Results 11 to 20 of about 36,818 (303)

Actuator Fault Detection and Fault-Tolerant Control for Hexacopter [PDF]

open access: yesSensors, 2019
In this paper, fault detection and fault-tolerant control strategies are proposed to handle the issues of both actuator faults and disturbances in a hexacopter.
Ngoc Phi Nguyen   +2 more
doaj   +5 more sources

Extreme learning machine based actuator fault detection of a quadrotor helicopter

open access: yesAdvances in Mechanical Engineering, 2017
Actuator fault might occur during quadrotor helicopter’s flight. It is a demand to detect actuator fault in real-time. An actuator fault detection method based on extreme learning machine is proposed.
Chen Li, Yu Zhang, Ping Li
doaj   +2 more sources

Observer-based fault tolerant control of shape memory alloy actuator [PDF]

open access: yesScientific Reports
This study aims to design and experimentally implement a nonlinear fault tolerant control scheme for shape memory alloy actuator employed for a robotic manipulator. In the proposed scheme, a super twisting sliding mode controller as a baseline controller
Mehdi Mirzaei   +4 more
doaj   +2 more sources

Fault Detection, Isolation and Reconfiguration of Four-Bar Mechanism-Based Knee Exoskeleton [PDF]

open access: yesSensors
Knee exoskeletons are sophisticated wearable devices engineered to aid or augment human movement, especially in rehabilitation and mobility assistance contexts.
Prakhar Jain   +4 more
doaj   +2 more sources

ADP-Based Fault-Tolerant Control with Stability Guarantee for Nonlinear Systems [PDF]

open access: yesEntropy
This paper develops the stability-guaranteed adaptive dynamic programming (ADP)-based fault tolerant control (FTC) for nonlinear systems with an actuator fault. Firstly, a fault observer is designed to identify the unknown actuator fault.
Luojia Liu   +4 more
doaj   +2 more sources

Fault-Tolerant Control for Systems With Unmatched Actuator Faults and Disturbances [PDF]

open access: yesIEEE Transactions on Automatic Control, 2021
A fault-tolerant control (FTC) scheme for a class of nonlinear systems with unmatched actuator redundancy and unmatched disturbances is proposed in this note. A methodology to construct unified smooth sliding mode control laws and update laws is proposed such that the equivalent injections of the first-order time derivatives of the unmatched actuator ...
Kangkang Zhang   +4 more
openaire   +1 more source

Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple Faults

open access: yesApplied Sciences, 2022
This study investigated the adaptive fault-tolerant control (FTC) for a flexible variable structure spacecraft in the presence of external disturbance, multiple actuator faults, and saturation. The attitude system model of a variable structure spacecraft
Kai-Yu Hu, Wenjing Sun, Chunxia Yang
doaj   +1 more source

Model and Data-Driven Combination: A Fault Diagnosis and Localization Method for Unknown Fault Size of Quadrotor UAV Actuator Based on Extended State Observer and Deep Forest

open access: yesSensors, 2022
The rotor is an essential actuator of quadrotor UAV, and is prone to failure due to high speed rotation and environmental disturbances. It is difficult to diagnose rotor faults and identify the fault localization simultaneously. In this paper, we propose
Jia Song   +3 more
doaj   +1 more source

CNN-Based Intelligent Fault-Tolerant Control Design for Turbofan Engines With Actuator Faults

open access: yesIEEE Access, 2021
In this paper, the problem of fault-tolerant control is investigated for turbofan engines with actuator faults. The controller involvement has repressed the effects of actuator faults on the controlled outputs of turbofan engines, making fault-tolerant ...
Dingding Cheng, Lijun Liu, Zhen Yu
doaj   +1 more source

Research on composite fault diagnosis technology of underwater vehicle actuator with positioning error constraint

open access: yesHeliyon, 2023
When diagnosing the composite fault of the actuator, the characteristics of the motion force of the underwater vehicle are not analyzed, and there are diagnostic errors, resulting in the low accuracy of the diagnosis technology.
Dewen Zhu, Zhiyu Zhu
doaj   +1 more source

Home - About - Disclaimer - Privacy