Results 61 to 70 of about 2,057 (208)

Rendering of Constraints With Underactuated Haptic Devices

open access: yesIEEE Transactions on Haptics, 2020
Several previous works have studied the application of proxy-based rendering algorithms to underactuated haptic devices. However, all these works make oversimplifying assumptions about the configuration of the haptic device, and they ignore the user's intent.
Daniel Lobo, Miguel A. Otaduy
openaire   +3 more sources

Adaptive Sliding Mode Path Tracking Control for an Underactuated Unmanned Surface Vehicle Based on a Disturbance Observer

open access: yesIET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This paper proposes a composite control strategy combining a disturbance observer (DOB) and an adaptive sliding‐mode controller (ASMC) to enhance the path‐tracking performance of underactuated unmanned surface vehicles. The DOB actively compensates for environmental disturbances while the ASMC handles model uncertainties, with simulations demonstrating
Li Yang, Bao Changchun
wiley   +1 more source

Modeling, Control and Simulation of Upward Jump of a Biped [PDF]

open access: yes, 2012
International audienceThis paper explores the vertical upward jumping of a planar biped. The jumping process is decomposed into the crouching phase, the thrust in the knees, the flight phase, the touchdown and the straightening up movement of the biped ...
Aoustin, Yannick
core   +3 more sources

Robust Yaw Angle Control of an AUV: Terminal Sliding Manifold Based Optimized Super‐Twisting Algorithm

open access: yesIET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This paper proposes a robust adaptive control scheme for an autonomous underwater vehicle to achieve precise path tracking under model uncertainties and ocean disturbances. The design integrates a non‐singular terminal sliding mode, an adaptive super‐twisting algorithm optimized via improved Aquila optimization, and an uncertainty disturbance estimator
Vikas L. Karade   +2 more
wiley   +1 more source

TriTrap: A Robotic Gripper Inspired by Insect Tarsal Chains

open access: yesBiomimetics
Gripping, holding, and moving objects are among the main functional purposes of robots. Ever since automation first took hold in society, optimizing these functions has been of high priority, and a multitude of approaches has been taken to enable cheaper,
Julian Winand   +2 more
doaj   +1 more source

Dynamically Stable 3D Quadrupedal Walking with Multi-Domain Hybrid System Models and Virtual Constraint Controllers [PDF]

open access: yes, 2018
Hybrid systems theory has become a powerful approach for designing feedback controllers that achieve dynamically stable bipedal locomotion, both formally and in practice.
Ames, Aaron D.   +2 more
core   +1 more source

Real-Time Planning with Primitives for Dynamic Walking over Uneven Terrain

open access: yes, 2013
We present an algorithm for receding-horizon motion planning using a finite family of motion primitives for underactuated dynamic walking over uneven terrain.
Manchester, Ian R., Umenberger, Jack
core   +1 more source

2D bipedal walking with knees and feet: A hybrid control approach [PDF]

open access: yes, 2009
In this paper, we consider an anthropomorphically-inspired hybrid model of a bipedal robot with locking knees and feet in order to develop a control law that results in human-like walking.
Ames, Aaron D., Sinnet, Ryan W.
core   +1 more source

Observer‐Based Coupling‐Coordinated Adaptive Hierarchical Sliding Mode Control for Underactuated Nonlinear Systems

open access: yesThe Journal of Engineering, Volume 2026, Issue 1, January/December 2026.
This paper proposes a novel coupling‐based coordinated adaptive hierarchical sliding mode controller integrated with a Luenberger sliding mode observer for a class of underactuated nonlinear systems. The method features a moving sliding manifold with an adaptive law for faster convergence and explicitly manages inter‐state coupling to improve ...
Marzieh Ahmadi, Alireza Faraji
wiley   +1 more source

Horizontal Trajectory Tracking Control for Underactuated Autonomous Underwater Vehicles Based on Contraction Theory

open access: yesJournal of Marine Science and Engineering, 2023
In this paper, contraction theory is applied to design a control law to address the horizontal trajectory tracking problem of an underactuated autonomous underwater vehicle.
Caipeng Ma   +4 more
doaj   +1 more source

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