@article{76cf130cc95e445e8c0ee917451e7579,
title = "Dead Zone Compensation and Adaptive Vibration Control of Uncertain Spatial Flexible Riser Systems",
abstract = "This article provides a framework of dead zone compensation and robust adaptive vibration control for uncertain spatial flexible riser systems. First, nonsymmetric dead zone nonlinearity is represented in the form of the desired control input with the addition of an extra nonlinear input error. Second, by visualizing those input errors and extrinsic disturbances as an unknown 'disturbance-like' term, a new robust adaptive vibration control technology and online updating laws can be constructed for riser systems to guarantee the oscillation reduction and compensation of uncertainties and dead zone. Third, the constructed control ensures and achieves bounded Lyapunov stability in the controlled system. Ultimately, control performances are demonstrated with appropriate design parameters.",
keywords = "Boundary control, flexible risers, input dead zone, robust adaptive control, vibration control",
author = "Zhijia Zhao and Ahn, {Choon Ki} and Li, {Han Xiong}",
note = "Funding Information: Manuscript received August 12, 2019; revised December 23, 2019; accepted February 16, 2020. Date of publication February 21, 2020; date of current version June 15, 2020. Recommended by Technical Editor Dr. Y.-J. Pan. This work was supported in part by the National Natural Science Foundation of China under Grant 61803109, Grant 11832009, and Grant 61803111, in part by the Innovative School Project of Education Department of Guangdong under Grant 2017KQNCX153, Grant 2018KQNCX192, and Grant 2017KZDXM060, in part by the Science and Technology Planning Project of Guangzhou City under Grant 201904010494 and Grant 201904010475, in part by a project from City University of Hong Kong under Grant 7005092, and in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT) (No. NRF-2020R1A2C1005449). (Corresponding authors: Zhijia Zhao; Choon Ki Ahn.) Zhijia Zhao is with the School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China (e-mail: zhjzhaoscut@163.com). Publisher Copyright: {\textcopyright} 1996-2012 IEEE.",
year = "2020",
month = jun,
doi = "10.1109/TMECH.2020.2975567",
language = "English",
volume = "25",
pages = "1398--1408",
journal = "IEEE/ASME Transactions on Mechatronics",
issn = "1083-4435",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "3",
}