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76750 Ship Hydrodynamics 2
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Danish title: Skibshydrodynamik 2
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Language: Danish
Credit points: 5 |
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| Type: | Open University
Language: Danish |
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Prerequisite: 76720
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Recommended semester: 6th or 7th semester
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Examination: Approval of compulsory activities is a prerequisite for taking part in the exam. Written exam (13-scale)
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Department: Department of Naval Architecture and Offshore Engineering
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Aim: - calculate particle orbits, local pressure and energy in a linear wave.
- describe a sea state using a standard wave energy spectrum.
- calculate prognosis for wave heights in steady and nonsteady conditions.
- calculate prognosis for linear response of ships using wave energy spectrum
and transfer function in steady and nonsteady conditions.
- interpret results from model tests in waves and from computerprogams based on strip theory.
- calculate natural frequencies for ship hulls and for plates and panels.
- evaluate risk of vibrations on ships.
- know about inconveniences from vibrations.
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Contents: The velocity potential, principle of superposition, Pierson-Moskowitz and JONSWAP wave spectrum, Rayleigh - and Weibull probability density function, strip theory, natural frequencies, hull vibration, local vibrations, added mass, source of vibrations, criteria on acceptable vibrations.
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