| 飞机复合材料气动冲击响应抑制技术研究 |
| |
| 引用本文： | 陈勇,高亹,陶宝祺,陈仁文.飞机复合材料气动冲击响应抑制技术研究[J].南京航空航天大学学报(英文版),2000,17(1):20-25. |
| |
| 作者姓名： | 陈勇 高亹 陶宝祺 陈仁文 |
| |
| 作者单位： | 1. 东南大学振动工程研究所国家火电机组振动工程研究中心,南京,210096
2. 南京航空航天大学智能材料与结构航空科技重点实验室,南京,210016 |
| |
| 基金项目： | 中国科学院资助项目，江苏省博士后科学基金 |
| |
| 摘 要： | 由于高频涡流的作用,飞机局部复合材料构件承受面外气动冲击载荷,产生累积疲劳损伤.本文通过在复合材料壁板表面粘贴压电驱动器,采用传感器测量构件在气动冲击下的响应,应用自适应振动前馈原理,控制驱动器的驱动应变,从而抑制其动态响应,达到减小累积疲劳损伤的目的.试验结果表明,主要模态的应变幅值能够得到有效抑制.
|
| 关 键 词： | 气动冲击 自适应结构 响应抑制 复合材料 |
RESPONSE SUPPRESSION OF COMPOSITES INDUCED BY BUFFETING AERODYNAMIC LOAD |
| |
| Chen Yong,Gao Wei,Tao Baoqi,Chen Renwen.RESPONSE SUPPRESSION OF COMPOSITES INDUCED BY BUFFETING AERODYNAMIC LOAD[J].Transactions of Nanjing University of Aeronautics & Astronautics,2000,17(1):20-25. |
| |
| Authors: | Chen Yong Gao Wei Tao Baoqi Chen Renwen |
| |
| Abstract: | One of the aerodynamic phenomena associated with high performance aircraft is the high frequency vortex-induced buffeting. The buffeting load can lead to high cyclic strain and stress,dramatically reduce the fatigue life of composite structures. In this paper, piezoelectric patches are bonded on the surface of composite panel. The dynamic response of the structure is measured by using bonded piezoelectric sensors. Filtered adaptive control algorithm is used to control the strain of piezoelectric actuators actively, so as to increase the modal damping coefficient of the composite panel, suppress the dynamic response and improve the fatigue performance of the structure. The feasibility of this method is verified in model experiments. |
| |
| Keywords: | aerodynamic buffeting adaptive structure response suppression composite material |
| 本文献已被 万方数据 等数据库收录！ |
|
