襟缝翼耐久性试验电液伺服协同加载技术研究

Study on Electro-Hydraulic Servo Collaborative Loading Technology for the Durability Test of Flaps and Slats

襟缝翼耐久性试验中,襟翼结构为大后退量、非定轴转动运动方式,缝翼为定轴转动运动方式,试验中翼面不断运动,施加载荷大小及方向需跟随协同变化。根据不同运动及受载模式的翼面结构,分别设计襟翼、缝翼协同加载方案,通过协调加载系统控制施加载荷,伺服电机或电动缸位置控制系统控制加载方向,实现不同载荷工况加载点加载方向与翼面相对位置保持不变。依据上述方案,通过试验验证,试验过程中加载点位置控制精度、加载点载荷施加结果均满足试验误差要求,验证了上述方案的可行性,确保了试验载荷施加的精度和准确性,为不同运动模式的翼面结构随动加载提供借鉴。

In the durability test of the flaps and slats, the flap is in the mode of large receding and non-fixed axis rotation, while the slats is in the mode of fixed rotation.During the test, the wing surface keeps moving, and the load size and direction should be changed with wing surface.According to the wing structure of different motion and loading modes, the joint loading schemes of flap and slat were designed respectively.By coordinating the loading system to control the applied load, the servo motor or the electric cylinder position control system was used to control the loading direction, so that the loading direction of the loading point and the relative position of the wing surface remained unchanged under different loading conditions.According to the above schemes, the accuracy of the position control of the loading point and the results of load application both meet the requirements of the test error in the test process, which verifies the feasibility of the above schemes, ensures the precision and accuracy of the test load.It provides references for the following loading of the wing structure in different motion modes.