电静液作动器在空中加油中的应用研究

Application of Electro Hydrostatic Actuator in Aerial Refueling

中文关键词:  空中加油  电静液作动器  稳态误差  节流系数

英文关键词:air refueling  electro hydrostatic actuator  steady state error  throttling coefficient

中文摘要:

      随着先进飞行器的不断发展和飞行性能要求的不断提高，空中加油已经成为当前先进飞行器的一项重要且关键的技术，并对受油机的姿态控制精度和作动系统提出了极高的要求。然而，某型机传统机械式钢索控制飞机舵面时，由于飞行操纵力大，飞行负担重，飞机姿态不易控制，精准率极大降低，使得加油过程变得难以进行。基于此，提出了一种电静液作动器控制飞机舵面偏转的方法，可实现舵面精准控制，产生的稳态误差最小，飞机在加受油过程中姿态可控。根据AMESim仿真结果表明，在电静液作动器（EHA）中通过调节节流系数的大小，来确保舵面输出位移的稳态误差最小，此办法是可行的，可以提高受油机的姿态跟踪稳定性和准确性，具有广阔的工程应用价值。

英文摘要:

      With the continuous development of advanced aircrafts and the improvement of flight performance requirements,air refueling has become an important and key technology of advanced aircrafts,and has put forward very high requirements for the attitude control accuracy and actuation system of aircrafts receiving oil.However,when the traditional mechanical wire rope is used to control the rudder surface of a certain aircraft,due to the large flight control force and heavy flight burden,the attitude of the aircraft is not easy to control and the accuracy is greatly reduced,which makes the refueling process difficult.Based on this,a method to control the deflection of the aircrafts rudder surface with electro-static hydraulic actuator is presented,which can realize the precise control of the rudder surface,minimize the steady-state error,and control the attitude of the aircraft in the process of refueling.According to the simulation results of AMESim,it is shown that in the Electro Hydraulic Actuator (EHA),the steady-state error of the output displacement of the rudder surface can be minimized by adjusting the throttle coefficient.This method is feasible and can improve the attitude tracking stability and accuracy of the oil receiver,which has a wide application value in engineering.