重载航空负载模拟器非线性最优前馈补偿控制

发布时间：2018-01-12 02:10

本文关键词：重载航空负载模拟器非线性最优前馈补偿控制　出处：《航空学报》2016年02期 　论文类型：期刊论文

【摘要】：重载航空负载模拟器是用来模拟"C919"、"运-20"等重载飞机舵面工作载荷的地面仿真平台。设计了一种重载航空负载模拟器,采用非对称缸作为执行机构以在小体积下完成大载荷加载。为了消除多余力对重载航空负载模拟器加载精度的影响,分析了非对称缸正反向运动和大载荷变化下伺服阀流量增益的非线性变化对前馈补偿函数的影响,并设计了非线性参数估计控制器。同时分析了加速度等动态参数变化和静态参数的误差对多余力消除的影响,设计了参数最优控制器。仿真和试验结果均表明,相比于传统前馈补偿控制器,所设计的非线性最优前馈补偿控制器下的加载精度和多余力抑制能力提高了50%以上。
[Abstract]:Heavy air load simulator is used to simulate the "C919", "-20" and other heavy aircraft rudder load platform ground simulation. Design of a heavy air load simulator, using non symmetrical cylinder as the actuator to complete large load in a small volume. In order to eliminate the influence of heavy air force loading load simulator the accuracy of the analysis of the impact of changes in the nonlinear flow gain of servo valve asymmetric cylinder reverse movement and large loads on the feedforward compensation function, and the design of controller for nonlinear parameter estimation error is also analyzed. Influence of change speed of dynamic parameters and static parameters of the force are eliminated, the parameters of the optimal controller design. Simulation and experimental results show that compared with the traditional feedforward compensation controller, nonlinear optimal feedforward compensation controller is designed under the loading precision and surplus force The inhibition ability was increased by more than 50%.

【作者单位】：浙江大学流体动力与机电系统国家重点实验室;航空机电系统综合航空科技重点实验室;
【基金】：国家自然科学基金(51275450,51521064) 国家“973”计划(2014CB046403)~~
【分类号】：V216.8
【正文快照】： 网络出版地址:www.cnki.net/kcms/detail/11.1929.V.20151015.0901.002.html引用格式:欧阳小平,李锋,朱莹,等.重载航空负载模拟器非线性最优前馈补偿控制[J].航空学报,2016,37(2):669-679.OUYANGX P,LI F,ZHU Y,et al.Nonlinear optimal feedforward compensation controller

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