Dynamic Lift Analysis

Dynamic Lift Analysis

The lift dynamic model will assess the dynamic behaviour of the lift system during the various stages of the lift and will determine limiting wave conditions for the operation based on a set of operational limits. Furthermore the model will produce workability numbers based on the wave scatter diagram for the season and location of the operation.

The dynamic lift model will include the following stages of the heavy lift:

  1. Free-Floating No connection between cargo barge and HLV
  2. Pre-Tension Barge and HLV are connected with taut rigging with 50% hookload
  3. Free-Hanging Lift is suspending in the crane above the free moving cargo barge
  4. Pre-setdown Lift is suspending in the crane above the setdown points
  5. Set-Down Lift is set on the jacket or on the bottom slings are still taut with 50% hookload

The Analysis procedures have been programmed in MOSES by Orca Offshore. The Dynamic Lift Analysis programs have been used for many projects and have proven to be relaible and accurate.

Below you can see a video on an actual lift in a swel seastate and the simulation performed, showing the need for a dynamic lift analysis.

Dynamic Lift Analysis

The latest projects done by Orca Offshore.

DeltaCat Design for WTSU-010

DeltaCat Design for WTSU-010

Date: June 2020
Client: Offshore Wind Logistics b.v.
Product: Vessel Design

SPT Offshore – Dynamic Lift analysis

SPT Offshore – Dynamic Lift analysis

Date: Feb 2019
Client: SPT Offshore
Product: Lift Analysis

OWF Norther Offshore Wind Farm – Trencher launch and recovery

OWF Norther Offshore Wind Farm – Trencher launch and recovery

Date: Nov 2018
Client: DHLC and van Oord
Product: Lift Analysis

Lift Analysis – OWF Deutsch Bucht – Gripper Frame Seajack Scylla

Lift Analysis – OWF Deutsch Bucht – Gripper Frame Seajack Scylla

Date: June 2018
Client: Eager.One
Product: Lift Analysis