This article will guide you on how to add an Anchor handling vessel (AHV) to your Construction case. 

Adding an AHV

1. Open your case and go to  Build → Logistics → +Add

2. You will then have a selection of vessels that you can add. Click on Anchor handling vessel

3.  When you select the vessel type you want to add you will be directed to the selection of that vessel in your input library. Click on the instance you want to add.

4. Complete the necessary information on how the vessel should be used. In this case, the number of vessels you will need, shift, homeport, etc.

  • Name: The name of the Vessel
  • Number of units to add: How many AHVs you will add
  • Port: it is mandatory to add the port. If you have not added a port to your case yet, you will not be able to add the vessel.
  • Lead time: Time required to prepare the vessel prior to deployment.
  • Availability: The daily availability of the vessel.
  • Alter vessels settings: Here you can define if the shift time is constant or if it alters. 
    • by date and the settings will repeat annually: This option lets you assign the vessel to only be available within the period you have selected. In the example below, the vessel will be available from January 1st to April 5th each year.
    • periodically and specify durations by number of days: This option lets you assign the number of the days the vessel will be available, at which point, it will be unavailable in the same number of days. In the example below, the vessel will work for 14 days, then have 14 days off, before it starts it's rotation again for 14 days. 
  • Port: It is mandatory to add the port. If you have not added a port to your case yet, you will not be able to add the vessel

  5. Click on  Next and then Add

Editing an AHV

1. Go to your AHV and hover your mouse over it and click on it.

2. Add or edit all necessary information. Sections available are:

3. See more detail on each section: 

Members

If you click on 'Anchor handling vessel 1' you will be able to make adjustments to the information you added when inserting the vessel. This is a shift, availability, port, etc.

Parameters

Comments can be added here.

Processes

Read this article for more information. 

Fuel Consumption 

  • Fuel unit: Choose between litre or tonne 
  • Fuel consumption in transit (loaded): The fuel consumption when the vessel is in transit with the equipment 
  • Fuel consumption in transit (empty): The fuel consumption when the vessel is in transit without the equipment
  • Fuel consumption when cable laying/burial: The fuel consumption when the vessel is doing those activities
  • Fuel consumption disconnect/hook up: The fuel consumption when the vessel is disconnect/hook up
  • Fuel consumption while installing mooring line: The fuel consumption when the vessel is installing a mooring line
  • Fuel consumption while installing mooring anchor: The fuel consumption when the vessel is installing a mooring anchor
  • Fuel consumption while towing: The fuel consumption when the vessel is towing the equipment
Cost

In this section, you can define the cost involved with the vessel. 

1. Define the currency 

2. Add any cost you want to report on. Some examples of the cost you can manage are: 

  • Day rate
  • Fuel Cost: The cost is based on the fuel unit, so if the unit is set to litre, the fuel cost will be per litre; if the fuel unit is set to tonne, then the fuel cost will be per tonne. 
  • Mobilisation cost 
  • Port fee

Data Time Series

You can also add a cost time series, so your cost differentiates by year. This is done by clicking on the  Open Time Data Series button.

Set your year range starting with 1 and how many years you want to simulate and click  Update- the actual year is derived from the operational start year on the assets (if your operational start year is set to 2021-xx-xx, year 1 is 2021, year 2 is 2022 etc.), to which you can add the cost per year.

Capacity

You can bundle multiple work orders on the same AHV using the Capacity tab.

Set the capacity of the vessel (i.e., how many tasks it can carry) and the minimum capacity. Minimum used capacity controls how much of the capacity on this transport that needs to be filled before it can leave the base. The minimum waiting time set on tasks will override this parameter. 

4. Click on Save when done