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MAXSURF

Integrated Naval Architecture Software
             for all Types of Vessels

Island Computer Systems Ltd are an Authorised Bentley Gold Channel Partner - able to provide the full range of Bentley infrastructure products including MicroStation and PowerDraft as well as the marine MAXSURF products:      Modeler
      Fitting
      VPP
      Resistance
      Motions
   Stability
   Structure
and Multiframe

EUROPE

MAXSURF Stability - in more detail

Intact and Damaged Hydrostatics and Stability

Detailed Modeling

Stability for Intact and Damaged Vessels

Compartment modeling

Automatic trimming to hull envelope

Simple definition from 6 planes

Complex shapes using linked parts

Complex shapes using NURBS surfaces

Default fluid

Sounding pipes


Loadcases

Loadcases

Loadgroups

Mass distribution

Formatting

Fluids

Cross-flooding arrangements

Pair of connected rooms

Locations

Direction of flow

Pipe dimensions

Key points

Down-flooding

Water on Deck

Stability Criteria

Usage – intact or damage

Bulkheads and Modulus

Margin line and deck edge

Bulkheads:
Floodable length curve

Modulus:
Longitudinal Strength allowable Shear Force and Bending Moment limits

Automatic calculation

Manual editing, snapping to hull

Stability criteria

Hydrostatic Analysis

Inputs


Results


GZ curve (large angle stability)

Inputs


Results

Limiting KG (min. GM)

Inputs

Results


Probabilistic Damage

Inputs

Results

Longitudinal Strength

Inputs

Results

Equilibrium

Inputs

Results

Upright Hydrostatics

Floodable Length

Inputs

Optional additional criteria



Enhanced intermediate stages of flooding functionality capability.

MARPOL

Analysis

Inputs

Results

Cross curves of stability (KN)

Inputs

Results

Cross-flooding MSC.362(92)

Inputs

Results

Specified Condition

Inputs

Results

Useful for inclining experiment analysis

Stability: Time for cross-flooding analysis

Verify compliance with IMO Resolution MSC.362(92) by calculating time to cross-flood

Cross-flooding MSC.362(92)

Include the effect of spilling liquid cargo or ballast from tanks during stability analyses

Use key-points to specify single or multiple outflow points from tanks

View remaining fluid in tanks at each phase of the analysis.

Customized Analysis with Automation

Environment Options

Damage and Water On Deck (Stockholm)

Intact and Damage


Partial flooding


Spilling


Water On Deck

Stability Criteria

Parent


Predefined customized criteria


User-defined customized criteria


Comprehensive reporting of intermediate calculations


Reporting

MS Word or RTF


Customizable reporting based on MS Word templates


Report generation using existing results database


Automation for fully customizable reports

Batch analysis

Saving and reloading results from SqliteDB

Results may be stored in a SQlite database as they are created. Allowing:


Review of previous calculations


Generation of reports from selected previously calculated results (without the need to re-run the analysis)

MAXSURF Stability – enhanced SOLAS 2009 probabilistic damage analysis

Perform probabilistic damage analysis with enhanced intermediate stages of flooding functionality capability.

Improvements have been made to the way that intermediate stages of flooding are dealt with in MAXSURF Stability's probabilistic damage analysis.

Any number of intermediate stages with partial flooding levels can be specified for each damage scenario (in addition to the final stage which is automatically generated). This can be used to simulate partial cross-flooding as well as intermediate, partial flooding when instantaneous flooding of the whole space cannot be assumed. The damage scenarios are automatically combined depending on the number of adjacent zones to be investigated as well as the different vertical and transverse extents of damage that must be considered. The intermediate survivability factors for all intermediate cases are assessed automatically and the worst condition automatically selected.

Any number of intermediate stages with partial flooding levels can be specified for each damage scenario (in addition to the final stage which is automatically generated). This can be used to simulate partial cross-flooding as well as intermediate, partial flooding when instantaneous flooding of the whole space cannot be assumed. The damage scenarios are automatically combined depending on the number of adjacent zones to be investigated as well as the different vertical and transverse extents of damage that must be considered. The intermediate survivability factors for all intermediate cases are assessed automatically and the worst condition automatically selected.

C11 Container Ship Hullform Model in Maxsurf

Example of Customized Analysis

with Automation

By University of Strathclyde, Glasgow

with involvement of

Lloyds Register and RINA.

A tool has been developed at the Department of Naval Architecture, Ocean & Marine Engineering at the University of Strathclyde.


It is based on a code written in MS VBA in MS Excel using the automation tools of the Maxsurf suite (Maxsurf

Modeler 2014).


https://strathprints.strath.ac.uk/57360/1/Liu_etal_IMDC_2015_Prevention_of_parametric_rolling_through_multi_objective_optimisation.pdf


This project was funded by Lloyd’s Register. All internal information relevant to second generation of intact stability was kindly provided by Royal Institution of Naval Architects. The support from Lloyd’s Register and Royal Institution of Naval Architects was gratefully acknowledged.