Zobrazeno 1 - 10
of 48
pro vyhledávání: '"T. Kokkinis"'
Autor:
T. Kokkinis, M. Sahraian
Publikováno v:
Journal of Mechanical Design. 115:289-293
The problem of end-point positioning of flexible arms is discussed. Because of the nonminimum phase nature of the problem, inversion fails to produce bounded joint torques. Bounded noncausal joint torques for achieving the task of end-point tracking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec5d014bc1361297b4c4cb1b17e21a50
https://doi.org/10.1115/1.2919190
https://doi.org/10.1115/1.2919190
Autor:
M. Sahraian, T. Kokkinis
Publikováno v:
Proceedings of the IEEE International Workshop on Intelligent Motion Control.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adae4010545daaf6ed1bb0d42af90fdb
https://doi.org/10.1109/imc.1990.687374
https://doi.org/10.1109/imc.1990.687374
Autor:
T. Kokkinis, R. Stoughton
Publikováno v:
ICRA
A new spacial mechanism is described which can provide the basic 3 degrees of freedom (DOF) of a manipulator. All three motors are mounted fixed to the base support structure to greatly reduce the arm inertia. Motion is transmitted via a differential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fced4035cd2d9b3598b6517cdafde30d
https://doi.org/10.1109/robot.1987.1087977
https://doi.org/10.1109/robot.1987.1087977
Publikováno v:
23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, Parts A and B.
A number of spars are being installed in deepwater areas in the Gulf of Mexico (GoM) which are subject to loop / eddy current conditions and require that their mooring system be designed for Vortex Induced Motion (VIM). This paper presents insights i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba3dec9320bd5b06b7afc684b9e54207
https://doi.org/10.1115/omae2004-51547
https://doi.org/10.1115/omae2004-51547
Publikováno v:
23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, Parts A and B.
A number of spars are being installed in deepwater areas in the Gulf of Mexico (GoM), which are subject to loop / eddy current conditions and must be designed for Vortex-Induced Motion (VIM). This paper shows how recent advances in VIM prediction ena
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::518a47e9c461c6c31895a2d90dac2a42
https://doi.org/10.1115/omae2004-51546
https://doi.org/10.1115/omae2004-51546
Publikováno v:
ICRA
The authors present results on the performance of a 3 d.o.f. closed-chain direct-drive mechanism controlled by a high-performance real-time computer using a variety of model-based control techniques. Experimental data are used to compare the tracking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2a8b7678e899c2551546fcff77d23e9
https://doi.org/10.1109/robot.1991.131896
https://doi.org/10.1109/robot.1991.131896
Autor:
M. Sahraian, T. Kokkinis
Publikováno v:
Fifth International Conference on Advanced Robotics 'Robots in Unstructured Environments.
Discusses the inverse dynamics problem for flexible open-chain robot arms. In earlier work the authors (1990) derived an approximate solution to this inverse dynamics problem, using optimal control theory. The solution found with this method is nonca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3a7e5fa48b8a30a93218770f30b98a5
https://doi.org/10.1109/icar.1991.240661
https://doi.org/10.1109/icar.1991.240661
Publikováno v:
Fifth International Conference on Advanced Robotics 'Robots in Unstructured Environments.
The authors discuss the inverse dynamics of parallel robot arms with closed-chain mechanical structure and show the implications for motion control using nonlinear inversion. They demonstrate the experimental motion control results for the prototype
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cbcd98eb1cd4e4e08670b84b814b09e
https://doi.org/10.1109/icar.1991.240406
https://doi.org/10.1109/icar.1991.240406
Autor:
T. Kokkinis, M. M. Bernitsas
Publikováno v:
Journal of Applied Mechanics. 51:560-565
Columns, marine risers, pipelines, hydraulic columns, and legs of tension leg platforms can be modeled for customary Euler buckling analysis by a single model which, in its most general form, applies to risers. Previous work has shown that numerical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fc73973225b7a53a940c2411bda1811
https://doi.org/10.1115/1.3167674
https://doi.org/10.1115/1.3167674
Autor:
T. Kokkinis, M. M. Bernitsas
Publikováno v:
Journal of Energy Resources Technology. 105:277-281
Open-ended tubular columns may buckle globally as Euler columns due to the action of internal fluid pressure even while they are in tension along their entire length. Hydraulic columns, marine drilling and production risers are, therefore, prone to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7892df56d6e3fac2e797f7c9a23560b8
https://doi.org/10.1115/1.3230915
https://doi.org/10.1115/1.3230915