缓冲器参数对拦阻钩作动性能的影响研究

Influence of Damper Parameters on Actuation Performance of Arresting Hook

以某型舰载机收放、缓冲一体化拦阻钩装置为研究对象,分析了拦阻钩系统的工作原理和受力情况,在此基础上建立了拦阻钩动力学模型和液压系统模型,并通过拦阻钩作动试验对模型的准确性和可行性进行验证,采用联合仿真的方法研究了气腔初始填充参数及阻尼孔参数对拦阻钩动力学性能的影响。结果表明:随着缓冲器阻尼孔孔径的减小,拦阻钩收放时间增加,拦阻钩碰舰反弹后缓冲器压缩量呈指数减小,缓冲过载呈指数增加;随着气腔初始填充压力的增大,拦阻钩收上时间增长,放下时间缩短,缓冲器压缩量呈线性减小,缓冲过载呈线性增加。

Taking the retractable and buffering integrated arresting hook device of a certain type of carrier-based aircraft as the research object,the working principle and force of the arresting hook system are analyzed.On this basis,the dynamic model and hydraulic system model of the arresting hook are established.The accuracy and feasibility of the models are verified by the data of arresting hook actuation test.The co-simulation method was used to study the effects of initial filling parameters and damping hole parameters on the dynamic performance of the arresting hook.The results show that as the diameter of the damper orifice decreases,the retracting time of the arresting hook increases,and the displacement of the damper decreases exponentially after impacting with the deck,and the axial force of the damper increases exponentially.With the increase of the initial filling pressure,the uptime increases,the downtime is shortened,the displacement of the damper is linearly reduced,and the axial force increases linearly.