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Most Cited

  • Review
  • Open Access
497 Citations
34,720 Views
31 Pages

Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications

  • Haribabu Palneedi,
  • Venkateswarlu Annapureddy,
  • Shashank Priya and
  • Jungho Ryu

9 March 2016

Multiferroic magnetoelectric (ME) composites are attractive materials for various electrically and magnetically cross-coupled devices. Many studies have been conducted on fundamental understanding, fabrication processes, and applications of ME compos...

(This article belongs to the Special Issue Piezoelectric Actuators)
  • Review
  • Open Access
383 Citations
50,867 Views
26 Pages

Soft Robotics: A Review of Recent Developments of Pneumatic Soft Actuators

  • James Walker,
  • Thomas Zidek,
  • Cory Harbel,
  • Sanghyun Yoon and ,
  • F. Sterling Strickland,
  • Srinivas Kumar and
  • Minchul Shin
  • + 2 authors+ 0 author

10 January 2020

This paper focuses on the recent development of soft pneumatic actuators for soft robotics over the past few years, concentrating on the following four categories: control systems, material and construction, modeling, and sensors. This review work se...

(This article belongs to the Special Issue Pneumatic Soft Actuators)
  • Review
  • Open Access
306 Citations
24,808 Views
20 Pages

Recent Progress on BaTiO3-Based Piezoelectric Ceramics for Actuator Applications

  • Jinghui Gao,
  • Dezhen Xue,
  • Wenfeng Liu,
  • Chao Zhou and
  • Xiaobing Ren

31 July 2017

Due to issues with Pb toxicity, there is an urgent need for high performance Pb-free alternatives to Pb-based piezoelectric ceramics. Although pure BaTiO3 material exhibits fairly low piezoelectric coefficients, further designing of such a material s...

  • Review
  • Open Access
253 Citations
32,333 Views
17 Pages

Recent Progress on PZT Based Piezoelectric Energy Harvesting Technologies

  • Min-Gyu Kang,
  • Woo-Suk Jung,
  • Chong-Yun Kang and
  • Seok-Jin Yoon

22 February 2016

Energy harvesting is the most effective way to respond to the energy shortage and to produce sustainable power sources from the surrounding environment. The energy harvesting technology enables scavenging electrical energy from wasted energy sources,...

(This article belongs to the Special Issue Piezoelectric Actuators)
  • Feature Paper
  • Review
  • Open Access
221 Citations
26,327 Views
21 Pages

An Overview of Novel Actuators for Soft Robotics

  • Pinar Boyraz,
  • Gundula Runge and
  • Annika Raatz

16 August 2018

In this systematic survey, an overview of non-conventional actuators particularly used in soft-robotics is presented. The review is performed by using well-defined performance criteria with a direction to identify the exemplary and potential applicat...

  • Feature Paper
  • Review
  • Open Access
  • Best Paper Award
210 Citations
24,795 Views
33 Pages

15 February 2020

Shape memory polymers (SMPs) are smart materials capable of changing their shapes in a predefined manner under a proper applied stimulus and have gained considerable interest in several application fields. Particularly, two-way and multiple-way SMPs...

  • Review
  • Open Access
195 Citations
23,409 Views
31 Pages

Flexible Medical Devices: Review of Controllable Stiffness Solutions

  • Loïc Blanc,
  • Alain Delchambre and
  • Pierre Lambert

11 July 2017

In the medical field and in soft robotics, flexible devices are required for safe human interaction, while rigid structures are required to withstand the force application and accuracy in motion. This paper aims at presenting controllable stiffness m...

(This article belongs to the Special Issue Variable Stiffness and Variable Impedance Actuators)
  • Review
  • Open Access
185 Citations
22,122 Views
33 Pages

A Review of Jamming Actuation in Soft Robotics

  • Seth G. Fitzgerald,
  • Gary W. Delaney and
  • David Howard

15 October 2020

Jamming is a popular and versatile soft robotic mechanism, enabling new systems to be developed that can achieve high stiffness variation with minimal volume variation. Numerous applications have been reported, including deep-sea sampling, industrial...

