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为了研究甲板运动对舰载机弹射起飞性能的影响,为弹射起飞控制策略设计提供依据,首先分析了舰载机弹射起飞受力与运动情况,以及弹射器与起落架等对飞机产生的力和力矩;建立了舰载机弹射起飞的动力学模型,并设计了弹射过程中的增稳飞行控制律;最后,在中等海况下对弹射起飞的过程进行了数值仿真。仿真结果表明,离舰时不同相位的甲板运动对飞机起飞将产生不同的影响,甲板纵摇对舰载机离舰后下沉量影响较大。同时,甲板横摇对舰载机离舰后侧向偏移和姿态影响很大,对离舰后下沉量也会产生影响。
In order to study the influence of deck movement on the launching performance of carrier-based aircraft ejection and provide the basis for design of control strategy of launching take-off, firstly, the force and movement of take-off and launch of carrier-based aircraft are analyzed, The dynamic model of take-off of carrier-based aircraft was set up, and the augmented flight control law was designed in the course of launching. Finally, the numerical simulation of the launching process was carried out under medium sea condition. The simulation results show that the decks with different phases have different effects on the take-off of the aircraft. The deck pitching has a great influence on the post-ship subsidence of the aircraft. At the same time, the deck roll has a great impact on the lateral offset and attitude of the carrier-based aircraft and the impact on the subsidence caused by the ship.