Integrated Dynamic Modeling and Ground Test Validation for Spacecraft Micro-Vibration Suppression Considering Disturbance, Isolation, and Pointing Control. [PDF]
Sensors (Basel)Wang H, Yan H, Tian L, Zang X, Zu Y.
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Design and Flight Experiment of a Motor-Directly-Driven Flapping-Wing Micro Air Vehicle with Extension Springs. [PDF]
Biomimetics (Basel)Choi S, Oh C, Kang T, Park J.
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ROV dynamic modeling and grasping algorithm for underwater control system of marine oil and gas. [PDF]
Sci RepLi Y, Li S, Li Y.
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Coupled aerodynamic-electromagnetic modeling for RCS estimation of million-scale chaff clouds with arbitrarily curved 3D geometries. [PDF]
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Experimental Determination of Roll Damping Coefficient for FPSO
Volume 1A: Offshore Technology, 2014The roll damping coefficient is a crucial parameter for several design and operational aspects of FPSOs. The accurate prediction of the coefficient is not a trivial task and generally performed experimentally. A polynomial linearization of the decay test data has been widely applied in the offshore industry.
Oliver A. Seelis, Longbin Tao
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Damping Coefficients for Extreme Rolling and Capsize: An Analytical Approach
Journal of Ship Research, 2000A method to identify the law of roll motion decay from extreme angles is presented based on perturbations of the elliptic-type solutions of the corresponding Hamiltonian system. Restoring polynomials up to the 7th order are considered. It is shown that the decay law can be expressed in closed form for up to quintic restoring.
K. J. Spyrou, J. M. T. Thompson
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Ship Roll Damping Coefficient Prediction Using CFD
Journal of Ship Research, 2019For a ship undergoing roll motion at a resonance frequency, the roll restoring moment and virtual moment of inertia counteract each other and only the damping moment resists the roll exciting moments. Hence, accurate computation of the roll damping moment improves the roll motion prediction.
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Roll Damping Coefficients Assessment and Comparison for Round Bilge and Hard Chine Hullforms
Volume 9: Odd M. Faltinsen Honoring Symposium on Marine Hydrodynamics, 2013The sustainable design of small passenger vessels and large size pleasure craft indicates new trends: lower speed, reduced fuel consumption and better seakeeping in all range of velocities. Small amplitudes of roll motion are considered one of the most important comfort parameter. These trends call for reviewing some commonly used concepts and designer
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