(This article belongs to the Special Issue Soft Actuation: State of the Art and Outlook)
  • Review
  • Open Access
152 Citations
27,015 Views
14 Pages

Pneumatic Soft Robots: Challenges and Benefits

  • Hang Su,
  • Xu Hou,
  • Xin Zhang,
  • Wen Qi and ,
  • Shuting Cai,
  • Xiaoming Xiong and
  • Jing Guo
  • + 2 authors+ 0 author

16 March 2022

In the field of robotics, soft robots have been showing great potential in the areas of medical care, education, service, rescue, exploration, detection, and wearable devices due to their inherently high flexibility, good compliance, excellent adapta...

(This article belongs to the Special Issue Robot Control in Human-Machine Systems)
  • Review
  • Open Access
151 Citations
22,192 Views
35 Pages

6 February 2017

Piezoelectric inertia motors—also known as stick-slip motors or (smooth) impact drives—use the inertia of a body to drive it in small steps by means of an uninterrupted friction contact. In addition to the typical advantages of piezoelectric motors,...

  • Feature Paper
  • Review
  • Open Access
  • Best Paper Award
147 Citations
37,741 Views
28 Pages

Review of Electrothermal Actuators and Applications

  • Alissa Potekhina and
  • Changhai Wang

21 September 2019

This paper presents a review of electrothermal micro-actuators and applications. Electrothermal micro-actuators have been a significant research interest over the last two decades, and many different designs and applications have been investigated. T...

  • Review
  • Open Access
145 Citations
32,605 Views
28 Pages

9 October 2022

Pneumatic artificial muscles (PAMs) are soft and flexible linear pneumatic actuators which produce human muscle like actuation. Due to these properties, the muscle actuators have an adaptable compliance for various robotic platforms as well as medica...

(This article belongs to the Special Issue Pneumatic Actuators for Robotics and Automation)
  • Review
  • Open Access
144 Citations
24,084 Views
18 Pages

Piezoelectric Motors, an Overview

  • Karl Spanner and
  • Burhanettin Koc

26 February 2016

Piezoelectric motors are used in many industrial and commercial applications. Various piezoelectric motors are available in the market. All of the piezoelectric motors use the inverse piezoelectric effect, where microscopically small oscillatory moti...

(This article belongs to the Special Issue Piezoelectric Actuators)
  • Review
  • Open Access
140 Citations
17,643 Views
26 Pages

A Review of Piezoelectric Material-Based Structural Control and Health Monitoring Techniques for Engineering Structures: Challenges and Opportunities

  • Abdul Aabid,
  • Bisma Parveez,
  • Md Abdul Raheman,
  • Yasser E. Ibrahim and ,
  • Asraar Anjum,
  • Meftah Hrairi,
  • Nagma Parveen and
  • Jalal Mohammed Zayan
  • + 3 authors+ 0 author

10 May 2021

With the breadth of applications and analysis performed over the last few decades, it would not be an exaggeration to call piezoelectric materials “the top of the crop” of smart materials. Piezoelectric materials have emerged as the most researched m...

(This article belongs to the Special Issue Vibration Control and Structure Health Monitoring)
  • Review
  • Open Access
138 Citations
16,485 Views
21 Pages

5 August 2021

In this paper, the related studies of chassis configurations and control systems for four-wheel independent drive/steering electric vehicles (4WID-4WIS EV) are reviewed and discussed. Firstly, some prototypes and integrated X-by-wire modules of 4WID-...

(This article belongs to the Special Issue Actuators for Intelligent Electric Vehicles)
  • Review
  • Open Access
124 Citations
14,799 Views
21 Pages

18 October 2023

Point machines are the actuators for railway switching and crossing systems that guide trains from one track to another. Hence, the safe and reliable behavior of point machines are pivotal for rail transportation. Recently, scholars and researchers h...

(This article belongs to the Special Issue Electro-Mechanical Actuator, Diagnostic and Fault-Tolerant Control Systems)
  • Review
  • Open Access
114 Citations
23,810 Views
30 Pages

Review of Modeling and Control of Magnetostrictive Actuators

  • Valerio Apicella,
  • Carmine Stefano Clemente,
  • Daniele Davino,
  • Damiano Leone and
  • Ciro Visone

29 May 2019

Magnetostrictive actuators play an important role in the perception of usefulness of smart materials and devices. Their applications are potentially wider than that of piezoelectric actuators because of the higher energy density and intrinsic robustn...

