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Seakeeping Analysis J. Juncher Jensen, A. Sm rup Olsen, DTU

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Seakeeping Analysis J. Juncher Jensen, A. Sm rup Olsen, DTU

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    1. Seakeeping Analysis J. Juncher Jensen, A. Smærup Olsen, DTU Basically as the wave bending moment analysis. However only linear motions are considered. Length, breadth, draught, block coefficient, waterplane area coefficient, GMT or TN Non-linear roll damping must be included as a fraction of critical damping. Fast estimates of the wave induced motions and accelerations. Sensitivity study with main dimensionsBasically as the wave bending moment analysis. However only linear motions are considered. Length, breadth, draught, block coefficient, waterplane area coefficient, GMT or TN Non-linear roll damping must be included as a fraction of critical damping. Fast estimates of the wave induced motions and accelerations. Sensitivity study with main dimensions

    2. Seakeeping Analysis Input to left, out put to the right in this Excel spreadsheet programme. Short-term predictions, only, but long-term easy to implement if needed. Number of slams and number of water on deck at position x during the time period. MSI = motion sickness index (percentage of subjects who vomit within two hours) Depends on the vertical acceleration Most probable = S_Motion*sqrt(2*ln(N))Input to left, out put to the right in this Excel spreadsheet programme. Short-term predictions, only, but long-term easy to implement if needed. Number of slams and number of water on deck at position x during the time period. MSI = motion sickness index (percentage of subjects who vomit within two hours) Depends on the vertical acceleration Most probable = S_Motion*sqrt(2*ln(N))

    3. Seakeeping Analysis Super SeaCat 3. Picture shows the frequency response function for vertical acceleration at FP. Fairly good agreement with model test even for high forward speed. Super SeaCat 3. Picture shows the frequency response function for vertical acceleration at FP. Fairly good agreement with model test even for high forward speed.

    4. Any Questions? Basically as the wave bending moment analysis. However only linear motions are considered. Length, breadth, draught, block coefficient, waterplane area coefficient, GMT or TN Non-linear roll damping must be included as a fraction of critical damping. Fast estimates of the wave induced motions and accelerations. Sensitivity study with main dimensionsBasically as the wave bending moment analysis. However only linear motions are considered. Length, breadth, draught, block coefficient, waterplane area coefficient, GMT or TN Non-linear roll damping must be included as a fraction of critical damping. Fast estimates of the wave induced motions and accelerations. Sensitivity study with main dimensions

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