Actuators  

Víctor Ruiz-Díez, José Luis García-Caraballo, Jorge Hernando-García and José Luis Sánchez-Rojas

The miniaturization of robots with locomotion abilities is a challenge of significant technological impact in many applications where large-scale robots have physical or cost restrictions. Access to hostile environments, improving microfabrication process... see more

Qimeng Xu, Hongwen Li, Quanyu Wang and Chunlei Wang

Due to the harsh working environment of wheeled agricultural vehicles in the field, it is difficult to ensure that all wheels make contact with the ground at the same time, which is easy to unequally distribute the yaw moments of each independent wheel. T... see more

Jin Xu, Guang Chen, Jiang Xu and Qing Zhang

The electromagnetic guided wave transducer has been widely used in pipeline detection in recent years due to its non-contact energy conversion characteristics. Based on the Weidemann effect, an electromagnetic guided wave transducer that can realize the l... see more

Van-Cuong Nguyen, Phu-Nguyen Le and Hee-Jun Kang

In this study, a fault-tolerant control (FTC) tactic using a sliding mode controller–observer method for uncertain and faulty robotic manipulators is proposed. First, a finite-time disturbance observer (DO) is proposed based on the sliding mode observer t... see more

Zhenle Dong, Yinghao Yang, Geqiang Li and Zheng Zhang

For the demands of a high precision motion control of an uncertain electro-mechanical launching platform, a novel integrated error constraint asymptotic control in the presence of parametric uncertainties and uncertain disturbance is proposed, of which th... see more

Youding Sun, Zhongpan Zhu, Aimin Du and Xinwen Chen

Multiparameter optimization of complex electromechanical systems in a physical space is a challenging task. CPS (Cyberphysical system) technology can speed up the solution of the problem based on data interaction and collaborative optimization of physical... see more

Shuyue Zhang and Jihao Wu

The thrust position of the magnetic levitation rotor can be changed, bringing convenience to the practical application of cold compressors. This paper derives the mathematical model of asymmetric thrust magnetic bearings for a cold compressor and analyzes... see more

Qiang Bai, Shaobo Li, Jing Yang, Mingming Shen, Sanlong Jiang and Xingxing Zhang

Researchers all over the world are aiming to make robots with accurate and stable human-like grasp capabilities, which will expand the application field of robots, and development of a reasonable grasping strategy is the premise of this function. In this ... see more

Aicheng Zou, Zhong Liu and Xingguo Han

Existing piezoelectric vibration energy harvesting circuits require auxiliary power for the switch control module and are difficult to adapt to broadband piezoelectric vibration energy harvesters. This paper proposes a self-powered and low-power enhanced ... see more

Andrea Palumbo and Luigi de Luca

The paper presents a joint experimental and numerical characterization of double-orifice synthetic jet actuators for flow control. Hot-wire measurements of the flow field generated by the device into a quiescent air environment were collected. The actuati... see more

Manan’Iarivo Louis Rasolonjanahary, Chris Bingham, Nigel Schofield and Masoud Bazargan

In the case of the widespread adoption of electric vehicles (EV), it is well known that their use and charging could affect the network distribution system, with possible repercussions including line overload and transformer saturation. In consequence, du... see more

Sung Hyun You, Seok-Kyoon Kim and Hyun Duck Choi

This paper presents a novel trajectory-tracking technique for servo systems treating only the position measurement as the output subject to practical concerns: system parameter and load uncertainties. There are two main contributions: (a) the use of obser... see more

Pu Yang, Zixin Wang, Zhiqing Zhang and Xukai Hu

In this paper, an adaptive sliding mode fault-tolerant control scheme based on prescribed performance control and neural networks is developed for an Unmanned Aerial Vehicle (UAV) quadrotor carrying a load to deal with actuator faults. First, a nonsingula... see more

Shuzhong Zhang, Tianyi Chen, Tatiana Minav, Xuepeng Cao, Angeng Wu, Yi Liu and Xuefeng Zhang

Automated operations are widely used in harsh environments, in which position information is essential. Although sensors can be equipped to obtain high-accuracy position information, they are quite expensive and unsuitable for harsh environment applicatio... see more

Viacheslav Zakharov and Tatiana Minav

Transitioning from a valve- to pump-controlled system has been observed in working hydraulics to reduce energy consumption and accelerate the response to decarbonization requirements in Non-road Mobile Machinery (NRMM). The utilization of an electric moto... see more

