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Introduction to Paramarine:Hull Generation

Advanced Hullform Generation within Paramarine

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Hull Generator:

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Contents of this presentation

• Key Features

• Requirements

• Overview

• Hullform Synthesis

• Hullform Surface Analysis

• Examples

© Copyright QinetiQ Limited 2009

Hull Generator:

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Contents of this presentation

• Key Features

• Requirements

• Overview

• Hullform Synthesis

• Hullform Surface Analysis

• Examples

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Hull Generator: Key Features

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• Rapid and accurate surface generation

• Flexibility to model complex free-form geometry

• Intuitive Graphical User Interface

• Ability to create parametric surfaces & hull forms

• Quickly adjustable

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Hull Generator:

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Contents of this presentation

• Key Features

• Requirements

• Overview

• Hullform Synthesis

• Hullform Surface Analysis

• Examples

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Hull Generator: Requirements

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• User Requirements- Ease of use- Flexibility- Robust- Parametric- Importing Images

• Software Requirements- Surface checks- Degeneracy- Construction of sheet or solid bodies- Knot vector, control point weights- Paramarine object design

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Hull Generator: Example Designs

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Yacht hull and upperworks Tanker hull

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Hull Generator:

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Contents of this presentation

• Key Features

• Requirements

• Overview

• Hullform Synthesis

• Hullform Surface Analysis

• Examples

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• Define shape driving curves

Hull Generator:

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• Define shape driving curves• Insert curves as necessary to provide accurate definition of surface

Hull Generator:

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• Define shape driving curves• Insert curves as necessary to provide accurate definition of surface• A surface can then be created

Hull Generator:

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• Define shape driving curves• Insert curves as necessary to provide accurate definition of surface• A surface can then be created• And ultimately a solid

Hull Generator:

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Hull Generator:

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Contents of this presentation

• Key Features

• Requirements

• Overview

• Hullform Synthesis

• Hullform Surface Analysis

• Examples

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Hull Generator: XT Curves Constraints

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bead

copy

interpolateinterpolate

knuckleinterpolatestraight

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Hull Generator: XT Surfaces – Subdivision

Regular Subdivision Irregular Subdivision

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Hull Generator:

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Contents of this presentation

• Key Features

• Requirements

• Overview

• Hullform Synthesis

• Hullform Surface Analysis

• Examples

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Hull Generator: Shape Analysis – Curvature Lines

Curvature Lines for Section Curves

Curvature Lines for an individual XT Curve

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Hull Generator:

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Contents of this presentation

• Key Features

• Requirements

• Overview

• Hullform Synthesis

• Hullform Surface Analysis

• Examples

© Copyright QinetiQ Limited 2009

Hull Generator: Examples

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Hull Generator: Parametric Concept Design - Surface Ship

Initial shape of a parametric hull

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Hull Generator: Parametric Concept Design - Surface Ship

The same hull after modifying transom width, flare, and parallel midbody

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Hull Generator: Parametric Concept Design - Submarine

• Complex Curvature

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Hull Generator: Parametric Concept Design - Submarine

• Complex Curvature

• Parametrically adjustable

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Hull Generator: Parametric Concept Design - Submarine

• Complex Curvature

• Parametrically adjustable

• High Quality Solids

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Hull Generator: Parametric Concept Design - Submarine

• Complex Curvature

• Parametrically adjustable

• High Quality Solids

• High Accuracy in Analysis

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Hull Generator: Parametric Concept Design - Submarine

• Complex Curvature

• Parametrically adjustable

• High Quality Solids

• High Accuracy in Analysis

• Quickly adjustable

• Design Change ImpactAssessment

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Hull Generator: Recreation of existing designs

Offset Data Bitmaps located in 3D space

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Texture maps

• Import pictures into graphics pane

• Scale, rotate or shear

• Set picture datum

• Pictures are orthogonal on graphics pane

• Sketch around pictures and save hours © Earthrace

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Earthrace Case Study

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Analysed in HYDRODYNA (Hydrodynamic software) by Frazer-Nash Consultancy

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Hull Generator: Is this the end of the Story?

• Solid Body hull forms can be analysed using the full extent of Paramarine naval architecture modules

• Hull forms can be exported to external programs for further analysis, HYDRODYNA/CFD, Abaqus CAE, Fredyn, FORAN etc

Hull FormGeneration

Stability

and

Hydrostatics

StructuralAnalysis

Modelling

Powering

Parasolid

Design forProduction

Early StageDesign

Manoe-uvring

RadarCross

Section

Blast & Fragmentation

Endurance

Seakeep-ing

Ultimate Strength

PressureHull

Strength

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© Copyright QinetiQ Limited 2009

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Thank you for watching.

If you would like further information please contact grc@grc-ltd.co.uk