舰载机弹射起飞六自由度静平衡分析

Static Balance Analysis of Carrier-Based Aircraft Catapult Launch with Six Degrees of Freedom

静平衡状态是弹射起飞动力学分析的初始条件,也是进行弹射起飞动力学建模的基础。将舰船、飞机、起落架等视作具有独立质量的多运动实体,并分析描述它们之间的运动耦合关系,建立了舰载机静平衡状态下的六自由度数学模型,考虑了航母运动和甲板风以及海面气流扰动对飞机的影响。利用这一模型仿真计算了在不同情况下舰载机的静平衡状态,并分析了不同情况下舰载机的运动规律。计算结果与实际情况吻合,为舰载机弹射起飞六自由度动力学分析奠定了基础。

Static balance is the initial condition of catapult launch dynamic analysis, and the foundation of establis- hing the catapult launch model. Carrier, aircraft and landing gears, etc. are considered as multi - motion bodies that have their own masses, and the coupling relationships within these multi - motion bodies are also analyzed. The six degrees of freedom model of carrier - based aircraft is established in the condition of static balance, with the influences of carrier movement, deck wind and the airflow interference on aircraft considered. This model is applied to calculate and simulate the static balance of aircraft in different situations. The simulation and calculation results are consistent with the actual situation, which lays a foundation of dynamics analysis on carrier - based aircraft catapult launch with the six degrees of freedom model.