Aircraft carrier hydraulic arresting gear arresting force modeling and simulation
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摘要: 以国内外普遍使用的某型航空母舰液压拦阻系统为研究对象,从其组成和工作原理出发.针对产生拦阻力的主要元器件,根据液压系统的传动基本理论建立了液压拦阻系统的拦阻器系统和滑轮缓冲系统的数学模型.利用该模型结合舰载机着舰动力学模型和拦阻索动力学模型进行了拦阻动力学的数值仿真,对比了仿真值与试验值的区别,分析计算了某型舰载机以不同重量、速度着舰的拦阻动力学过程.验证了滑轮缓冲系统能有效减缓拦阻索张力,且通过改变控制阀口通油面积可以实现不同质量飞机在基本相同的距离上实现安全拦阻,说明模型的合理性.Abstract: A certain aircraft carrier hydraulic pressure arresting system was studied. As the main arresting forcing producing components, the mathematical models of the hydraulic block system and pulley buffer system were established according to the basic theory of hydraulic transmission system. Using these two models, combining the dynamic models of the arresting cable and the aircraft-s landing process, a series of numerical simulations were carried out under different aircraft weight and landing velocity. The simulation value was compared with trial value and the difference was studied. The result showed that the pulley buffer system can reduce the tension of the arresting cable effectively and that the change of the control valve can realize the arresting of aircrafts with different weight within around 100m, which also verified the rationality of the model.
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Key words:
- aircraft carriers /
- arresting gear /
- hydraulic system /
- modeling and simulation
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