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Actuators, Volume 11, Issue 6

June 2022 - 32 articles

Cover Story: This paper presents a novel cam-based variable stiffness actuator (VSA). It significantly differs from its counterparts in that the external load is distributed on its two motors with a small difference. It is a feasible method to improve VSA’s output power, especially in compact joints, such as rehabilitation devices. The stiffness adjustment involves a spring-balanced crank-slider mechanism with a variable-length base frame. Its tunable node is the common node for force decomposition, synthesis, stiffness adjustment, and position control by setting it as the common groove of two differential variable-pitch cams. The pitch curve synthesis method is put forward to optimize load distribution. The dual motors can work together closely in the same direction against the output load. View this paper
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Articles (32)

  • Communication
  • Open Access
9 Citations
3,639 Views
9 Pages

Effect of Wearing Running Shoes on Lower Limb Kinematics by Using OpenSim Simulation Software

  • Gunarajulu Renganathan,
  • Hamidreza Barnamehei,
  • Swagata Das and
  • Yuichi Kurita

6 June 2022

(1) Flatfoot is a common malformation in both children and adults, in which a proper arch fails to develop. This study aimed to see how over-the-counter running shoes improved the gait patterns of flatfoot patients. (2) Methods: Three healthy flatfoo...

  • Article
  • Open Access
12 Citations
3,389 Views
12 Pages

Data-Driven Predictive Control of Interconnected Systems Using the Koopman Operator

  • Duvan Tellez-Castro,
  • Camilo Garcia-Tenorio,
  • Eduardo Mojica-Nava,
  • Jorge Sofrony and
  • Alain Vande Wouwer

6 June 2022

Interconnected systems are widespread in modern technological systems. Designing a reliable control strategy requires modeling and analysis of the system, which can be a complicated, or even impossible, task in some cases. However, current technologi...

  • Article
  • Open Access
4 Citations
4,217 Views
16 Pages

5 June 2022

Both the position and force control of robots are needed in industrial manufacturing, such as in assembly and grinding, etc. In this paper, we concentrate on two issues. One is the system oscillation in traditional hybrid force–position control...

  • Article
  • Open Access
3 Citations
2,999 Views
10 Pages

2 June 2022

This study proposes a novel magnetic circuit design to reduce the size of horizontal linear vibration motors (HLVMs) used in vehicle touchscreens. The HLVM prototype uses two thick permanent magnets to create a magnetic circuit below the voice coil;...

  • Article
  • Open Access
5 Citations
3,121 Views
20 Pages

Experimental and Numerical Study on Incident Shock Wave/Boundary Layer Interaction Control

  • Chuanbiao Zhang,
  • Yanhao Luo,
  • Hua Liang,
  • Shanguang Guo and
  • Hesen Yang

2 June 2022

This study was designed to explore the control effect of pulsed arc discharge plasma actuation on the incident shock wave/boundary layer interaction (ISWBLI). Research was conducted on an ISWBLI flow field with 10 kHz single-channel pulsed arc discha...

  • Article
  • Open Access
10 Citations
4,828 Views
18 Pages

Development of a Novel Dual Servo Magnetic Levitation Stage

  • Dahoon Ahn,
  • Ji-Won Jin,
  • Hyeeun Yun and
  • Jaeheon Jeong

30 May 2022

The main objective of this paper is to propose, design, and control a novel dual servo magnetic levitation stage which is precise and vacuum compatible. The dual servo mechanism, comprising a coarse stage and a fine stage, was applied to a magnetic l...

  • Article
  • Open Access
4 Citations
2,358 Views
17 Pages

29 May 2022

With the continuous development of wireless sensor network (WSN) technology, WSN has gradually become one of the key technologies of the Internet, and is widely used in indoor target location technology. However, the obstacles will have a great influ...

  • Article
  • Open Access
3 Citations
2,981 Views
14 Pages

Research on Control Strategy of Heavy-Haul Train on Long and Steep Downgrades

  • Huazhen Yu,
  • Guoxuan Tai,
  • Zhengnan Lin and
  • Youneng Huang

28 May 2022

The control of heavy-haul trains has always been the focus of China’s railway transportation development. One key challenge is the coordination of electric braking and air braking control when the electric-air combined braking is applied on lon...

  • Article
  • Open Access
3 Citations
2,794 Views
16 Pages

28 May 2022

Frequency response functions (FRFs) of rotor systems can be used as indicator functions for condition monitoring. Component-wise FRFs are of high interest to locate errors in the case of defects. To enable continuous monitoring, measurements should b...

  • Article
  • Open Access
3 Citations
3,248 Views
15 Pages

Research on Takagi-Sugeno Fuzzy-Model-Based Vehicle Stability Control for Autonomous Vehicles

  • Zeyu Jiao,
  • Jian Wu,
  • Zhengfeng Chen,
  • Fengbo Wang,
  • Lijun Li,
  • Qingfeng Kong and
  • Fen Lin

26 May 2022

Human–machine cooperative driving is an important stage in the development of autonomous driving technology. However, in emergencies, the problem of vehicle stability control for human–computer cooperative autonomous vehicles is still wor...

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Actuators - ISSN 2076-0825