Virtual Ship - presentazione Roma slide.pdf · Virtual Ship - Ambiente integrato ed interoperabile...

Virtual Ship - Ambiente integrato ed interoperabile per la simulazione navale

Ambiente integrato ed interoperabile per la simulazione navale

Aldo ZiniCetena S.p.A.

Virtual ShipVirtual Ship


Simulation in Ship DesignSimulation in Ship Design


Why using simulation in Ship DesignWhy using simulation in Ship Design

To demonstrate feasibility of design choices

To demonstrate To demonstrate feasibility of design feasibility of design choiceschoices

To verify operative requirements in dangerous/extreme situations

To verify operative To verify operative requirements in requirements in dangerous/extreme dangerous/extreme situationssituations

To predict system performancein operational scenariosTo predict system performanceTo predict system performancein operational scenariosin operational scenarios

Sea Trials

Hydrodynamics

Information Technology

Virtual Reality

Materials

Simulation Analysis

Structures

CAD Models

Ergonomics User requirements

CONCEPT: Conceive, Design, Test, Train and Operate the Ship on Computer before Cutting Metal

CONCEPT: Conceive, Design, Test, Train and Operate the Ship on CONCEPT: Conceive, Design, Test, Train and Operate the Ship on Computer before Cutting MetalComputer before Cutting Metal


More complexity

More More complexitycomplexity

Multiple Entities

Multiple Multiple EntitiesEntities

Real-time visualizationRealReal--time time

visualizationvisualization

Interactive Behaviour

(man in the loop)

Interactive Interactive Behaviour Behaviour

(man in the loop)(man in the loop)Environment interaction

Environment Environment interactioninteraction



What are Virtual Ships?Suites of simulations depicting the behaviour of real ships for many purposes including:

• Predicting operational performance• Demonstrating requirements are being met• Testing technical integration of different platforms and

sub-systems – virtual trials• Predicting safe operating envelopes – virtual trials • Evaluating problems not identified by traditional analyses • Further evaluating and comparing design alternatives• Setting and testing requirements for training systems



Why use Virtual Ships?• Offers ‘virtual prototypes’ to help reduce / avoid costs of

the Class• Allows operators to evaluate requirements and designs• Allows operators to examine safe operating envelopes

during design and extend envelopes verified during sea trials

• Reduces size and cost of sea trials• Provides base technology for training systems



VirtualVirtual ShipShip IntegratedIntegratedArchitectureArchitecture

Italian NavyItalian Navy


AimTo develop three simulation environments representing the following operations:

Replenishment At SeaCraft landing in the internal dock of a LPD ShipVTOL vehicles operations on aircraft carrier

VISIR VISIR –– Virtual Ship Integrated ArchitectureVirtual Ship Integrated Architecture


General Characteristics

HLA basedVS-FOMInteractiveReal-Time visualizationDetailed Physics



• To simulate Replenishment operations in open seas with different meteorological conditions

• To verify operation constraints (ships speed, distance…)

• To analyse different RAS devices in term of position, operative behaviour, efficiency etc.

Replenishment at Sea



Two ship cooperating

Operational Verifications

Port traffic

Previous experiencePrevious experience



Environment

SEA AIR

Supply Ship

Motion Manoeuvrability

Interface

RAOs

Heading, speed

Receiving Ship


Interface

RAOs

Heading, speed

Interactions Module

Supply

Interaction Forces

Supply Position

Receiving Position

Visualization Module

RAS Pipe Dynamical Model

Pipe geometry Feasibility

Flag

Wave Heading, Sea State

Wind Direction, Wind Speed

Hull Geometry

Hull Geometry

ReceivingInteraction

Forces

RAS Process Model

ShipFederate

ShipShipFederateFederate

ShipFederate


EnvironmentFederate

EnvironmentEnvironmentFederateFederate

Interaction Federate

Interaction Interaction FederateFederate

VisualizationFederate

VisualizationVisualizationFederateFederate

RAS RAS EquipmentEquipment FederateFederate

Conceptual Conceptual ModelModel



Run Time Infrastructure

SupplyShip

ReceivingShip

InteractionsEnvironment Visualization

RAS Equipment

RAS FederationRAS Federation



Landing Craft operations in a LPD Ship

• To simulate LCU behaviour inside the internal dock

• To evaluate feasibility of tank loading/unloading on the LCU

• To verify operation constraints (LPD ships speed, LCU characteristics…)

• To analyse different internal dock deck configurations



Ingress of the small boat into the wet deck of the amphibious ship for collision detection analysis.