  • Review
  • Open Access
  • Best Paper Award
102 Citations
17,197 Views
26 Pages

Soft Exoskeletons: Development, Requirements, and Challenges of the Last Decade

  • Alan Francisco Pérez Vidal,
  • Jesse Yoe Rumbo Morales,
  • Gerardo Ortiz Torres,
  • Felipe de Jesús Sorcia Vázquez and ,
  • Alan Cruz Rojas,
  • Jorge Aurelio Brizuela Mendoza and
  • Julio César Rodríguez Cerda
  • + 2 authors+ 0 author

19 July 2021

In this article, various investigations on soft exoskeletons are presented and their functional and structural characteristics are analyzed. The present work is oriented to the studies of the last decade and covers the upper and lower joints, specifi...

(This article belongs to the Section Actuators for Robotics)
  • Review
  • Open Access
102 Citations
39,650 Views
29 Pages

8 December 2023

Mechanical vibrational energy, which is provided by continuous or discontinuous motion, is an infinite source of energy that may be found anywhere. This source may be utilized to generate electricity to replenish batteries or directly power electrica...

(This article belongs to the Special Issue Smart Systems for Vibration Damping, Control and Energy Harvesting Based on Piezoelectric Actuators: Latest Findings and Applications)
  • Article
  • Open Access
101 Citations
20,060 Views
23 Pages

Soft Pneumatic Actuators for Rehabilitation

  • Guido Belforte,
  • Gabriella Eula,
  • Alexandre Ivanov and
  • Silvia Sirolli

26 May 2014

Pneumatic artificial muscles are pneumatic devices with practical and various applications as common actuators. They, as human muscles, work in agonistic-antagonistic way, giving a traction force only when supplied by compressed air. The state of the...

(This article belongs to the Special Issue Soft Actuators)
  • Review
  • Open Access
98 Citations
10,691 Views
23 Pages

Review of Magnetoelectric Sensors

  • Junqi Gao,
  • Zekun Jiang,
  • Shuangjie Zhang,
  • Zhineng Mao and ,
  • Ying Shen and
  • Zhaoqiang Chu
  • + 1 author+ 0 author

24 May 2021

Multiferroic magnetoelectric (ME) materials with the capability of coupling magnetization and electric polarization have been providing diverse routes towards functional devices and thus attracting ever-increasing attention. The typical device applic...

(This article belongs to the Section Actuator Materials)
  • Review
  • Open Access
94 Citations
31,980 Views
22 Pages

26 April 2016

Piezoelectric transformers (PTs) are solid-state devices that transform electrical energy into electrical energy by means of a mechanical vibration. These devices are manufactured using piezoelectric materials that are driven at resonance. With appro...

(This article belongs to the Special Issue Piezoelectric Actuators)
  • Article
  • Open Access
94 Citations
16,801 Views
19 Pages

Bioinspired Soft Actuation System Using Shape Memory Alloys

  • Matteo Cianchetti,
  • Alessia Licofonte,
  • Maurizio Follador,
  • Francesco Rogai and
  • Cecilia Laschi

9 July 2014

Soft robotics requires technologies that are capable of generating forces even though the bodies are composed of very light, flexible and soft elements. A soft actuation mechanism was developed in this work, taking inspiration from the arm of the Oct...

(This article belongs to the Special Issue Soft Actuators)
  • Review
  • Open Access
93 Citations
16,369 Views
24 Pages

Review on the Development, Control Method and Application Prospect of Brake-by-Wire Actuator

  • Xiaoxiang Gong,
  • Weiguo Ge,
  • Juan Yan,
  • Yiwei Zhang and
  • Xiangyu Gongye

5 March 2020

This paper reviews and summarizes the development, key technologies, and application of brake-by-wire (BBW) actuators. BBW is the technology orientation of future vehicle brake system. The main feature of BBW is to replace some of the mechanical and...

