The dynamic stiffness of the unfolded wings is tested by the fundamental frequency experiments to verify the performance of the clearance elimination assembly. A prototype was developed to verify the ejection performance of the wing according to the input load characteristics. Modal analysis, harmonic response analysis, and random vibration analysis were conducted for the whole wings. The kinetic simulation is used to analyze the motion response during the action of the deployment mechanism. The relationship between the locking force and the support stiffness is revealed. The dynamic stiffness under the catapult clearance elimination state is modeled based on the fractal geometry and contact stress theory. The static stiffness of the wing under the clearance state and the deformation is analyzed.
The influence of the collision force on the motion state of the wing during the deployment is analyzed. The collision characteristics and the clearance elimination are studied for the deployment mechanism. The proposed clearance eliminator with shape memory alloy (SMA) effectively eliminates the clearance of the sliding pair and improves the support stiffness and stability of the deployed wing. Based on the slider-crank principle, the proposed deployment mechanism achieves fast and low-impact deployment of the wings. The paper proposes a new deployment mechanism with clearance eliminator. The deployment performance of the unfolded wing determines whether the winged missiles can fly normally after being launched, infecting the attack performance of the winged missiles. Machine learning for UAV autonomous control.Potential topics include, but are not limited to, the following: Particular attention will be given to high-quality papers that address significant advances in the design, modeling, and control of UAVs, as well as novel applications.
This Special Issue aims to contribute to the development of unmanned aerial vehicles in many areas. Every month brings new scientific papers pertaining to UAVs, which have become an even stronger accelerator for research in this field. Recently, we have experienced a huge increase in the development of unmanned aerial vehicles (UAVs). As the Editor of the Special Issue “Design, Simulation and New Applications of Unmanned Aerial Vehicles”, I would like to invite you to submit a paper on this subject.