A5101520310- Iterative Learning Control Systems
- Piezoelectric Actuators and Control
- Robotic Mechanisms and Dynamics
- Control Systems in Engineering
- Soft Robotics and Applications
- Force Microscopy Techniques and Applications
- Hydraulic and Pneumatic Systems
- Robot Manipulation and Learning
- Advanced Measurement and Metrology Techniques
- Teleoperation and Haptic Systems
- Dynamics and Control of Mechanical Systems
- Magnetic Bearings and Levitation Dynamics
- Adaptive Control of Nonlinear Systems
- Advanced Surface Polishing Techniques
- Robotic Path Planning Algorithms
- Control Systems and Identification
- Magnetic Properties and Applications
- Robotics and Sensor-Based Localization
- Advanced Control Systems Optimization
- Advanced machining processes and optimization
- Fault Detection and Control Systems
- Inertial Sensor and Navigation
- Sensorless Control of Electric Motors
- Modular Robots and Swarm Intelligence
- Advanced MEMS and NEMS Technologies
Ningbo Institute of Industrial Technology
2017-2025
Chinese Academy of Sciences
2017-2025
Nanjing University of Science and Technology
2021-2025
Ministry of Industry and Information Technology
2025
University of Chinese Academy of Sciences
2023-2024
National University of Singapore
2007-2024
North China Electric Power University
2024
University of Nottingham Ningbo China
2019-2024
Peking University
2024
Ningbo University
2023
This review summarizes the major advances since 2012 in highly permeable and CO<sub>2</sub>-selective polymer-based membrane materials.
The tracking performance of a motion system based on permanent-magnet linear motor (PMLM) is greatly affected by nonlinearities present, such as force ripples and frictions. Although various identification compensation schemes haven been reported for the PMLM, to authors' best knowledge, no direct unified modeling method friction available till now. This paper proposes new identify nonlinear parameters in using hysteretic relay feedback. Dual-input describing functions are imported leverage...
A dual-drive H-gantry is commonly used in many industrial processes to meet the requirement of high-precision Cartesian motion. Unlike rigid-linked gantry stage, flexure-linked counterpart allows a small degree rotation crossarm prevent possible damages. However, by this design, chattering control signals and inappropriate stiffness flexure may induce resonant modes gantry. Hence, maintain precision tracking midpoint position orientation gantry, as well minimize vibration on end effector, we...
The scanning accuracy of piezoelectric mechanisms over broadband frequencies is limited due to inherent dynamic hysteresis. This phenomenon has been a key bottleneck the use in fast and precision applications. paper presents systematic model identification composite control strategy without hysteresis measurement for such First, least squares estimation using harmonic signals applied achieve Preisach density function. Next, output estimated, that non-hysteretic dynamics can be identified....
Performance of traditional model-based control relies upon accurate modeling. In motion flexible systems, it is desirable to use the reduced-order model for ease trajectory planning and pole placement, but its performance constrained by modeling inaccuracies due existence friction multiple modes. To improve tracking performance, we have developed a data-based method iterative tuning parameters in inverse within three-degree-of-freedom composite structure. The proposed solely makes...
Cluster unmanned aerial vehicles (UAVs) are widely demanded. To achieve high rate and large capacity communication with cluster UAVs, one of the key but still challenge task is to perform multitarget acquisition, pointing, tracking (APT) under complex airborne environment. solve this problem, paper gives composite axis APT system for laser UAVs. The consists a gimbal mirror piezoelectric fast steering mirrors (FSMs), which can independent synchronous control multiple optical axes. cascade...
This paper presents a novel electromagnetic actuator that adopts an air-core coil mover to deliver decoupled linear and rotary motions. It uses light-weight moving achieve high speed dynamic response, single-phase Lorentz-force driving scheme realize direct noncommutation actuation. To overcome the low thrust force of such scheme, unique magnetic circuits are used enhance torque proposed actuator. Closed-form analytical solutions for modeling field within operating regions these presented...
This paper presents a comprehensive approach for the identification of hysteresis and coupled nonhysteretic dynamics piezoelectric actuators over broad range frequencies. The leverages on special characteristics distinctions hysteretic components to identify them in sequence, efficiently. is identified using square wave input signals. creep an signal with long period. Conversely, electric vibration are small Moreover, drift due eliminated by employing its model inversion. Preisach specially...
An eco-friendly clay-based synergistic flame-retardant coating was established on cotton fabrics via facile layer-by-layer assembly derived from polyethyleneimine (PEI), attapulgite clay (ATP), and phytic acid (PA). The fabricated (FR) demonstrated improved thermal stability. Compared to untreated fabrics, the limiting oxygen index of Cotton-8TL 27.0%. peak heat release rates prepared FR were lower than that pristine showing a maximum reduction 41%. deposition system amount char residue...
The current treatment of otitis media with effusion (OME) when medication fails is to surgically insert a grommet tube in the tympanic membrane. A novel precision surgical device has been developed, which allows insertion be accomplished an office setting. leverages on piezoelectric ultrasonic motor (USM) stage facilitate motion sequences for procedures. core engine USM controller achieve high precision, fast response, and repeatability necessary allow these medical procedures efficiently...
In this work, the design of a novel flexure-linked dual-drive H-gantry is first introduced. Compared to conventional stacked X-Y tables, advantages gantry are on decoupled actuation, better mechanical reliability, larger driving force, and shorter response time. However, after deriving its reduced-order dynamical model, it found that precision end-effector significantly affected by position dependent torque caused inter-parallel-axes forces fixed inertia frame coupling from pair flexures....
The single-phase limited-angle torque (LAT) motor with cylindrical Halbach magnetic array provides a smaller form factor, lighter moving mass, and higher force throughput within <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math>$\pm$</tex-math> </inline-formula> 60 xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math>$^\circ$</tex-math></inline-formula> angle range, compared the three-phase permanent magnet synchronous motor....
Accurate modeling and identification of piezoelectric actuators are increasingly demanded for intelligent micro-nano manufacturing to improve the accuracy positioning scanning. In this article, one coupled fractional-order creep hysteresis model is established using only five parameters. Then, properties investigated under sinusoidal step inputs. The approaches thus proposed by leveraging special characteristics model. Simulation experimental studies carried out validate effectiveness...
A typical man–machine coupling system could provide the wearer a coordinated and assisted movement by lower limb exoskeleton. The process of cooperative relies on accurate perception wearer’s human information planning control joint In this paper, neural network Long-Short Term Memory (LSTM) machine learning model method is proposed to predict actual trajectory body’s limbs. Then wearable angle measurement device was designed for gait prediction, which can be used predictive through methods....
In the process of CBM development, fracturing effect has always been a major controlling factor for productivity. The coal fragmentation degree is special geological feature in development and research, other types reservoirs are not involved this study. This paper addresses problem inaccurate prediction reservoir by studying influence type depth plane curvature on based coalbed characteristics block. It also studies faults seismic inversion results. Combined with dynamic data methane...