Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1; Volume 7, Part 1American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 447
... array is discussed and some possible applications are suggested . INTRODUCTION Conventional acoustic arrays consist ... array elements is required if the beam width is to be made narrow . Take , for example , a line array of hydrophones ...
... array is discussed and some possible applications are suggested . INTRODUCTION Conventional acoustic arrays consist ... array elements is required if the beam width is to be made narrow . Take , for example , a line array of hydrophones ...
Page 448
... ARRAY and an Consider a simple disc arrangement acoustic wave incident upon the disc from direction Y = 0 ( Fig . 3 ) . The output of hydrophone 2 will lag that of hydrophone 1 by delay where 2rsin ( t ) / V = a time varying function V ...
... ARRAY and an Consider a simple disc arrangement acoustic wave incident upon the disc from direction Y = 0 ( Fig . 3 ) . The output of hydrophone 2 will lag that of hydrophone 1 by delay where 2rsin ( t ) / V = a time varying function V ...
Page 451
... Array of Hydrophones P Px1 × 2 ( 0 ) [ H , H2 dsin ( 0 ) FI92 : Two Hydrophone Array 0 1.0 d 0.125 0.85 10.25 0.47 10.375 0.025 0.5 -0.30 0.625 -0.40 0.750 -0.26 0.875 -0.00 1.0 0.22 1.125 0.30 1.25 0.20 1.375 0.00 1.50 -0.18 1.625 ...
... Array of Hydrophones P Px1 × 2 ( 0 ) [ H , H2 dsin ( 0 ) FI92 : Two Hydrophone Array 0 1.0 d 0.125 0.85 10.25 0.47 10.375 0.025 0.5 -0.30 0.625 -0.40 0.750 -0.26 0.875 -0.00 1.0 0.22 1.125 0.30 1.25 0.20 1.375 0.00 1.50 -0.18 1.625 ...
Contents
FLOATING PRODUCTION SYSTEMS | 1 |
OFFSHORE MECHANICS | 23 |
Early Production Systems in the North | 31 |
Copyright | |
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analysis angle applied axial bending cable calculated characteristics coefficient components Conference connected considered construction cost curve damage depth determined diameter direction displacement distribution dynamic effect element energy Engineering equation equipment fatigue field Figure flexible flow forces frequency function geometry given important included increase installation International joint length limit linear load lower mass material matrix maximum mean measured Mechanics method mode mooring motion natural normal obtained Offshore operation parameters performance period pile pipe pipeline platform position presented pressure problem production range ratio response riser shear shown shows significant soil static stiffness strength stress structure surface Table Technology tension tower turbine vane vessel wave weight wire