How Does Active Heave Compensation Technology Function At High Sea?

970

Active heave-compensation (AHC) technology

Offshore cranes and other equipment doing subsea work are provided with AHC systems to ensure precision in high sea states and extreme weather conditions.

The essential function of AHC technology is the ability to land and retrieve subsea installations to and from the seabed with precision and accuracy, while minimising the impact caused by the motion of the vessel.

The principle of AHC technology

The major principle of AHC technology is based on advanced motion sensors that measure the vessel’s heave, pitch and roll and calculate resulting geometrical estimate of heave motion of the point where a lifting wire exits the vessel.

AHC uses complex electro-hydraulic PLC controlled systems to control the movement of the lift wire so that the motion introduced by the crane-tip is damped as much as possible. It enables modern subsea vessels to continue working with loads near the seabed under increasingly adverse weather conditions.

If you have any picture based or text-based challenge that you want to share, email us at [email protected]

Did you subscribe for our daily newsletter?

It’s Free! Click here to Subscribe!

Source: wartsila

LEAVE A REPLY

This site uses Akismet to reduce spam. Learn how your comment data is processed.