Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Astrid H. Brodtkorb"'
Autor:
Ulrik D. Nielsen, Harry B. Bingham, Astrid H. Brodtkorb, Toshio Iseki, Jørgen J. Jensen, Malte Mittendorf, Raphaël E. G. Mounet, Yanlin Shao, Gaute Storhaug, Asgeir J. Sørensen, Tomoki Takami
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract Optimisation of energy efficiency and operational performance as well as assessment of safety levels and emissions of marine operations require detailed information about the acting wave system. It is possible—with an analogy to classical
Externí odkaz:
https://doaj.org/article/bc598d1e3e3a4bd78918880b2081dd8d
Publikováno v:
IEEE Access, Vol 5, Pp 14787-14796 (2017)
This paper deals with the problem of transient events in model-based observers for dynamic positioning of marine surface vessels. Traditionally, model-based observers experience a deterioration of performance during transients, and there is a give or
Externí odkaz:
https://doaj.org/article/5c74090932a2457eb322986198751e0f
Publikováno v:
Ocean Engineering. 280:114489
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::293921fcf34ec77fabdcb262be5ccec2
https://doi.org/10.1016/j.oceaneng.2023.114489
https://doi.org/10.1016/j.oceaneng.2023.114489
Publikováno v:
International Journal of Control, Automation and Systems. 19:137-144
Accurate underwater navigation systems are required for closed-loop guidance and control of unmanned underwater vehicles (UUV). This paper proposes a sensor-based hybrid translational observer concept for underwater navigation using the hybrid dynami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50b866ad9a69b597a16bd9645b353997
https://doi.org/10.1007/s12555-019-0684-2
https://doi.org/10.1007/s12555-019-0684-2
Autor:
Astrid H. Brodtkorb, Ulrik Dam Nielsen
Publikováno v:
Control Engineering Practice
Brodtkorb, A H & Nielsen, U D 2022, ' Automatic sea state estimation with online trust measure based on ship response measurements ', Control Engineering Practice, vol. 130, 105375 . https://doi.org/10.1016/j.conengprac.2022.105375
Brodtkorb, A H & Nielsen, U D 2022, ' Automatic sea state estimation with online trust measure based on ship response measurements ', Control Engineering Practice, vol. 130, 105375 . https://doi.org/10.1016/j.conengprac.2022.105375
The ever-changing sea state constitutes an integral part of situational awareness for vessels at sea. In this paper, a computationally efficient sea state estimation algorithm is extended by (1) automatic gain and tolerance calculation, and (2) trust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::350fb766389f1d34cbe6efed33851c6f
https://hdl.handle.net/11250/3057608
https://hdl.handle.net/11250/3057608
Autor:
Raphaël E.G. Mounet, Ulrik D. Nielsen, Astrid H. Brodtkorb, Eduardo A. Tannuri, Pedro C. de Mello
Publikováno v:
Mounet, R E G, Nielsen, U D, Brodtkorb, A H, Tannuri, E A & de Mello, P C 2022, ' Simultaneous sea state estimation and transfer function tuning using a network of dynamically positioned ships ', Applied Ocean Research, vol. 129, 103367 . https://doi.org/10.1016/j.apor.2022.103367
Applied Ocean Research
Applied Ocean Research
This paper presents a study focused on wave spectrum estimation in practical scenarios where multiple ships operate in the same geographical area, potentially forming a network of wave recorders. A novel methodology is proposed to improve the accurac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edf7256eb130981fa846e14184c49f78
https://doi.org/10.1016/j.apor.2022.103367
https://doi.org/10.1016/j.apor.2022.103367
Publikováno v:
IFAC-PapersOnLine. 52:378-383
Accurate underwater navigation systems are required for closed-loop guidance and control of unmanned underwater vehicles (UUV). This paper proposes a method for the design of a six degrees-of-freedom (DOF) sensor-based hybrid translational observer c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::704a9d17610e78aaf113b81d1559e34c
https://doi.org/10.1016/j.ifacol.2019.12.336
https://doi.org/10.1016/j.ifacol.2019.12.336
Publikováno v:
International Journal of Control, Automation and Systems
A novel control allocation algorithm for double-ended ferries with symmetrical thruster configuration is proposed. The allocation problem is formulated using the extended thrust representation, resulting in a four dimensional constrained optimization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::565f53478c339ad543eb82cad602f571
https://doi.org/10.1016/j.ifacol.2019.12.281
https://doi.org/10.1016/j.ifacol.2019.12.281
Publikováno v:
Applied Ocean Research
Nielsen, U D, Mounet, R E G & Brodtkorb, A H 2022, ' Parameterised transfer functions with associated confidence bands ', Applied Ocean Research, vol. 125, 103250 . https://doi.org/10.1016/j.apor.2022.103250
Nielsen, U D, Mounet, R E G & Brodtkorb, A H 2022, ' Parameterised transfer functions with associated confidence bands ', Applied Ocean Research, vol. 125, 103250 . https://doi.org/10.1016/j.apor.2022.103250
This paper presents a method that can be used to obtain the motion transfer functions of a ship when the detailed hull geometry is not available. In the method, any parameterised transfer function can be optimised from a data-driven approach that com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa2b0933dc51c6925e5f650ca0a67697
https://doi.org/10.1016/j.apor.2022.103250
https://doi.org/10.1016/j.apor.2022.103250
Publikováno v:
IFAC-Papers
This paper investigates the application of adaptive backstepping control to a hybrid power system for ship propulsion, using a main diesel engine in conjunction with a battery for auxiliary power supply. Fuel injection delay to the diesel engine is e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65d559337c08023d2db1d772e9e6de66
https://hdl.handle.net/11250/2989746
https://hdl.handle.net/11250/2989746