利用电流变阻尼铰抑制操纵鸭翼颤振试验研究  

Experimental Research on Flutter Suppression of a Control Canard by ER Damping Pivot

作　　者：杨智春[1] 李斌[1] 李斌 

机构地区：[1]西北工业大学飞机系,西安710072

出　　处：《机械科学与技术》2000年第z1期3-4,共2页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金(59805014);航空科学基金(98B53021)资助项目

摘　　要：设计制造了一个带电流变阻尼铰的操纵鸭翼颤振模型，并利用电流变阻尼铰阻 尼水平可随外加电场变化的特性，对模型进行了颤振抑制的风洞试验。试验结果表 明，采用开关控制方法，可以使模型的颤振速度提高约１３％。The viscosity of electrorheological (ER) fluid can be changed by varying the applied electric field. By using ER fluid as the damping medium, a new type of damping pivot was designed and used to suppress the flutter of a control canard model. The ER pivot was installed on the rotating axle of the control canard model, a set of leaf springs was used to simulate the flexibility of the pitching stiffness of the canard. Wind tunnel tests were performed and on/off control law was adopted. Results show that the critical flutter speed of the model is increased by 13 %.

关 键 词：电流变体 阻尼铰 颤振抑制 

分 类 号：TM214[一般工业技术—材料科学与工程]