibration control method was proposed based on non-collocated configuration negative acceleration feedback (NAF) control algorithm. The very directional character of the lower-order modes was obtained by modal analysis, and the active wind tunnel model vibration control system with structural coupling embedded piezoelectric ceramic stack actuators was proposed. Based on the non-collocated configuration NAF control algorithm, the single-modal NAF control algorithm for the second-order mode and the dual-modal NAF control algorithm for the first two-order modes were proposed. The impact test shows that the dual-modal NAF control algorithm is more effective than the single-modal NAF control algorithm. Through the dual-modal NAF control algorithm, the damping ratio of the first two-order modes increases by nearly 13 times and 40 times respectively, and the setting time shortens by nearly 11s and 26s respectively. |
|
| 中文关键词: 模态分析 振动主动控制 异位配置 加速度负反馈控制 锤击实验 |
| 英文关键词:modal analysis active vibration control non-collocated configuration negative acceleration feedback control impact test |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2020.02.02 |
| 引用本文：温正权，周孟德，姚 壮，唐琳琳，王琴琴，刘 巍.风洞模型加速度负反馈振动主动控制方法研究[J].计测技术,2020,(2):. |
| 关闭 |
