应用复合前馈提高加载系统性能的实验研究  

Experimental Research on Improving Loading Performance by Compounding Feedforward Control

作　　者：王鑫[1] 孙力[1] 闫杰[1] 

机构地区：[1]西北工业大学459信箱飞行控制与仿真技术研究所,西安710072

出　　处：《系统仿真学报》2004年第7期1539-1541,共3页Journal of System Simulation

摘　　要：从理论上分析了电液伺服加载系统多余力矩的产生机理和特性,建立了相应的数学模型;提出应用速度、加速度复合前馈控制抑制系统多余力矩、提高加载性能的方法。在电液伺服加载试验台上进行相关实验,证明应用此种方法可以有效地抑制系统的多余力矩、将系统的动态响应频带提高到15Hz左右(相差10°、幅差10%)。In this paper the mechanism of additional torque in the Electro-Hydraulic Servo Loading System (EHSLS) is analyzed, and the mathematic model of EHSLS is also established. The idea using compounding feedforward to constrain the additional torque and improve the system performance is put forward, and some experiments on the equipment are carried out. The results show that it is an effective method to restrain the additional torque and it can expand the bandwidth of the system to 15 Hz (Δφ<10°ΔA<10%).

关 键 词：电液伺服加载系统 多余力矩 复合前馈 实验研究 

分 类 号：TP271.31[自动化与计算机技术—检测技术与自动化装置]