Behaviour of the landing craft approaching amphibious ship



Environment

SEA AIR

LPD Ship


Interface

RAOs

Heading, speed

LCU Craft


Interface

RAOs

Heading, speed

Internal Sea

Model LPD 6 DOFVelocity

Acceleration

Internal Sea Data


Feasibility Flag



Hull Geometry

Hull Geometry

Collision Detection Module

Manoeuvre Feasibility Module

Forces CalculationContact Forces

Contact Point

LCU 6 DOFVelocity

Acceleration

ShipFederate

ShipShipFederateFederate LCU

FederateLCU LCU

FederateFederate

EnvironmentFederate


Internal SeaFederate

InternalInternal SeaSeaFederateFederate

Contact FederateContact Contact FederateFederate

FeasibilityFederate

FeasibilityFeasibilityFederateFederate







VirtualShip

VirtualLCU Feasibility

Contact ForcesInternal SeaEnvironment

Visualization

LPD FederationLPD Federation



VTOL operations on ship

• To simulate take-off and landing operations

• To evaluate feasibility of operations in different environmental conditions

• To take into account ship manoeuvring behaviour during operation



Helicopter take-off and landing operation

of on a frigate


Interaction between aircraft simulator and a ship

simulation in a geographically distributed HLA federation.



Environment

SEA AIR

Virtual Ship


Interface

RAOs

Heading, speed

Virtual VTOL

Motion Path

specification

VTOLData

VTOL Path

Air Wake Module

ShipPosition

VTOL Interaction

Forces




Hull Geometry

VTOL Geometry & Parameters

VTOL Position

Interaction Forces Calculation Module

Manoeuvre

Feasibility ModuleFeasibility Flag

ShipFederate


HeloFederate

HeloHeloFederateFederate

EnvironmentFederate


Air WakeFederateAir Air WakeWakeFederateFederate



FeasibilityFederate

FeasibilityFeasibilityFederateFederate





Ship VTOL

FeasibilityEnvironment Visualization

Air Wake

VTOL FederationVTOL Federation



Early Prototype

• Ship motion federate • Simplified Ship-Ship interaction module• Simplified Correlation between external and Internal sea in LPD

scenario• Simplified air-wake module• Visualization federate• Federation based on VS-FOM


MainMain characteristicscharacteristics

ScheduleSchedule• Delivery within the end of the year


Possible International Cooperationsunder the Virtual Ship MoU framework

• SHOLS with UK• RAS with Canada• LPD with Netherland



Future VisionReuseReuse of of SimulationSimulation componentscomponents

SimulationSimulation asas connection connection technologytechnology amongamong differentdifferentshipship life life phasesphases

DesignDesign TestTest

TrainingTrainingOperateOperate


Future Vision

IntegratedIntegrated Test Test BedBed

Ship ControlDefenseSystems

Command &Control

Signatures

Ship Motions Damagepropagation Sensors

Rescuesystems

External entity A SimulationExecutionManager

HLA HLA RunRun Time Time InfrastructureInfrastructure

Real TimeVisualizationEnvironment Threat

Communications

External entity B

Virtual Ship 2

Virtual Ship 1 External entity A

SimulationExecutionManager

HLA HLA RunRun Time Time InfrastructureInfrastructure

Real TimeVisualizationEnvironment Threat

Virtual Ship n…… External entity B External entity B……

Common Virtual RangeCommon Virtual Range


Future challenges

•Integration of real systems inside the federation

•Integration of other entities simulators

•Interaction among different experts

•Scalability: use in different design/operation steps

•Human in the loop and ergonomic assessment

•Distributed WAN connections

•Security issues


Conclusions• Simulation is generally used

• Interoperability and reuse of existing simulations con be achieved using HLA

• HLA is a promising simulation framework

• The final users is not yet enough confident in the results as should be

• Further standardization needed for broader reuse and integrationamong different organizations

• Reuse in different life cycle phases (training…)• Repository of reusable federates• International interest

At least we are in good company…

Virtual Ship - presentazione Roma slide.pdf · Virtual Ship - Ambiente integrato ed interoperabile...

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