控制面间隙非线性由控制面与主翼的铰链处各附件的松动等因素导致,是一种常见的非线性问题。这种非线性会导致机翼发生混沌运动等不稳定现象。在飞行器飞行速度大于机翼的颤振速度的情况下,会使机翼发生极限环振荡。R.Vasconcellos等人通过线性等效的方法仿真了开环系统的状态变化。S.Fichera等人对含控制面间隙非线性的T-tail型机翼的开环系统做了数值仿真,并进行了实验验证,得到控制面间隙会导致极限环振荡。李道春 The control plane clearance nonlinearity is caused by the looseness of the attachment of the control plane and the hinge of the main wing, and is a common non-linear problem. This non-linearity can cause instabilities such as chaos in the wing. In the case of an aircraft flying at a speed greater than the flutter speed of the wing, limit-ring oscillation of the wing occurs. R.Vasconcellos et al. Simulated the state changes of the open-loop system by a linear equivalent method. S.Fichera et al. Do the numerical simulation of the open-loop system of T-tail airfoil with nonlinear controllability gap, and verify the experimentally that the control plane clearance will cause the limit cycle oscillation. Li Daochun