  • Article
  • Open Access
93 Citations
8,956 Views
21 Pages

Intelligent Vehicle Lateral Control Method Based on Feedforward + Predictive LQR Algorithm

  • Tao Yang,
  • Ziwen Bai,
  • Zhiqiang Li,
  • Nenglian Feng and
  • Liqing Chen

9 September 2021

Aiming at the problems of control stability of the intelligent vehicle lateral control method, single test conditions, etc., a lateral control method with feedforward + predictive LQR is proposed, which can better adapt to the problem of intelligent...

(This article belongs to the Section Actuators for Surface Vehicles)
  • Review
  • Open Access
91 Citations
16,556 Views
31 Pages

25 February 2023

Over the past decade, 3D printing technology has been leading the manufacturing revolution. A recent development in the field of 3D printing has added time as a fourth dimension to obtain 4D printing parts. A fabricated design created by 3D printing...

(This article belongs to the Section Actuator Materials)
  • Review
  • Open Access
84 Citations
15,314 Views
30 Pages

19 December 2020

Traditional rigid robot application in the medical field is limited due to the limited degrees of freedom caused by their material and structure. Inspired by trunk, tentacles, and snakes, continuum robot (CR) could traverse confined space, manipulate...

(This article belongs to the Special Issue Soft Actuation: State of the Art and Outlook)
  • Article
  • Open Access
84 Citations
24,498 Views
26 Pages

22 August 2017

The Series Elastic Actuator (SEA) has recently been developed by many research groups and applied in various fields. As SEA is the combination of motor, spring, gear and load, various types and configurations of mechanism have been developed as SEAs...

(This article belongs to the Special Issue Variable Stiffness and Variable Impedance Actuators)
  • Review
  • Open Access
83 Citations
20,017 Views
22 Pages

Self-Sensing Ionic Polymer Actuators: A Review

  • Karl Kruusamäe,
  • Andres Punning,
  • Alvo Aabloo and
  • Kinji Asaka

2 March 2015

Ionic electromechanically active polymers (IEAP) are laminar composites that can be considered attractive candidates for soft actuators. Their outstanding properties such as low operating voltage, easy miniaturization, and noiseless operation are, ho...

(This article belongs to the Special Issue Feature Papers)
  • Review
  • Open Access
82 Citations
10,770 Views
21 Pages

A Review on Parametric Dynamic Models of Magnetorheological Dampers and Their Characterization Methods

  • Andrea Rossi,
  • Francesco Orsini,
  • Andrea Scorza,
  • Fabio Botta and ,
  • Nicola Pio Belfiore and
  • Salvatore Andrea Sciuto
  • + 1 author+ 0 author

4 April 2018

Magnetorheological (MR) fluids are capable of manifesting a rheological behaviour change by means of a magnetic field application and can be employed in many complex systems in many technical fields. One successful example is their use in the develop...

  • Article
  • Open Access
79 Citations
5,971 Views
18 Pages

Robust Adaptive Control of Knee Exoskeleton-Assistant System Based on Nonlinear Disturbance Observer

  • Anwer S. Aljuboury,
  • Akram Hashim Hameed,
  • Ahmed R. Ajel,
  • Amjad J. Humaidi and ,
  • Ahmed Alkhayyat and
  • Ammar K. Al Mhdawi
  • + 1 author+ 0 author

4 March 2022

This study presents a control design of an angular position for the exoskeleton knee assistance system based on a model reference adaptive control (MRAC) strategy. Three schemes of the MRAC design have been proposed: the classical MRAC, MRAC with an...

(This article belongs to the Section Actuators for Robotics)
  • Review
  • Open Access
76 Citations
14,081 Views
21 Pages

Base Metal Co-Fired Multilayer Piezoelectrics

  • Lisheng Gao,
  • Hanzheng Guo,
  • Shujun Zhang and
  • Clive A. Randall

1 March 2016

Piezoelectrics have been widely used in different kinds of applications, from the automobile industry to consumer electronics. The novel multilayer piezoelectrics, which are inspired by multilayer ceramic capacitors, not only minimize the size of the...

