硬式空中加油未对接系统建模与仿真

以硬式空中加油未对接系统为对象,考虑了加油机与伸缩管之间的相互作用,运用多体系统动力学中的牛顿-欧拉法对其进行建模。通过分析加油机与伸缩管间的运动约束,求解约束力与约束力矩,得到完整的系统模型。对所建模型进行仿真,仿真结果表明加油机的运动对伸缩管影响较大,证实了考虑管机相互作用的必要性;伸缩管的姿态运动是稳定的,但动态特性较差,并存在纵向与横侧向运动的耦合现象。

Modeling and simulation of unconnected boom aerial refueling system

A model of unconnected boom aerial refueling system is established. The constraint function between the tanker and the boom is considered. Newton-Euler method of multi-body system dynamics is used while modeling. By analyzing the motion constraints between the tanker and the boom, solving the binding force and torque, the complete model is obtained. The simulation on the established model is carried out. The results indicate that the tanker has large influence on the boom＇s attitude response, which confirms the necessity of considering the constraint function. The posture response of boom is stable, but the boom＇s dynamic characteristics are poor. The longitudinal movement and the lateral movement are coupled.