Results 281 to 290 of about 2,767,341 (335)
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, 2021
A novel sliding mode control combined with extended state observer (ESO) is proposed for an ankle exoskeleton driven by electrical motor. During the process of assisting, it is necessary to design an effective controller for assisting torque of ankle ...
Jinsong Zhao +5 more
semanticscholar +1 more source
A novel sliding mode control combined with extended state observer (ESO) is proposed for an ankle exoskeleton driven by electrical motor. During the process of assisting, it is necessary to design an effective controller for assisting torque of ankle ...
Jinsong Zhao +5 more
semanticscholar +1 more source
Lubricating behavior of tripod sliding universal joints
Industrial Lubrication and Tribology, 2010PurposeThe purpose of this paper is to understand the lubricating properties of the tripod sliding universal joint (TSUJ) in order to overcome its premature failures caused by the poor lubricating regime.Design/methodology/approachA simplified geometrical model is derived from the main mating surfaces redesigned, and then the effects of the applied ...
X.F. Wang, D.G. Chang
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IEEE Transactions on Cybernetics, 2020
In this article, a new neural-network-based sliding-mode control (SMC) of an uncertain robot is presented. The distinguishing characteristic of the proposed control scheme is that the switching gain is designed as a dynamic model approximated value ...
Chengxiang Liu +3 more
semanticscholar +1 more source
In this article, a new neural-network-based sliding-mode control (SMC) of an uncertain robot is presented. The distinguishing characteristic of the proposed control scheme is that the switching gain is designed as a dynamic model approximated value ...
Chengxiang Liu +3 more
semanticscholar +1 more source
End-to-End Emotion-Cause Pair Extraction Based on Sliding Window Multi-Label Learning
Conference on Empirical Methods in Natural Language Processing, 2020Emotion-cause pair extraction (ECPE) is a new task that aims to extract the potential pairs of emotions and their corresponding causes in a document.
Zixiang Ding, Rui Xia, Jianfei Yu
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Review of the Research on Fixed and Sliding Joints
1973The paper summarises the results of research into the stiffness, damping, friction and wear characteristics of fixed and sliding joints. An attempt has been made to extract from the results of research conducted over the past decade or so, that information which is considered to be of direct interest to the machine tool designer.
N. Back, M. Burdekin, A. Cowley
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Sliding Mode Control of Compliant Joints Robot
IFAC Proceedings Volumes, 2003Abstract The lack of knowledge of robot dynamics and joint elasticity for precise tracking control can be overcome by using either robust or adaptive (learning) control. The standard form of adaptive control does not appear to be applicable since the basic assumptions on the system dynamics and non-linear characteristics are rarely satisfied.
A.B. Sharkawy +3 more
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Sliding Joints from Traditional Asphalt Belts
Advanced Materials Research, 2014Problems with horizontal deformation in the subsoil are often solved for building on undermined areas not only in our region. There are many ways to solve this problem. The existing building can be draw together in total or stiffened belt can be carried out around the structure foundation.
Martina Smirakova +2 more
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Operational Space Model Predictive Sliding Mode Control for Redundant Manipulators
IEEE Transactions on robotics, 2020This article presents a novel robust centralized controller for impedance control and reference tracking of redundant manipulators. The proposed approach takes advantage of the robustness properties of sliding mode control (SMC) and the prediction ...
Davide Nicolis, Fabio Allevi, P. Rocco
semanticscholar +1 more source
Kinematics Simulation on the Centre of Sliding Universal Joints
Applied Mechanics and Materials, 2012This paper based on the improved twin tripod sliding universal joint and let it has the determined movement output. And create the three-dimensional model of twin tripod sliding universal joint before and after improved in software pro/e, and then put it into the simulation module, carry out the kinematic simulation of the tripod center on coupling ...
De Gong Chang, C.C. Wang, B. Zuo
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Dynamics of Multibody Systems with Friction-Affected Sliding Joints
2010In this paper, a new method for the modeling of planar multibody dynamics with friction-affected sliding joints is presented. Each friction-affected sliding joint is split into two unilateral constraints opposite to each other, and the constraint equality is replaced by unilateral inequalities that are expressed in complementary form.
Li Fu +5 more
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