(This article belongs to the Special Issue Piezoelectric Actuators)
  • Article
  • Open Access
75 Citations
7,187 Views
30 Pages

Multi-UAV Optimal Mission Assignment and Path Planning for Disaster Rescue Using Adaptive Genetic Algorithm and Improved Artificial Bee Colony Method

  • Haoting Liu,
  • Jianyue Ge,
  • Yuan Wang,
  • Jiacheng Li and ,
  • Kai Ding,
  • Zhiqiang Zhang,
  • Zhenhui Guo,
  • Wei Li and
  • Jinhui Lan
  • + 4 authors+ 0 author

28 December 2021

An optimal mission assignment and path planning method of multiple unmanned aerial vehicles (UAVs) for disaster rescue is proposed. In this application, the UAVs include the drug delivery UAV, image collection UAV, and communication relay UAV. When i...

(This article belongs to the Topic Motion Planning and Control for Robotics)
  • Review
  • Open Access
74 Citations
15,995 Views
34 Pages

Plasma Synthetic Jet Actuators for Active Flow Control

  • Haohua Zong,
  • Matteo Chiatto,
  • Marios Kotsonis and
  • Luigi De Luca

1 November 2018

The plasma synthetic jet actuator (PSJA), also named as sparkjet actuator, is a special type of zero-net mass flux actuator, driven thermodynamically by pulsed arc/spark discharge. Compared to widely investigated mechanical synthetic jet actuators dr...

(This article belongs to the Special Issue Synthetic Jet Actuators)
  • Feature Paper
  • Article
  • Open Access
72 Citations
8,991 Views
14 Pages

11 January 2022

To improve the path tracking accuracy of autonomous tractors in operation, an improved Stanley controller (IMP-ST) is proposed in this paper. The controller was applied to a two-wheel tractor dynamics model. The parameters of the IMP-ST were optimize...

(This article belongs to the Special Issue Recent Advances and Challenges in Agricultural Robotics, Unmanned Agricultural Machinery and Autonomous Farming Technologies)
  • Article
  • Open Access
72 Citations
16,015 Views
19 Pages

27 February 2014

A monoarticular series elastic actuator (SEA) reduces energetic and peak power requirements compared to a direct drive (DD) in active prosthetic ankle-foot design. Simulation studies have shown that similar advantages are possible for the knee joint....

(This article belongs to the Special Issue Human Centered Actuators)
  • Review
  • Open Access
68 Citations
12,900 Views
26 Pages

28 June 2021

Compliant continuum robots (CCRs) have slender and elastic bodies. Compared with a traditional serial robot, they have more degrees of freedom and can deform their flexible bodies to go through a constrained environment. In this paper, we classify CC...

(This article belongs to the Section Actuators for Robotics)
  • Article
  • Open Access
68 Citations
14,983 Views
32 Pages

28 January 2023

This study proposes using unmanned aerial vehicles (UAVs) to carry out tasks involving path planning and obstacle avoidance, and to explore how to improve work efficiency and ensure the flight safety of drones. One of the applications under considera...

(This article belongs to the Special Issue Intelligent Control and Robotic System in Path Planning)
  • Feature Paper
  • Article
  • Open Access
68 Citations
16,471 Views
16 Pages

17 July 2018

Soft grippers are known for their ability to interact with objects that are fragile, soft or of an unknown shape, as well as humans in collaborative robotics applications. However, state-of-the-art soft grippers lack either payload capacity or durabi...

(This article belongs to the Special Issue Pneumatic Actuators)
  • Review
  • Open Access
66 Citations
26,611 Views
40 Pages

Piezoelectric Energy Harvesting: A Systematic Review of Reviews

  • Jafar Ghazanfarian,
  • Mohammad Mostafa Mohammadi and
  • Kenji Uchino

26 November 2021

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...

(This article belongs to the Section Actuator Materials)
  • Review
  • Open Access
66 Citations
17,425 Views
25 Pages

A Review of Soft Actuator Motion: Actuation, Design, Manufacturing and Applications

  • Xianzhi Tang,
  • Huaqiang Li,
  • Teng Ma,
  • Yang Yang and ,
  • Ji Luo,
  • Haidan Wang and
  • Pei Jiang
  • + 2 authors+ 0 author

14 November 2022

Compared with traditional rigid robots, soft robots have high flexibility, low stiffness, and adaptability to unstructured environments, and as such have great application potential in scenarios such as fragile object grasping and human machine inter...

