Integrated fault estimation and fault-tolerant control for a flexible regional aircraft

来源 :中国航空学报(英文版) | 被引量 : 0次 | 上传用户:zmf0140
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The article focuses on the design and application of an active reconfigurable controller that mitigates the effects of gust load and actuator faults on a flexible aircraft.A novel integrated adaptive output feedback scheme is investigated to address the actuator faults.The real-time fault values provided by the fault estimation module are considered in the reconfigurable control law to improve the fault-tolerant capability.The estimate values of faults and control gains are calculated by analyzing the stability of the overall system.The proposed controller is simulated using a flexible aircraft model with a discrete \'l-cosine\'gust,and the results show that it can effectively mitigate the wing root moments and recover the flight maneuver stability after the aircraft suffered from gusts.
其他文献
This paper investigates the problem of a 2-D plate containing internal cracks at arbitrary angles to the heating surface under thermal shock.The finite difference method is applied to solve the temperature distribution and a difference scheme of the obliq
为确保吴家园水库的运行安全,充分发挥吴家园水库的综合效益,文章阐述了如何科学编制大中型水库兴利控制运用计划,结合吴家园水库水雨情实际,编制水库汛期调度运用计划,充分发挥水库的兴利功能,最大限度地利用水资源.
文章对北方地区输水隧洞冬季施工喷射混凝土速凝剂进行性能指标试验.试验结果表明:无碱液体速凝剂对于北方地区输水隧洞冬季施工喷射混凝的速凝效果最佳,工程施工时速凝剂的初凝时间尽量控制在3-5 min较为适宜.研究成果对于北方寒区输水隧洞施工速凝剂的选择及主要性能指标选择具有重要参考价值.
The radial ultrasonic rolling electrochemical micromachining (RUR-EMM) combined rolling electrochemical micromachining (R-EMM) and ultrasonic vibration was studied in this paper.The fundamental understanding of the machining process especially the interac
Precision and low damage grinding of aviation optical elements can effectively improve the overall processing efficiency.The mechanism of high-speed cross scuffing of multiple abrasive particles has become an important factor affecting the forming quality
The tracking control problem for Flexible Joint Manipulator Control System (FJMCS)with unmeasurable states is addressed in this paper.Firstly,a High-Gain Observer (HGO) is con-structed to estimate the unmeasurable states and the uncertainties.Then,a Dynam
清原镇段河道两岸均为自然萌生柳树丛林,抵御洪水冲刷能力较强,但防洪标准不高,当年洪水很大,两岸漫流致使全镇受灾,该镇的大面积居民楼倒塌,城市东部粮库旧址的化工厂部分也被洪水淹没.洪水淹没的农田减产,经济损失惨重,鉴于此文章对清原县城的干支流洪水进行了分析,同时对治理后设计洪水进行了计算,经治理后确保当地农田灌溉及人民生命得到保障.
文章采用水热化估算方法对北方地区冬季水工混凝土施工的热能损耗率进行试验.试验分析表明:冬季水工混凝土热能损耗的主因在于其内壁厚度,热能损耗率可通过增加其内壁厚度来有效降低,从而增强冬季水工混凝土施工结构的稳定程度.研究成果对于北方地区冬季水利工程施工设计具有重要参考价值.
Fabrication of the surface micro-texture on the C-plane sapphire is undertaken by a 355 nm Ultraviolet (UV) pulsed laser.The surface micro-textures of sapphire with different laser scanning line spacing ranging from 10 μm to 100 μm are obtained,where the
目前,辽河中上游和回水段仍存在防洪标准低、工程不完善、河道阻水障碍多等问题,为适应工农业生产的发展,保障人民生命财产安全,恢复河流的生态环境,有必要对该河段的中、上游河流和回水部分进行治理,故此对凡河流域上游不同区间设计洪水计算,仅供相关设计部门参考.