扰流激励下垂尾抖振响应主模态控制风洞试验研究  

Fin buffeting alleviation in disturbed flow by buffeting principal modal control method

作　　者：王巍[1] 杨智春[1] 张新平 

机构地区：[1]西北工业大学航空学院结构动力学与控制研究所,西安710072 [2]中航陕西飞机工业(集团)有限公司设计院,汉中723213

出　　处：《振动与冲击》2012年第16期18-21,共4页Journal of Vibration and Shock

基　　金：国家自然科学基金(11072198);高等学校学科创新引智计划(B07050);西北工业大学基础研究基金(JC201102)

摘　　要：采用压电结构的热弹比拟建模方法,进行了垂尾模型一弯模态和一扭模态响应的压电主动控制仿真。设计制作了一个垂尾气动弹性抖振模型以及两种形式的气流干扰源,用于在风洞中进行垂尾抖振实验及产生扰流对垂尾模型实施抖振激励。采用自主研发的弓形压电作动器,根据垂尾抖振响应控制的主模态控制思想,设计了垂尾模型抖振压电主动控制系统,进行了垂尾模型抖振响应压电主动控制风洞实验。结果表明,采用抖振主模态响应控制思想设计的垂尾抖振压电主动控制系统,可使垂尾模型抖振响应功率谱密度函数峰值降低50%以上。Fin buffeting causes severe fatigue problem for modern fighter. In this paper, buffeting principal modal control （BPMC） method was described and demonstrated for fin buffeting alleviation. Simulation work for the first bending and torsion mode response alleviation of a fin model using two arching PZT actuator （APA） was implemented. A piezoelectric fin buffeting control system was designed using BPMC method. A fin model, a delta wing and a blunt body were designed and made as test model and flow disturbers, experiment of the fin model buffeting active control in the disturbed flow of the delta wing and blunt body was implemented in a wind tunnel with adoption of APA. Test results indicate that the peak value of the power spectrum density function of the fin model tip buffeting displacement response causing by either of the two flow disturbers can be suppressed by more than 50%.

关 键 词：垂尾抖振 弓形压电作动器 压电主动振动控制 扰流激励 风洞试验 

分 类 号：V215.36[航空宇航科学与技术—航空宇航推进理论与工程] TB381[一般工业技术—材料科学与工程]