Proceedings of the ... International Conference on Offshore Mechanics and Arctic EngineeringAmerican Society of Mechanical Engineers, 1994 - Arctic regions |
From inside the book
Results 1-3 of 75
Page 260
... modes are augmented . In the DVFB , velocity sensors and actuators are collocated and measured velocities are directly fed back . By this method damping coefficient matrix of the system become strictly ... modes and R residual modes 260.
... modes are augmented . In the DVFB , velocity sensors and actuators are collocated and measured velocities are directly fed back . By this method damping coefficient matrix of the system become strictly ... modes and R residual modes 260.
Page 261
where subscript C shows controlled modes and R residual modes . Nc x M matrix Bc and NR × M matrix BR are given by dividing PL . Number of controlled modes Nc must be equal to number of actuators M so that the each modes can be ...
where subscript C shows controlled modes and R residual modes . Nc x M matrix Bc and NR × M matrix BR are given by dividing PL . Number of controlled modes Nc must be equal to number of actuators M so that the each modes can be ...
Page 411
... modes of vibration ) . It is clear that high frequency modes beyond the significant band - width of the excitation spectrum would contribute insignificantly to the total response . Bearing this fact , a cut- off limit can be found based ...
... modes of vibration ) . It is clear that high frequency modes beyond the significant band - width of the excitation spectrum would contribute insignificantly to the total response . Bearing this fact , a cut- off limit can be found based ...
Contents
OCEAN WAVES AND ENERGY | 1 |
Load Control Method and Its Realization on an OWC Wave Power Converter | 19 |
Nonlinearity in CrestTrough Statistics of Bretschneider Seas | 27 |
Copyright | |
25 other sections not shown
Other editions - View all
Common terms and phrases
added mass amplitude analysis ASME boundary conditions buoy calculated Circular Cylinder compliant tower components correlation length curve deck diameter diffraction dimensionless drag coefficient drag force drift force dynamic effects Engineering envelope equation experimental Figure fluid Fluid Mechanics free surface heave Hilbert transform horizontal hydrodynamic hydrodynamic force incident wave increase installation interaction irregular waves lift coefficient lift force linear load control lock-in matrix maximum measured method model tests modes mooring line nonlinear obtained Ocean Offshore Technology OMAE oscillating cylinder parameters peak phase pipe platform predicted present pressure problem quadratic Quickwave random ratio response Reynolds number riser seastate second-order shear shedding frequency shown simulation solution spectral spectrum stationary cylinder stiffeners Strouhal Strouhal number transfer function transverse turbulence uniform flow values velocity potential vertical vibration vortex shedding water depth Wave Force wave frequency wave power