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321
Adaptive Fault-Tolerant Control for Flight Systems with Input Saturation and Model Mismatch
Published 2013-01-01“…In order to reduce performance degradation caused by actuator failures, the proposed scheme redistributes the control signal to healthy actuators and updates the weighting matrix based on actuator effectiveness. …”
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322
Application and Analysis of an Ionic Liquid Gel in a Soft Robot
Published 2019-01-01“…Due to their light weight, flexibility, and low energy consumption, ionic electroactive polymers have become a hotspot for bionic soft robotics and are ideal materials for the preparation of soft actuators. Because the traditional ionic electroactive polymers, such as ionic polymer-metal composites (IPMCs), contain water ions, a soft actuator does not work properly upon the evaporation of water ions. …”
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323
Design and Research of End-effector for Naval Orange Harvesting
Published 2020-04-01“…As for the problem that the efficiency of picking of naval orange is low,a kind of picking actuator with surrounding and swallowing is designed,whose structure of implement is mainly consisted of multiplex slider rocker mechanism.Firstly,structure sketch of that installation is completed by referring to the operating principle of actuator designed,and the analysis of kinematics and dynamics is carried out.Then,the mathematical model of objective function is established based on the least consuming time,the optimized size of related structure are got by utilizing the Matlab software.Finally,based on the obtained dimension,the 3D model of end-effector is achieved,kinematics simulation is carried out by applying Adams software,the rationality and feasibility of design of actuator for naval orange harvesting is verified,and the theoretical support for the practical picking experiment is provided.…”
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324
Design and Simulation Analysis of Flexible Joint SEA of Manipulator
Published 2019-01-01“…Series Elastic Actuator (SEA) can effectively improve the flexibility of the joint. …”
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325
Atomic Layer Deposition of TiO2 Nanocoatings on ZnO Nanowires for Improved Photocatalytic Stability
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326
Active Suspension of Truck Seat
Published 1998-01-01“…To improve riding comfort, this study investigated the effects of mounting a computer-controlled actuator in parallel with the traditional spring–damper assembly. …”
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327
Implementation of a Fuzzy TSK Controller for a Flexible Joint Robot
Published 2012-01-01“…The effect of coulomb friction and also gearbox backlashes is decreased by a pulsation signal as an extra voltage that is added to the control voltage of actuator. Actuator dynamics is modeled by consideration of saturation mode of armature current. …”
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328
Mimic defense authentication method for physical access control
Published 2020-06-01“…To address the security problem of the vulnerability of the authentication methods of traditional physical access control systems,a mimic defense authentication method was designed based on the principle of mimic defense technique and its dynamic heterogeneous redundant architecture (DHR),using mobile 2D code as the interface and dynamic password as the core.First,the actuator pool of the authentication server was constructed.Then,a central controller consisting of functional modules such as input distribution agent,selector and voter was used to dynamically schedule heterogeneous redundant actuators from the actuator pool.Finally,a multimode ruling on the heterogeneous redundant actuator output to determine the authentication result was made by the voter.The experimental results show that the proposed authentication method has higher security and reliability compared to the traditional physical access control system authentication method,and at the same time,it can be used in combination with other authentication methods.…”
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329
Dynamic Simulation of a Warship Control Valve Based on a Mechanical-Electric-Fluid Cosimulation Model
Published 2021-01-01“…In engineering practice, the fluid oscillation inside the control valve causes the additional load to the valve actuator. When the additional load is added to the original load of the valve, it is possible that the required driving force (or driving moment) of the valve is greater than the maximum force (or moment) output by the actuator, which may cause the abnormal stop of the actuator. …”
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330
RESEARCH ON STRUCTURE DESIGN AND SIMULATION TEST OF SIX-DIMENSIONAL DISTURBANCE FORCE SIMULATOR
Published 2020-01-01“…Secondly,the structure design of the uniaxial actuator and simulator model were performed and the finite element simulation analysis was applied on the models.Finally,the uniaxial actuator modal test was carried out and the simulator perturbation force experiment was performed. …”
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331
Structure Design and Performance Analysis for Direct-driving Automated Mechanical Transmission
Published 2018-01-01“…The results show that the mass of actuator is 1. 313 kg,which decreased 26% compared with conventional AMT. …”
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332
Cloud-Based Fault Tolerant Control for a DC Motor System
Published 2017-01-01“…Packet dropout phenomenon introduced by the limited-capacity communication channel is considered. Actuator faults are taken into consideration and fault diagnosis and fault tolerant control methods towards actuator faults are proposed to enhance the reliability of the whole cloud-based DC motor system. …”
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333
A Shock Mitigation of Pedestrian-Vehicle Impact Using Active Hood Lift System: Deploying Time Investigation
Published 2016-01-01“…In addition, the workable driving speed of the proposed AHLS is compared with the conventional one by changing the powder volume of the actuator.…”
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334
Optimal Vibration Control for Half-Car Suspension on In-Vehicle Networks in Delta Domain
Published 2013-01-01“…After model transformation, the sampled-data system equation is reduced to one without actuator delays and convenient to calculate the states with nonintegral time delay. …”
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335
Designing Backstepping Control System for Hypersonic Vehicle Based on Feedback Linearization
Published 2015-01-01“…Because of the feedback linearization method, we introduce the constraints of the flight vehicle’s actuator into the design, obtaining the robust adaptive control system constrained by the actuator of the flight vehicle. …”
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336
Analysis of the Forward Kinematics and Workspace of 8-DOF Manipulator
Published 2016-01-01“…A study on the issue that the forward kinematics and workspace of a manipulator with 8--DOF is carried out.Firstly,according to the structural characteristics of the manipulator,the link coordinate system of manipulator are established by using D-H method,and its forward kinematics is obtained.Secondly,the simulation model of manipulator is set up by using the MATLAB Robotics Toolbox,and the correctness of the kinematics forward solution is testified.Finally,according to the position vector of the end actuator,the Monte Carlo method is applied to analyze the manipulator workspace,and the workspace range of the manipulator end actuator is acquired,and it is consistent with the design parameters of the manipulator.…”
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337
Identification of Flap Motion Parameters for Vibration Reduction in Helicopter Rotors with Multiple Active Trailing Edge Flaps
Published 2011-01-01“…Multiple active trailing edge flaps are controlled by using open loop controllers to identify the effects of the actuator signal output properties such as frequency, amplitude and phase on the system response. …”
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338
Adaptive Noise Cancellation System for Low Frequency Transmission of Sound in Open Fan Aircraft
Published 2013-01-01“…This paper describes the use of a structural/acoustic model of a section of a large aircraft to help define the sensor/actuator architecture that was used in a hardware demonstration of adaptive noise cancellation. …”
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339
On Adaptive Fractional Dynamic Sliding Mode Control of Suspension System
Published 2024-12-01“…The active suspension controller is generally driven by an external force like a hydraulic or pneumatic actuator. The external force of the actuator is determined using fractional dynamic sliding mode control (FDSMC) to counteract road disturbances and eliminate the chattering caused by sliding mode control (SMC). …”
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340
Applying Closing Phase-Angle Control Technique in Bounce Reduction of AC Permanent Magnet Contactor
Published 2009-01-01“…A new low-cost electronic control circuit actuator is proposed for minimizing the bouncing times of an AC permanent magnet (PM) contactor after two contacts closing. …”
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