Research On The Arresting Law Of Carrier-based Aircraft Landing

In order to develop the carrier-borne aircraft/aircraft carrier combat system with more security,efficiency and greater operational capability,it is necessary to intensify the research on relevant key technologies,among which,in-depth research on the technology of carrier-borne aircraft blocking landing is essential.The blocking landing of carrier-borne aircraft is quite dangerous.According to relevant statistics,among all carrier-borne aircraft/aircraft carrier accidents,about 80% of them occur in the process of blocking landing,so it is very important to study the blocking technology.The traditional hydraulic blocking device is large in volume and weight,complex in structure,high in maintenance cost and few blocking models.Therefore,it is necessary to study advanced arresting gear(AAG)with higher performance.In this paper,on the basis of the advanced blocking device,the structure was simplified.Taking the improved electromagnetic blocking device as the research object and adopting the joint simulation technology,the whole system model of the new blocking system with the blocking motor as the main energy absorption device was established.By analyzing the data obtained from the simulation experiment,the performance of the electromagnetic blocking device was studied.Firstly,the research background and meaning,development history and domestic and overseas research status of the shipboard structuring resistance technology was set forth in this paper,and the advantages and structural features of the advanced blocking device was introduced in detail,and the working principle of the advanced blocking device was introduced,and the research contents in this paper was clearly studied.Then,according to the limiting conditions of the maximum pulling force of the stop rope and the maximum overload of the carrier aircraft,the range of the resistance was determined in this paper.Based on the energy analysis method,the design obtained the expected resistance law,and through the establishment of model simulation to verify the feasibility of the law of resistance.Next,this paper took the blockage cable as the research object,and analyzed in detail the formation and propagation process of the blockage cable stress wave,theoretically and analyzed the wave equation of the blockage cable through reasonable hypothesis,and obtained six important characteristic parameters of the stress wave based on this analysis.The dynamic modeling theory of rope was studied.Based on the rope modeling theory and the idea of rigid body discretization,the finite element simulation model of the blocking cable of linear axle sleeve connection mode was established on the basis of ADAMS/View finiteelement simulation software and ADAMS 'CMD language parametric modeling method.Finally,based on the advanced blocking device,the structure of the electromagnetic blocking device was simplified,the mathematical model of the electromagnetic blocking device was established,and the control strategy of the blocking motor was given.MATLAB and ADAMS joint simulation technology,to achieve the blocking cable and blocking device of the joint simulation.Simulation experiments were carried out for aircraft with different initial landing speed and different quality,and the influence of aircraft landing on the performance of the blocking system was analyzed through the curve obtained from the simulation.By establishing the simulation model without stress wave,the influence of stress wave on the arresting process was analyzed.