Towards an effective interoperability of modelsEugenio Brusa, Sergio Chiesa, Ambra Calà, Francesco...

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Dipartimento di Meccanica

CIISE 2014 – Rome, Italy – E. Brusa, A. Calà – Politecnico di Torino

CONFERENZA INCOSE ITALIA SU SYSTEMS ENGINEERING CIISE 2014 – Roma, 24 – 25 Novembre 2014

Eugenio Brusa, Sergio Chiesa, Ambra Calà, Francesco De Vita, Davide Ferretto Dept. Mechanical & Aerospace Engineering Politecnico di Torino, Italy

Towards an effective interoperability of models within the ‘System Engineering’

applied to aeronautics

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Introduction

Physical phenomena are often described by numerical models.

Differential equations often allow to predict the system dynamic

behavior, however they are somehow inadequate to perform a

trade-off of architectures or to define the discrete control

strategy of some components and parts.

System Engineering provides some suitable tool for an effective

description of system functional behavior and architecture.

For a full performance analysis it is required an hybrid

simulation environment that allow the heterogeneous modeling

of the system behavior, which might resort to several

components and tools.

An industrial example is used to show some challenging issues

of inter-operability of tools and models, being a de-icing system for a regional aircraft.

CIISE 2014 - Rome, Italy - E. Brusa, S. Chiesa, A. Calà, F. De Vita, D. Ferretto - Politecnico di Torino

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Goodrich de-icing system


Inflatable boots:

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Model-Based Systems Engineering


Physical modeling

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Requirements Analysis


Stakeholders and use cases

Requirements

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Behavior Analysis

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System interfaces

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Functional model detailed description of the system

architecture and of its states-based

behavior

Physical model dynamic behavior in the continuous-time

domain


System architecture

Dynamic behavior

Full performance

analysis

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Goodrich system layout

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Physical model in Simulink

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There are many different

simulation tools

No standards are available

right now for co-simulation

between tools

Difficulty to perform analysis

at the model level is found

Tool-chain integration is still

expensive


The challenge of interoperability

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Functional Mock-up Interface (FMI)

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Tool

Solver

FMU

Model

Tool

FMU

Model

Solver

Over 35 tools https://www.fmi-standard.org/tools


FMI for Model Exchange:

FMI for Co-Simulation:

FMI approach

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SysML hybrid simulation

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SysML behavioral blocks – ITI SimulationX

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In the test case the functional behavior is easily analyzed

through the SysML, while the dynamic performance can be

investigated only through a physical model.

The heterogeneous simulation environments are therefore

growing up as a key feature of the Model-Based System

Engineering.

Looking for an interoperability standard is currently a hot

topic of the research activity.

One of the most promising standard currently available and

implemented by some tools developers is the ‘Functional

Mock-up Interface’ (FMI).

A good inter – operability will definitely link the world of

functional and operational design of systems thus allowing a

better assessment of cost and time to market.


Conclusions

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Eugenio Brusa, Sergio Chiesa, Ambra Calà, Francesco De Vita, Davide Ferretto

Dept. Mechanical & Aerospace Engineering

Politecnico di Torino, Italy

{eugenio.brusa, ambra.cala, francesco.devita, davide.ferretto}@polito.it

Thank You for Your kind attention !


Towards an effective interoperability of modelsEugenio Brusa, Sergio Chiesa, Ambra Calà, Francesco...

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