Results 71 to 80 of about 8,788 (300)

Induced Norm-Based Analysis for Computed Torque Control of Robot Systems

open access: yesIEEE Access, 2020
This paper is concerned with providing a new quantitative analysis method of computed torque control of robot systems by using three types of induced norm. This paper first considers design of a computed torque controller to achieve a trajectory tracking
Jung Hoon Kim, Sung-Moon Hur
doaj   +1 more source

Disturbance observer-based adaptive position control for a cutterhead anti-torque system.

open access: yes, 2022
To conveniently replace worn cutterhead tools in complicated strata, a novel cutterhead attitude control mechanism was recently designed. Meanwhile, the mechanism also causes an engineering problem of how to control a matching cutterhead anti-torque ...
Jinhui Fang   +4 more
core   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Research of active disturbance rejection controller of direct torque control system of permanent magnet synchronous motor based on parameter optimizatio

open access: yesGong-kuang zidonghua, 2013
In view of problems of big torque fluctuation and easy to be influenced by load change existed in direct torque control system of permanent magnet synchronous motor based on PI controller, the paper designed an active disturbance rejection controller ...
YANG Jie, HUANG Ku
doaj  

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

Predictive Flux Control for Induction Motor Drives With Modified Disturbance Observer for Improved Transient Response

open access: yesIEEE Access, 2020
This paper proposes an extended model based predictive flux control (MPFC) with modified disturbance observer speed loop for induction motors. The main advantages of the proposed method are the improvement of load estimation, the suppression of current ...
Muhammad Abbas Abbasi   +5 more
doaj   +1 more source

Reduced-Order Fractionalized Controller for Disturbance Compensation Based on Direct Torque Control of DSIM With Less Harmonic

open access: yes
This paper proposes a new design of a speed regulator loop based on a reduced-order fractionalized proportional-integral controller (ROFrPI) for direct torque control (DTC) of a dual-star induction motor drive with less harmonics in order to improve ...
Bekheira Tabbache   +3 more
core   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

Active Disturbance-Rejection Controller (ADRC)-Based Torque Control for a Pneumatic Rotary Actuator with Positional Interference

open access: yes
The compressibility of air, the uncertainty of dynamic models, and the existence of friction make pneumatic servo systems exhibit strong nonlinearity. Furthermore, the confluence of pneumatic-system nonlinearity and interference from the position system ...
Zilong Wu   +4 more
core   +1 more source

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