航空拖曳诱饵系统机动过程缆绳张力仿真

doi:10.7527/S1000-6893.2021.24495

Abstract

Abstract: To solve the problem of strength design of towing cable during the development of aerial towed decoy system, the cable tension during maneuvers is simulated in this paper. The mass spring damping model of the cable and the six-degree-of-freedom dynamic model of the decoy are established in the simulation. Cable tension during two typical flight maneuvers are studied:the linear accelerated motion and the turning maneuver motion. The influences of aircraft acceleration, flight height, cable elastic modulus and cable diameter on cable tension are also analyzed. The results show that cable tension is related not only to aerodynamic forces and gravity of the system, but also to inertial forces. Due to the time lag during transfer of tension in the cable, cable tension fluctuates during maneuver. The fluctuation of tension is related to aircraft acceleration, cable elastic modulus and cable diameter. The cable is subjected to a peak tension during the turning maneuver, which increases along with the turning angular velocity.

Key words: towed decoy, mass spring damping model, cable tension, time lag, fluctuate

CLC Number:

V212.1

DU Yijiang. Simulation on cable tension of aerial towed decoy system during maneuvers[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(9): 224495-224495.

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Simulation on cable tension of aerial towed decoy system during maneuvers

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