Optimal 3D time-energy trajectory planning for AUVs using ocean general circulation models
KAUST DepartmentApplied Mathematics and Computational Science Program
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Earth Fluid Modeling and Prediction Group
Earth Science and Engineering Program
Physical Science and Engineering (PSE) Division
Online Publication Date2020-11-01
Print Publication Date2020-12
Embargo End Date2022-11-01
Permanent link to this recordhttp://hdl.handle.net/10754/664028
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AbstractThis paper develops a new approach for solving optimal time and energy trajectory planning problems for Autonomous Underwater Vehicles (AUVs) in transient, 3D, ocean currents. Realistic forecasts using an Ocean General Circulation Model (OGCM) are used for this purpose. The approach is based on decomposing the problem into a minimal time problem, followed by minimal energy subproblems. In both cases, a non-linear programming (NLP) formulation is adopted. The scheme is demonstrated for time-energy trajectory planning problems in the Gulf of Aden. In particular, the numerical experiments illustrate the capability of generating Pareto optimal solutions in a broad range of mission durations. In addition, the analysis also highlights how the methodology effectively exploits both the vertical structure of the current field, as well as its unsteadiness, namely to minimize travel time and energy consumption.
CitationAlbarakati, S., Lima, R. M., Theußl, T., Hoteit, I., & Knio, O. M. (2020). Optimal 3D time-energy trajectory planning for AUVs using ocean general circulation models. Ocean Engineering, 218, 108057. doi:10.1016/j.oceaneng.2020.108057
SponsorsResearch reported in this publication was supported by research funding from King Abdullah University of Science and Technology (KAUST), and used resources of the KAUST Core Labs.
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Videos with results from the paper "Optimal 3D time-energy trajectory planning for AUVs using ocean general circulation models" by Albarakati S., Lima R.M., Theußl T., Hoteit I., Knio O. Handle: http://hdl.handle.net/10754/664034