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YZL16是 K8飞机的前轮操纵减摆器 ,其操纵和减摆阻尼的液路相互耦合 ,给设计带来了新的课题。文中采用数字仿真方法研究了 YZL 16静态阻尼与操纵状态两种工况下的工作特点。仿真中考虑了油液的压缩性 ,采用阻尼长孔的流量系数计算公式 (流量系数是随压差或流量变化的 )取代常用的薄壁小孔的固定流量系数。仿真结果与试验结果吻合良好。文中还介绍了阻尼孔直径、阻尼阀的泄漏、控制阀流量特性、油液含气量等各种因素对静态阻尼与操纵特性的影响以及静态阻尼与动态阻尼的关系
The YZL16 is the front-wheel maneuvering levitation reducer of the K8 aircraft. Coupled with the fluid path of damping and damping, the YZL16 brings new challenges to the design. In this paper, the digital simulation method is used to study the working characteristics of YZL 16 under both static and dynamic operating conditions. In the simulation, the compressibility of the oil is taken into account. The formula of the flow coefficient of the damped long hole (the flow coefficient changes with the pressure difference or the flow rate) is adopted instead of the fixed flow coefficient of the commonly used thin-walled small hole. The simulation results are in good agreement with the experimental results. The paper also introduces the influence of various factors such as the diameter of orifice, the leakage of the damping valve, the flow characteristics of the control valve and the gas content of the oil on the static damping and maneuvering characteristics as well as the relationship between static damping and dynamic damping