30 November 2008

[yim036] DMV_Ch.7_Dynamic Effects

Dynamics Effects are known as vertical and rolling effect associated with motion of heave, pitch and roll.
The study of dynamic effects involved mainly the following investigations:
1. Frequency of occurrence of deck wetness and slamming
2. Magnitude of impact pressure caused by slamming
3. Response of ship bottom plating to slam impact
4. Hull response (stress and acceleration) due to slamming
5. freeboard and deck wetness
6. severity of green water on the deck
7. Determination of added resistance in a seaway operation

Content
7.1 General
7.2 Vertical Motion
Vertical Velocity
Vertical Acceleration
7.3 Relative Bow Motion
Phase Difference between Wave Motion and Bow Motion
Relative Bow Velocity (in Head Seas)
Relative Bow Motion in an irregular seaway
7.4 Deck Wetness and Slamming
Deck Wetness
Effect of Statistical Swell-up of Water at the bow
Effect of Dynamic Swell-up at the bow
Probability of Deck Wetness
Slamming
Basic Theory
Probability of Slamming
Interval between slam impacts
7.5 Vertical and Rolling Effect
Vertical Effects
Rolling Effect
7.6 Seasickness
7.7 Stability in Waves

Dynamics of Marine Vehicles
By Rameswar Bhattacharyya
Published by Wiley, 1978
ISBN 0471072060, 9780471072060

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