Results 291 to 300 of about 492,457 (346)
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Intelligent Actuators Ways to Autonomous Actuating Systems
IFAC Proceedings Volumes, 1992Abstract The integration of microelectronics within the actuator allows to not only replace the analog position controller but to add several functions which give the actuator more intelligent functions. The actuator control is performed in different levels and includes adaptive nonlinear control, optimization of speed and precision, supervision and ...
Rolf Isermann, Ulrich Raab
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Force Sensorless Admittance Control With Neural Learning for Robots With Actuator Saturation
IEEE transactions on industrial electronics (1982. Print), 2020In this paper, we present a sensorless admittance control scheme for robotic manipulators to interact with unknown environments in the presence of actuator saturation. The external environment is defined as linear models with unknown dynamics.
Guangzhu Peng +3 more
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IEEE transactions on fuzzy systems, 2019
In this paper, an adaptive fuzzy output feedback control problem is investigated for a class of stochastic nonlinear systems in which the fuzzy logic systems are adopted to approximate the unknown nonlinear functions.
Hui Ma +3 more
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In this paper, an adaptive fuzzy output feedback control problem is investigated for a class of stochastic nonlinear systems in which the fuzzy logic systems are adopted to approximate the unknown nonlinear functions.
Hui Ma +3 more
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IEEE transactions on industrial electronics (1982. Print), 2019
This paper designs an active fault-tolerant control system for spacecraft attitude control in the presence of actuator faults, fault estimation errors, and control input constraints.
Qiang Shen +3 more
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This paper designs an active fault-tolerant control system for spacecraft attitude control in the presence of actuator faults, fault estimation errors, and control input constraints.
Qiang Shen +3 more
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Effective Actuation: High Bandwidth Actuators and Actuator Scaling Laws [PDF]
, 2001 Abstract : The project advances active flow control to enable new Air Force capabilities. Advances in both the development of new actuator hardware and in understanding the flow physics have been achieved. Four key new advances have been achieved in Phase I of this AFOSR/STTR Program. First, a new high power (125-160 dB), high bandwidth (factor of 8.6),
E. J. Kerschen, A. B. Cain, G. R. Raman
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Electrochemical Actuators with Multicolor Changes and Multidirectional Actuation
Small, 2022AbstractElectrochemical (EC) actuators have garnered significant attention in recent years, yet there are still some critical challenges to limit their application range, such as responsive time, multifunctionality, and actuating direction. Herein, an EC actuator with a back‐to‐back structure is fabricated by stacking two membranes with bilayer V2O5 ...
Yong Ling +9 more
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Actuation of a discontinuous structure with piezoelectric actuators
Journal of Sound and Vibration, 2008Abstract An alternate approach to exciting a one-dimensional structure with discontinuities using a piezoelectric actuator is presented and examined. Instead of being bonded to the uniform side of a beam, the piezoelectric actuator is attached such that it spans two adjacent rib discontinuities.
Jingdou Wang +3 more
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Error-Constrained LOS Path Following of a Surface Vessel With Actuator Saturation and Faults
IEEE Transactions on Systems, Man, and Cybernetics: Systems, 2018This paper presents an error-constrained line-of-sight (ECLOS) path-following control method for a surface vessel subject to uncertainties, disturbances, and actuator saturation and faults.
Zewei Zheng, Liang Sun, Lihua Xie
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Adaptive Finite Time Control of Nonlinear Systems Under Time-Varying Actuator Failures
IEEE Transactions on Systems, Man, and Cybernetics: Systems, 2019This paper proposes a new finite-time tracking control strategy for a nonlinear uncertain system with actuation failures. The presented control scheme is not dependent on the exact model of system and actuation failures.
F. Wang, Xueyi Zhang
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Conducting IPN actuators: From polymer chemistry to actuator with linear actuation
Synthetic Metals, 2006Among electroactive actuators, those based on electronic conducting polymers (ECPs) possess several advantages (low actuation voltages, large deformations, etc.) but also some drawbacks (bending movements only, delamination, etc.). In order to overcome the delamination process observed in working three-layered actuators, we have developed a new concept
Vidal, F. +6 more
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