Open AccessResearch in offshore transfer cargo operations; challenges, developments, and new frontiers
Author(s) -
Max Suell Dutra,
Ivanovich Lache,
Katrin Ellermann,
Ricardo Ramírez Heredia
Publication year - 2012
Publication title -
ship science and technology/ciencia y tecnologia de buques/el aprendiz
Language(s) - English
Resource type - Journals
eISSN - 2619-645X
pISSN - 1909-8642
DOI - 10.25043/19098642.56
Subject(s) - submarine pipeline , computer science , work (physics) , control (management) , relation (database) , position (finance) , point (geometry) , marine engineering , engineering , mechanical engineering , business , mathematics , artificial intelligence , geometry , geotechnical engineering , finance , database
Currently, offshore operations are considered activities with high impact on the economy, which standsin direct relation to the products of great importance and value for diverse economic sectors. Thus, itbecomes necessary to implement new technologies that make the manipulation of these products fasterand easier. In this work, the authors introduce the problem in offshore cargo transfer operations. Thisproblem involves different kinds of areas: logistics, dynamics, and control are some of them. The authorspresent an approach for the last two. In the dynamic problem is presented a study on the dynamics of asuspended load connected to a crane via a mechanism with two prismatic degrees of freedom. The studiesshow the complex large-amplitude motion of the load given the visibly nonlinear behavior of the ship.Therefore, the development of a fuzzy controller was necessary to decrease oscillations and position theload in one definitive point of interest. The work presents the test results, demonstrating that this typeof manipulator in combination with an effective control strategy allows for the reduction of oscillationsin offshore activities.