Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Anh-Tuan Vo"'
Publikováno v:
IEEE Access, Vol 9, Pp 31225-31235 (2021)
In this paper, a fault-tolerant control (FTC) method for robotic manipulators is proposed to deal with the lumped uncertainties and faults in case of lacking tachometer sensors in the system. First, the third-order sliding mode (TOSM) observer is per
Externí odkaz:
https://doaj.org/article/05e1ca2b718b4326bd95db2eb39b5947
Publikováno v:
IEEE Access, Vol 8, Pp 78109-78120 (2020)
This paper proposes a controller-observer strategy for a class of second-order uncertain nonlinear systems with only available position measurement. The third-order sliding mode observer is first introduced to estimate both velocities and the lumped
Externí odkaz:
https://doaj.org/article/c0cf73d76c664645bf0365eb0000e85d
Publikováno v:
Applied Sciences, Vol 13, Iss 15, p 8939 (2023)
This paper addresses three significant challenges in controlling robot manipulators: improving response time, minimizing steady-state errors and chattering, and enhancing controller robustness. It also focuses on eliminating the need for computing th
Externí odkaz:
https://doaj.org/article/37ca8aaa37a44c5ead9ad4dc59a3892d
Publikováno v:
Mathematics, Vol 11, Iss 10, p 2307 (2023)
This paper proposes a fixed-time neural network-based prescribed performance control method (FNN-PPCM) for robot manipulators. A fixed-time sliding mode controller (SMC) is designed with its strengths and weaknesses in mind. However, to address the l
Externí odkaz:
https://doaj.org/article/a194a12834cd4be8a0ff39331ad6710c
Publikováno v:
Machines, Vol 11, Iss 2, p 140 (2023)
This work investigates the issue of a hybrid trajectory tracking control algorithm (HTCA) for robot manipulators (RMs) with uncertain dynamics and the effect of external disturbances. Following are some proposals for achieving the control target. Fir
Externí odkaz:
https://doaj.org/article/e51bd1420d014ec0b2f66697afca66a5
Publikováno v:
International Journal of Mechanical Engineering and Robotics Research. :32-39
Publikováno v:
Sensors, Vol 22, Iss 7, p 2615 (2022)
Through this article, we present an advanced prescribed performance-tracking control system with finite-time convergence stability for uncertain robotic manipulators. It is therefore necessary to define a suitable performance function and error trans
Externí odkaz:
https://doaj.org/article/8744ff51b2784e3283630445ee02e4bb
Publikováno v:
Sensors, Vol 21, Iss 23, p 8101 (2021)
Many terminal sliding mode controllers (TSMCs) have been suggested to obtain exact tracking control of robotic manipulators in finite time. The ordinary method is based on TSMCs that secure trajectory tracking under the assumptions such as the known
Externí odkaz:
https://doaj.org/article/f0b3b16e0db8468083c7cd80cd6a615b
Publikováno v:
Sensors, Vol 21, Iss 21, p 7084 (2021)
In this paper, a robust observer-based control strategy for n-DOF uncertain robot manipulators with fixed-time stability was developed. The novel fixed-time nonsingular sliding mode surface enables control errors to converge to the equilibrium point
Externí odkaz:
https://doaj.org/article/c38dd609371a43e38877558ef8e67342
Autor:
Anh Tuan Vo, Thanh Van Nguyen, Son Minh Kieu, An Quang Kieu, Kha Tan Huynh, Quynh Ngoc Hoa Nguyen, Truc T. T. Nguyen, Tien Cong Nguyen
Publikováno v:
Journal for Vascular Ultrasound. 46:160-164
Background: The global prevalence of chronic kidney disease (CKD) continues to increase, with the arteriovenous fistula (AVF) as the most preferred vascular access for hemodialysis. Whether routine preoperative ultrasound mapping improves the outcome