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 %.
出处
《机械科学与技术》
CSCD
北大核心
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
关键词
电流变体
阻尼铰
颤振抑制
ER fluid
Damping pivot
Flutter suppression
