期刊
IEEE-ASME TRANSACTIONS ON MECHATRONICS
卷 25, 期 3, 页码 1398-1408出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMECH.2020.2975567
关键词
Vibrations; Adaptive systems; IEEE transactions; Mechatronics; Uncertainty; Vibration control; Boundary control; flexible risers; input dead zone; robust adaptive control; vibration control
类别
资金
- National Natural Science Foundation of China [61803109, 11832009, 61803111]
- Innovative School Project of Education Department of Guangdong [2017KQNCX153, 2018KQNCX192, 2017KZDXM060]
- Science and Technology Planning Project of Guangzhou City [201904010494, 201904010475]
- City University of Hong Kong [7005092]
- National Research Foundation of Korea (NRF) - Korea government (Ministry of Science and ICT) [NRF-2020R1A2C1005449]
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.
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