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Actuators, Volume 13, Issue 1

January 2024 - 44 articles

Cover Story: Soft robots have become prominent due to the use of flexible and compliant materials. Precise position control is a key challenge in developing them, necessitating accurate modeling. This study proposes a hybrid-actuated soft robot that uses both the air pressure and tendons for robot-assisted cardiac ablation; this is a minimally invasive procedure used to treat cardiac arrhythmias. The dynamics of the soft robot are modeled using the Cosserat rod theory to predict the robot's response to the control inputs. By incorporating the effects of internal pressure during dynamic formulation, this approach improves upon the existing literature. Through experimental validation and a ranging tendon tension (0-3 N) and air pressure (0-40 kPa), we confirm the model's accuracy, demonstrating the successful prediction of diverse scenarios. View this paper
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Articles (44)

  • Article
  • Open Access
9 Citations
3,652 Views
13 Pages

14 January 2024

Permanent magnet synchronous linear motor (PMSLM) is widely used to meet the requirement of high dynamic accuracy positioning, such as in machine tools and devices of semiconductor manufacturing. A new 2-DOF control structure is proposed in this pape...

  • Article
  • Open Access
2 Citations
2,139 Views
13 Pages

14 January 2024

Interference fit is often used in rotating machinery to transmit torque and force. The actual interference value is uncertain due to factors such as manufacturing errors and operating conditions, resulting in a gap between the response of the system...

  • Article
  • Open Access
4 Citations
3,269 Views
18 Pages

13 January 2024

Emerging robotic systems with compliant characteristics, incorporating nonrigid links and/or elastic actuators, are opening new applications with advanced safety features, as well as improved performance and energy efficiency in contact tasks. Howeve...

  • Article
  • Open Access
5 Citations
3,776 Views
31 Pages

12 January 2024

In this article, the research team systematically developed a method to model the kinematics and dynamics of a 3-wheeled robot subjected to external disturbances and sideways wheel sliding. These models will be used to design control laws that compen...

  • Article
  • Open Access
5 Citations
2,451 Views
26 Pages

11 January 2024

The influencing characteristic for the evolution mechanism of a dynamic stall vortex structure and distributed blowing control on rotor airfoils was investigated. Based on the moving-embedded grid method, the finite volume scheme, and Roe’s FDS...

  • Article
  • Open Access
5 Citations
3,704 Views
24 Pages

11 January 2024

Existing traditional expansion state observers exhibit good tracking performance for constant and low-frequency disturbances. However, their ability to track non-constant disturbances such as ramp and high-frequency harmonics is inadequate. This pape...

  • Article
  • Open Access
3 Citations
5,811 Views
16 Pages

Hierarchical Understanding in Robotic Manipulation: A Knowledge-Based Framework

  • Runqing Miao,
  • Qingxuan Jia,
  • Fuchun Sun,
  • Gang Chen and
  • Haiming Huang

10 January 2024

In the quest for intelligent robots, it is essential to enable them to understand tasks beyond mere manipulation. Achieving this requires a robust parsing mode that can be used to understand human cognition and semantics. However, the existing method...

  • Article
  • Open Access
2 Citations
2,820 Views
24 Pages

Design and Control of a Reconfigurable Robot with Rolling and Flying Locomotion

  • Qing Chang,
  • Biao Yu,
  • Hongwei Ji,
  • Haifeng Li,
  • Tiantian Yuan,
  • Xiangyun Zhao,
  • Hongsheng Ren and
  • Jinhao Zhan

9 January 2024

Given the continual rise in mission diversity and environmental complexity, the adept integration of a robot’s aerial and terrestrial locomotion modes to address diverse application scenarios has evolved into a formidable challenge. In this pap...

  • Article
  • Open Access
12 Citations
3,215 Views
18 Pages

9 January 2024

This study provides simulation and experimental results on techniques for avoiding static and dynamic obstacles using a deep Q-learning (DQL) reinforcement learning algorithm for a two-wheel mobile robot with independent control. This method integrat...

  • Article
  • Open Access
5 Citations
2,536 Views
18 Pages

8 January 2024

The paper deals with the development of a model-based current-signature algorithm for the detection and isolation of power switch faults in three-phase Permanent Magnet Synchronous Motors (PMSMs). The algorithm, by elaborating the motor currents feed...

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Actuators - ISSN 2076-0825