Real Time Loading Test Rig for Flight Control Actuators Under PHM Experimentation

P. Chiavaroli, A. D. Martin, G. Evangelista, G. Jacazio, M. Sorli
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引用次数: 7

Abstract

The article deals with the architecture, performance, and experimental tests of a test bench for servo-actuators used in flight controls. After the state of the art on the subject, the innovative architecture of the built bench is described, in which flight control actuator under test and load actuator are not in line but mounted perpendicularly. The model of the bench actuating systems is then presented, consisting of the servo-controlled hydraulic actuator, load cell, speed transducer, angular position transducer of the coupling and pressure transducers. For each of these components the nonlinear multi-physics mechatronic model is described, according to the adopted solutions. The adopted force control algorithm is discussed, showing the integrative compensation on the action line and proportional-derivative on the feedback, with speed feedforward. The experimental tests carried out on the bench under stalled conditions are also presented, whose results concerning time and frequency responses are compared with those obtained through the linearized and non-linear numerical model. Finally, the non-linear models of the flight control actuator under test, controlled in position, and of the loading servo-actuator of the bench are joined together, and the results of various simulations are described.
飞行控制作动器PHM实验实时加载试验台
本文介绍了一种用于飞行控制的伺服执行器试验台的结构、性能和实验测试。在研究了该课题的最新研究现状后,描述了该试验台的创新结构,其中被测飞控致动器和负载致动器不是直线安装而是垂直安装。建立了由伺服液压执行器、称重传感器、速度传感器、联轴器角位置传感器和压力传感器组成的台架驱动系统模型。根据所采用的解,描述了每个部件的非线性多物理场机电一体化模型。讨论了所采用的力控制算法,在作用线上采用积分补偿,在反馈上采用比例导数,并采用速度前馈。文中还介绍了在停转条件下在台架上进行的试验,并将试验结果与线性化和非线性数值模型得到的时间和频率响应进行了比较。最后,将待测飞控作动器、在位被控作动器和试验台加载伺服作动器的非线性模型结合在一起,并对各种仿真结果进行了描述。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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