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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
and Multiframe


Modeller provides fast, flexible and intuitive modelling of all types of hulls, superstructures and appendages. An unlimited number of trimmed NURB surfaces can be used to model any vessel from yachts to workboats to the largest ships.


3D hull modelling

The core of the MAXSURF range, the Modeller design module provides naval architects with the design tools necessary to create optimised hull forms quickly, accurately and with limited training time. Any number of NURB surfaces can be joined, trimmed and manipulated to create a complete model ready for hydrostatic and performance analysis or construction detailing.

A range of commands provide direct interactive manipulation of the surface shape by mouse or keyboard. Control points can be dragged with the mouse, adjusted numerically, or manipulated with a range of fairing commands. Modeller also provides capabilities to automatically transform hull shapes to match desired dimensions and hydrostatic properties.

Fair and accurate surfaces are critical for optimal vessel performance and ease of construction. Modeller provides a comprehensive range of tools for evaluating curvature of the entire surface, as well as curvature along a particular surface contour such as a waterline or diagonal. Curvature displays are automatically and interactively updated as you modify the surface.

All MAXSURF designs are stored in a common 3D design file which is accessed directly by other modules for analysis, construction and performance prediction. Changes made in Modeller will automatically flow through when the design is opened in other modules. The design database files are extremely compact, making them ideal for transmission to designers or builders via email.

Modeller Advantages

Fast to learn and easy to master graphical user interface

• Model complex hull geometry with trimmed surfaces

• Visualise hull shape changes with dynamic updating of all views

• Match required hull parameters using parametric transformation

• Extract key design data via hull lines, tables of offsets, hydrostatic properties or curve of areas

Modeller: Model up to 20 Surfaces

Modeller Advanced: Model an unlimited number of surfaces

The interactive graphical environment in Modeller complies with Microsoft Windows standards and allows you to very quickly learn and master the many design tools provided. Multiple windows can be used to view and change the model as well as provide a tabular view of design data. Other windows provide on-the-fly checks of curve of areas, upright hydrostatic calculations and tables of offsets.

Data exchange is a key requirement in the modern design office and Modeller supports a wide range of industry standard formats. Copy and paste of numerical tables to and from Microsoft Excel allows for custom calculations and formatting. Copy and paste of all graphical views also helps you create presentation materials and reports. Import and export of industry standard DXF and IGES files, as well as reading and writing of Rhino files allows you to seamlessly exchange point, line or surface data with other systems.

Modeller's unique surface trimming capabilities allow you to model complex surface edges while maintaining fairness throughout the rest of the hull. An interactive display of surface/surface intersections lets you create the shapes you require even with complex configurations such as curved transoms, stepped sheerlines and appendages or bow thrusters. Surface trimming is automatically updated as you adjust the surfaces in the design.

Modeller provides all the hull, appendage and superstructure modelling capabilities you require. Modeller Advanced allows modelling an unlimited number of surfaces. For users with a limited budget, the basic Modeller version allows up to 20 surfaces to be modelled.

Modeller Features

• Unlimited number of NURB surfaces & curves

• Dynamic surface trimming

• Developable surfaces

• Parametric Transformation

• Proportional model resizing

• Surface/Surface intersections

• Dynamic surface contouring

• Shaded surface curvature display

• Contour curvature display

• Dynamic 3D rotation

• Interactive control point movement

• Bonding, grouping and masking

• Multiple dynamic views

• Edit graphically or numerically

• Merge multiple models

• Surface areas and upright hydrostatics

• Interactive curve of areas

• DXF and IGES import and export

• Read and write Rhino files

• Copy and paste to and from Excel

MAXSURF CONNECT Edition v21:10 Enhancements

MAXSURF Modeler - enhanced NURB surface meshing tools for CFD and FE analysis

Produce coherent surface meshes for CFD and FE analysis with the comprehensive range of surface meshing tools in MAXSURF Modeler. There are three new features which assist the production of coherent surface meshes for CFD and FE analysis:

• Welding to ensure node continuity where meshes intersect;

• Joining to ensure node continuity where meshes touch along a common edge; and

• Remeshing selected areas of a mesh at a different triangle density

The mesh welding and joining features are particularly useful for producing a coherent surface mesh when the model is made up of several independent NURBS surfaces. In the image below, the deck mesh (dark green) shares a common edge with the main hull mesh (light green), both surfaces share common edges with the transom mesh (teal). The new mesh “joining” feature has been used to ensure that the meshes share common nodes along their common boundaries; thus ensuring, a watertight mesh for CFD analysis. The internal bulkhead mesh (grey) has been “welded” to the deck and hull meshes ensuring node continuity which would be required for a FEA model, for example.

MAXSURF Modeler also contains comprehensive meshing tools for generating CFD meshes on the exterior hull surface. On-going development will result in additional capability.

MAXSURF CONNECT Edition v21:11 Minor Enhancements

MAXSURF CONNECT Edition v21:12 Enhancements

MAXSURF Modeler - most NURB surface manipulation commands have now been implemented for Trimesh surfaces

Resize, move, rotate, flip (mirror), duplicate, align and offset mesh surfaces

Several enhancements have been made to the Modeler COM Automation interface (and also for Stability

Intermediate Damage Case

Probabilistic Intermediate Damage Case

Key points Intermediate Damage Case

Criteria Intermediate Damage Case

Equilibrium stability criteria (and Key Point results) evaluated at each wave phase

DXF export Stability COM Automation Interface

MAXSURF CONNECT Edition v21:14 Enhancements

Release 21.14 October 2018

Stability Criteria EU Inland Waterways ES-TRIN 2017 - modifications made to existing criteria

Trimesh of Frames, Bulkheads, Longitudinals

Same Trimesh model in MAXSURF and Rhino

Improved Trimesh bonding

MAXSURF CONNECT Edition v21:13 Enhancements

Combined NURBS and Trimesh models

One of the most significant changes that has been made in this release has been better support for models using both NURBS surfaces and trimeshes. There are two common workflows where this is likely to occur:

Firstly importing existing vessel geometry from point data resulting in a Trimesh for the main hull but with modified appendages or complex tanks modeled with NURBS surfaces.

Secondly a NURBS model with one or more analysis trimeshes (particularly for panel method seakeeping analysis in Motions).

Auto Generate Lines Plans from Nurbs Model

Auto Generate Lines Plans from Stability Model

Combined mesh and nurbs surfaces

Combined mesh and nurbs surfaces

Combined mesh and nurbs surfaces

For analysis purposes