Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 4American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 91
... Frequency The dominant frequency of the excitation force was estimated by a spectral analysis of the force time - series . In all cases , the spectral peak was sharp and predominant with the maximum energy was cen- tered at this ...
... Frequency The dominant frequency of the excitation force was estimated by a spectral analysis of the force time - series . In all cases , the spectral peak was sharp and predominant with the maximum energy was cen- tered at this ...
Page 94
... frequency of the structure , indicating the coupled behaviour of ice forces to structural charac- teristics . Ice crushing frequency showed a " locking - in " at the natural frequency of the structure over a wide range of loading rates ...
... frequency of the structure , indicating the coupled behaviour of ice forces to structural charac- teristics . Ice crushing frequency showed a " locking - in " at the natural frequency of the structure over a wide range of loading rates ...
Page 268
... Frequency The Figure 5 shows the effect of frequency on the stress - strain behavior . The values above each curve indicate the period of the load cycle in seconds . axial stress in these experiments varied between ± 0.3 MPa . The first ...
... Frequency The Figure 5 shows the effect of frequency on the stress - strain behavior . The values above each curve indicate the period of the load cycle in seconds . axial stress in these experiments varied between ± 0.3 MPa . The first ...
Contents
OFFSHORE TECHNOLOGY PART | 3 |
ARCTIC STRUCTURES AND OPERATIONS II | 31 |
ICE STRUCTURE INTERACTION I | 75 |
Copyright | |
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analysis angle average Barents Sea beam behavior bergy bit Bohai Sea boundary conditions calculated Canada coefficient computed crack creep buckling crushing deflection deformation density displacement Dow's Lake drilling dynamic effect elastic energy equation ESARC experimental finite element finite element analysis flexural failure floating ice sheet floe fluid foundation fracture toughness freezing frequency grain heat Hobson's Choice horizontal ice cover ice forces ice island ice load ice shedding ice sheet ice temperature ice thickness iceberg icebreaking impact indentation indentor initial interaction locations maximum measured Mechanics method mode modulus Northumberland Strait notch nucleation numerical obtained Offshore parameters permafrost plane platform pore porosity predicted pressure Public Works Canada ratio response ridge saline sample sea ice SED criterion sensors shown in Figure Simulated Sinha soil solution specimens strain rate strength structure tests values vertical vibration Young's modulus