Can a Ship Experience Maximum Roll and Heave Accelerations Simultaneously?

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A ship can experience maximum roll and heave accelerations simultaneously, particularly when quartering the seas. This angle allows for both types of motion to peak around the same time, which is crucial for assessing loading conditions for equipment. However, heave accelerations are generally higher when seas approach directly from the bow, while roll accelerations peak with seas hitting the beam. Quartering seas tend to be gentler on the vessel compared to head-on or beam seas. Understanding these dynamics is essential for safe equipment operation on ships.
richard.li
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Hi all,
I have a question regarding to the ship motion at sea. Can a ship experience maximum roll acceleration and maximum heave acceleration at the same time? I need this answer to determine the worst loading conditions for my equipment on the ship. Thanks.
 
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There will be an angle of quartering the seas where roll and heave should maximize at bout the same time. However, I think heave will be stil higher with seas directly on the bow and roll with seas on the beam. Quartering the seas is usually gentlest on the vessel.
 

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