Folding rudder capable of monitoring and optimizing flutter phenomenon

Abstract

The invention provides a folding rudder capable of monitoring and optimizing the flutter phenomenon. The folding rudder comprises a folding module, a monitoring module, a processing and analyzing module and a driving module. According to the folding rudder, the flutter phenomenon is relieved or eliminated in a passive monitoring and active intervention mode, the real-time performance is achieved, the vibration condition of the folding rudder in the flight process of a guided weapon can be analyzed more accurately, and in addition, when the folding rudder of the guided weapon flutters, the problem can be solved in an active intervention mode, so that structural damage is avoided; and therefore, the vibration condition of the folding rudder in the flight process of the guided weapon can be monitored in real time, in addition, a computer analyzes and processes the data, so that the vibration of the folding rudder is relieved or counteracted in an active intervention mode, and therefore the flutter phenomenon is effectively prevented. The folding rudder has the advantages of being low in design cost, high in real-time performance, high in reliability, convenient in installation and free from influence on the original structure and equipment of the guided weapon.

Description

technical field [0001] The invention belongs to the field of weapons such as missiles and rockets with folding rudders, and in particular relates to a folding rudder capable of monitoring and optimizing flutter phenomena. Background technique [0002] The flutter of missile wings and rudder wings comes from the coupling effect of aerodynamic force, elastic force and inertial force on the elastic structure in the airflow, which is a self-excited vibration with non-attenuating amplitude. When the flight speed exceeds the flutter critical speed, the amplitude and dynamic stress of the wing and rudder with the lifting surface are very large, which may cause rapid structural damage and cause the missile to lose control. [0003] The bending stiffness and torsional stiffness of wings and rudders are one of the main factors affecting flutter. Especially for the folding rudder, because the folding rudder is not a one-piece model, there is still a gap after it is unfolded and locked...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of structural damage caused by the flutter of the folded rudder during the flight of the missile, the present invention provides a folded rudder that can monitor and optimize the flutter phenomenon, which can monitor the flutter of the folded rudder blade during the flight in real time, and can Reduce and counteract flutter phenomenon in real time, so that the amplitude and stress of the self-excited vibration of the folded rudder can not accumulate

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