Chien-Sheng Liu, Yu-Cheng Wu and Yu-Jie Lan

In order to improve the quality of the laser and shorten the optical path of the fast steering mirror (FSM) laser compensation system, this paper proposes a four-degrees-of-freedom (4-DOF) voice coil motor (VCM) with the function of reducing laser geometr... see more

Jeonghwan Gil, Sesun You, Youngwoo Lee and Wonhee Kim

A cascade proportional integral control method with back-electro motive force compensation has been widely used for permanent magnet synchronous motors. In the permanent magnet synchronous motor control, it is important to accurately know the back-electro... see more

Bashir Salah

With the advent of modern communication and control strategies, existing industrial enterprises are now being transformed as per Industrial Revolution (IR) 4.0 standards to maximize production rates and monetary gains. To cope with the pace of the modern ... see more

Saddam Gharab, Selma Benftima and Vicente Feliu Batlle

In this paper, a method to control one degree of freedom lightweight flexible manipulators is investigated. These robots have a single low-frequency and high amplitude vibration mode. They hold actuators with high friction, and sensors which are often str... see more

Eun Jeong Song, Jung Soo Lee, Hyungpil Moon, Hyouk Ryeol Choi and Ja Choon Koo

For soft grippers to be applied in atypical industrial environments, they must conform to an object’s exterior shape and momentarily change their stiffness. However, many of the existing grippers have limitations with respect to these functions: they gras... see more

Qianqian Wu, Zhihui Liu, Fengyan An and Bilong Liu

The maglev inertial actuators with high power and mass maybe effective for lateral vibration control of a propulsion shafting. But the mass power ratio of the actuators currently in use is too small to meet the requirements. In the paper, a maglev inertia... see more

Jiayi Wang, Yonghu Luo and Xiaojun Tan

In this paper, an AGV path planning method fusing multiple heuristics rapidly exploring random tree (MH-RRT) with an improved two-step Timed Elastic Band (TEB) is proposed. The modified RRT integrating multiple heuristics can search a safer, optimal and f... see more

Rui Zhang, Jun Peng, Bin Chen, Kai Gao, Yingze Yang and Zhiwu Huang

Active braking control systems are vital for the safety of high-speed trains by leading the train operation at its maximum adhesion state. The train adhesion is a nonlinear function of the slip ratio and varies with the uncertain wheel-rail contact condit... see more

Jafar Ghazanfarian, Mohammad Mostafa Mohammadi and Kenji Uchino

In the last decade, an enormous amount of attention has been paid to piezoelectric harvesters due to their flexibility in design and the increasing need for small-scale energy generation. As a result, various energy review papers have been presented by ma... see more

António J. Arsénio, Francisco Ferreira da Silva, João F. P. Fernandes and Paulo J. Costa Branco

This document presents a study on the optimization of the 3D geometry of a horizontal axis radial levitation bearing with zero-field cooled (ZFC) high-temperature superconductor (HTS) bulks in the stator, and radially magnetized permanent magnet (PM) ring... see more

Ajinkya Deshmukh, Laurent Petit, Muneeb-ullah Khan, Frédéric Lamarque and Christine Prelle

In this paper, a novel micro-positioning device based on a 3D digital actuator is presented. The proposed system allows realizing planar motions of micro-objects, which could be implemented in several applications where micro-positioning tasks are needed ... see more

Liuhuo Wang, Chengfeng Liu, Xiaowei Zhu, Zhixian Xu, Wenwei Zhu and Long Zhao

In the power system, the transmission tower is located in a variety of terrains. Sometimes there will be displacement, inclination, settlement and other phenomena, which eventually lead to the collapse of the tower. In this paper, a method for monitoring ... see more

Lejun Wang, Siyu Chen, Pan Zhang, Jinhua She and Xuzhi Lai

This paper presents a simple control method on the basis of the trajectory planning for vertical Acrobot to accomplish the control goal of moving the system from the downward initial position (DIP) and steadying the system at the upward target position (U... see more

Qinan Chen, Hui Chen, Deming Zhu and Linjie Li

Airline electromechanical actuators (EMAs), on the task of controlling flight surfaces, hold a great promise with the development of more- and all-electric aircraft. Notwithstanding, the deficiencies in both robustness and adaptability of control algorith... see more