三轴气浮台的自动平衡系统研究  

Research on the Automatic Balance System of Three-Axis Air Bearing Test-Bed

作　　者：陈志明[1] 骆州淮 吴云华[1] CHEN Zhi-ming;LUO Zhou-huai;WU Yun-hua(School of Aerospace,Nanjing University of Aeronautics and Astronautics,Nanjing Jiangsu 210016)

机构地区：[1]南京航空航天大学航天学院,江苏南京210016

出　　处：《计算机仿真》2022年第4期218-222,共5页Computer Simulation

基　　金：国家自然科学基金(61673212)。

摘　　要：在三轴气浮台的研制发展历史中,不平衡力矩一直是限制气浮台使用的重要因素。手动调平衡是补偿不平衡力矩的重要途径,但是仅依靠手动调平衡不但费时而且调平精度不高,因此自动调平衡系统一直是上述领域的研究重点。为了补偿不平衡力矩,设计了一种基于复摆模型的自动调平衡系统。首先建立了三轴气浮台的动力学模型,并在simulink里进行了建模与仿真,得到了不平衡力矩与气浮台角速度变化周期、角度变化周期的关系。然后结合动力学模型和复摆模型,在手动调平的基础上进行自动调平,最终实现了三轴气浮台的自动平衡。实验结果表明设计的自动平衡方法不仅可以缩短气浮台调节平衡的时间,而且可以提高调平精度,在工程上有较大的实际应用价值。In the development history of the three-axis air-bearing test-bed, the unbalanced moment has always been an important factor limiting the use of air-bearing test-bed. Manual leveling is an important way to compensate for the unbalanced torque, but only relying on manual leveling is not only time-consuming but also the leveling accuracy is not high, so the automatic balancing system has always been the research focus in this field. To compensate for the unbalanced moment, an automatic balancing system based on the complex pendulum model is designed in this paper. In this paper, firstly, the dynamic model of the three-axis air bearing test-bed was established, and the modeling and simulation were carried out in Simulink, and the relationship between the unbalanced torque and the change period of angular velocity and angle was obtained. Then, combined with the dynamic model and the compound pendulum model, the automatic leveling was carried out based on manual leveling. Finally, the automatic balance of the three-axis air-bearing test-bed was realized. The results show that the method can not only improve the precision of air balance but also can be used in engineering.

关 键 词：三轴气浮台 不平衡力矩 自动平衡 复摆 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]