(This article belongs to the Special Issue Soft Actuators and Robotics)
  • Article
  • Open Access
63 Citations
14,783 Views
13 Pages

A Crawling Soft Robot Driven by Pneumatic Foldable Actuators Based on Miura-Ori

  • Meng Yu,
  • Weimin Yang,
  • Yuan Yu,
  • Xiang Cheng and
  • Zhiwei Jiao

9 April 2020

Origami structures are highly demanded for engineering applications. Using origami folding to design and actuate mechanisms and machines offers attractive opportunities. In this paper, we design a crawling robot driven by pneumatic foldable actuators...

(This article belongs to the Special Issue Pneumatic Soft Actuators)
  • Review
  • Open Access
62 Citations
7,069 Views
34 Pages

28 November 2023

Piezoelectric ceramic actuators have the advantages of fast response speed and high positioning accuracy and are widely used in micro-machinery, aerospace, precision machining machinery, and other precision positioning fields. However, hysteretic non...

(This article belongs to the Special Issue Shape Memory Alloys and Piezoelectric Materials and Their Applications)
  • Review
  • Open Access
60 Citations
10,272 Views
15 Pages

4D Textiles Made by Additive Manufacturing on Pre-Stressed Textiles—An Overview

  • Hannah Carlotta Koch,
  • David Schmelzeisen and
  • Thomas Gries

10 February 2021

Four-dimensional textiles are textiles that can change shape or function over time by the influence of a stimulus, mainly force and heat. In this review, the focus is on 4D textiles made by additive manufacturing which is built on the concept of 4D p...

(This article belongs to the Section Actuator Materials)
  • Article
  • Open Access
60 Citations
3,990 Views
18 Pages

Practical Adaptive Fast Terminal Sliding Mode Control for Servo Motors

  • Kamran Ali,
  • Zhenwei Cao,
  • Kamal Rsetam and
  • Zhihong Man

22 November 2023

Position control of servo motor systems is a challenging task because of inevitable factors such as uncertainties, nonlinearities, parametric variations, and external perturbations. In this article, to alleviate the above issues, a practical adaptive...

(This article belongs to the Section Control Systems)
  • Article
  • Open Access
59 Citations
16,028 Views
14 Pages

Condition Monitoring with Prediction Based on Diesel Engine Oil Analysis: A Case Study for Urban Buses

  • Hugo Raposo,
  • José Torres Farinha,
  • Inácio Fonseca and
  • L. Andrade Ferreira

16 February 2019

This paper presents a case study and a model to predict maintenance interventions based on condition monitoring of diesel engine oil in urban buses by accompanying the evolution of its degradation. Many times, under normal functioning conditions, the...

  • Article
  • Open Access
59 Citations
4,951 Views
19 Pages

Adaptive Synergetic Motion Control for Wearable Knee-Assistive System: A Rehabilitation of Disabled Patients

  • Shaymaa M. Mahdi,
  • Noor Q. Yousif,
  • Ahmed A. Oglah,
  • Musaab E. Sadiq and ,
  • Amjad J. Humaidi and
  • Ahmad Taher Azar
  • + 1 author+ 0 author

22 June 2022

In this study, synergetic-based adaptive control design is developed for trajectory tracking control of joint position in knee-rehabilitation system. This system is often utilized for rehabilitation of patients with lower-limb disabilities. However,...

(This article belongs to the Section Actuators for Medical Instruments)
  • Review
  • Open Access
59 Citations
15,378 Views
55 Pages

21 February 2025

This systematic review explores recent advancements in control methods for rehabilitation exoskeleton robots, which assist individuals with motor impairments through guided movement. As robotics technology progresses, precise, adaptable, and safe con...

(This article belongs to the Section Actuators for Robotics)
  • Article
  • Open Access
57 Citations
12,475 Views
23 Pages

Robust Force Control of Series Elastic Actuators

  • Andrea Calanca,
  • Luca Capisani and
  • Paolo Fiorini

9 July 2014

Force-controlled series elastic actuators (SEA) are widely used in novel human-robot interaction (HRI) applications, such as assistive and rehabilitation robotics. These systems are characterized by the presence of the “human in the loop”, so that co...

(This article belongs to the Special Issue Soft Actuators)
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Actuators - ISSN 2076-0825