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Yong Qi, Haizhao Jing and Xiwei Wu
In this paper, a variable structure PID controller with a good convergence rate and robustness for satellite attitude is proposed. In order to improve the system convergence rate, the variable structure for the proportional and differential term was desi...
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Hang Wu, Ling Zheng, Yinong Li, Zhida Zhang and Yinghong Yu
The aim of this study is to provide an accurate model reference for the analysis of vibration characteristics of hub-driven electric vehicles with permanent magnet synchronous motors (PMSM) and the optimization, control and improvement of its vibration p...
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Gianpietro Di Rito, Romain Kovel, Marco Nardeschi, Nicola Borgarelli and Benedetto Luciano
The work deals with the model-based characterization of the failure transients of a fail-safe rotary EMA developed by Umbragroup (Italy) for the flap movables of the RACER helicopter-plane by Airbus Helicopters (France). Since the reference application r...
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Andrea Nesci, Andrea De Martin, Giovanni Jacazio and Massimo Sorli
Recent trend in the aeronautic industry is to introduce a novel prognostic solution for critical systems in the attempt to increase vehicle availability, reduce costs, and optimize the maintenance policy. Despite this, there is a general lack of literatu...
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Sergio Saponara
This paper presents an actuator control unit (ACU) with a 450-J embedded energy storage backup to face safety critical mechatronic applications. The idea is to ensure full operation of electric actuators, even in the case of battery failure, by using sup...
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Sungjoon Cho, Hwanjeong Cho and Dooyoul Lee
A simple method of investigating the effect of joint clearances on landing gear retraction failure is presented and applied to the main landing gear with a single sidestay and a hydraulic actuator. A geometric model is presented with assumptions of each ...
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Hongqiang Sun and Shuguang Zhang
Security enhancement and cost reduction have become crucial goals for second-generation reusable launch vehicles (RLV). The thruster is an important actuator for an RLV, and its control normally requires a valve capable of high-frequency operation, which...
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Beom-Joon Park and Hyun-Joon Chung
The growing trend of onboard computational autonomy has increased the need for self-reliant rovers (SRRs) with high efficiency for unmanned rover activities. Mobility is directly associated with a successful execution mission, thus fault response for act...
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Matteo D. L. Dalla Vedova, Alfio Germanà, Pier Carlo Berri and Paolo Maggiore
Traditional hydraulic servomechanisms for aircraft control surfaces are being gradually replaced by newer technologies, such as Electro-Mechanical Actuators (EMAs). Since field data about reliability of EMAs are not available due to their recent adoption...
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Bangchu Zhang, Yiyong Liang, Shuitao Rao, Yu Kuang and Weiyu Zhu
In hypersonic flight control, characterized by challenges posed by input saturation, model parameter uncertainties, and external disturbances, this paper introduces a pioneering anti-input saturation control method based on RBFNN adaptivity. We have deve...
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Honghai Wang, Fujun Wen, Guiqian Liu, Peng Jia, Feihong Yun, Liquan Wang, Yongchao Wang and Chao Li
To bridge the gap that exists in the key equipment of the new subsea production control system, the all-electric subsea gate valve actuator, and exploit subsea oil and gas resources with high reliability and safety while saving energy, this paper propose...
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Zhenxin Zhang, Meng Zhang, Guoxi Li, Shilong Qin and Chunxiao Xu
The actuator, which generally consists of motors, electrical regulations, and propellers, is the key component of the quadrotor Unmanned Aerial Vehicle. During the operation of the UAV, actuators are prone to degrade performance and even cause serious fa...
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Pu Yang, Ziwei Shen, Yu Ding and Kejia Feng
In this paper, a new adaptive observer is proposed to estimate the actuator fault and disturbance of a quadrotor UAV system with actuator failure and disturbance. Based on this, a nonsingular fast terminal sliding mode controller is designed. Firstly, ac...
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Wei Wang, Zikuo Zhang and Zhichun Yang
The effect of stress depolarization will cause actuation function degradation of a piezoelectric actuator, which can eventually trigger function failure of the piezoelectric smart structure system. In the present study, we experimentally demonstrate the ...
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Min-Chan Hwang, Chiou-Jye Huang and Feifei Liu
The primary issue in developing hexapod robots is generating legged motion without tumbling. However, when the hexapod is designed with collocated actuators, where each joint is directly mounted with an actuator, the number of actuators is usually high. ...
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Rui Chang, Qingxuan Jia, Ming Chu and Xiaodong Zhang
Compliant capture of the space non-cooperative targets is a key technology in on-orbit services. A great challenge is that the multi-dimensional contact force generated by the tumbling space target can destabilize the spacecraft-manipulator system (SMS),...
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Qiyu Chen, Yancai Hu, Qiang Zhang, Junpeng Jiang, Mingshan Chi and Yaping Zhu
Due to the unknown disturbance caused by the harsh environment in deep water, the stability of Underwater Tracked Remotely Opreated Vehicle (UTROV) trajectory tracking control is affected; especially the resistance forces of random vibrations caused by n...
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Junxia Yang, Youpeng Zhang and Yuxiang Jin
Aiming at the problem of the large tracking error of the desired curve for the automatic train operation (ATO) control strategy, an ATO control algorithm based on RBF neural network adaptive terminal sliding mode fault-tolerant control (ATSM-FTC-RBFNN) i...
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Anis Baklouti, Nga Nguyen, Faïda Mhenni, Jean-Yves Choley and Abdelfattah Mlika
The goal of the paper is the integration of safety analysis in a model-based systems engineering approach to ensure consistency between system design and safety artifacts. This integration permits the continuous improvement of the structure and behavior ...
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Yaping Zhu, Qiang Zhang, Yang Liu, Yancai Hu and Sihang Zhang
A new control algorithm was designed to solve the problems of actuator physical failure, remote network attack, and sudden change in trajectory curvature when a port?s artificial intelligence-based transportation robots track transportation in a freight ...
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