摘要
Abstract
In order to exclude the affecting factors on the Ground Vibration Test(GVT) and improve the precision of the test result, the numerical simulation model was established, and the affection of the suspension stiffness, sensor, and drive rod was studied. The result shows that the larger the suspension stiffness is, the stronger the inlfuence wil be. Sensor’s added mass mostly inlfuences the control surface’ rotation frequency. The more the sensors are, the smaler the test frequency wil be. In addition, the drive rod’s added stiffness wil improve some modes’ test frequencies.关键词
全机颤振风洞试验模型/地面共振试验/影响因素/悬挂刚度/传感器/激振杆Key words
aircraft flutter wind tunnel model/ground vibration test(GVT)/affecting factor/suspension stiffness/sensor/drive rod分类
航空航天
