SCENARIO

Transcription

SCENARIO

CENTRO DI SUPPORTO E SPERIMENTAZIONE NAVALE
ISTITUTO PER LE TELECOMUNICAZIONI E
L’ELETTRONICA “Giancarlo Vallauri”
Integrated Top-side
Engineering
(A Stakeholder point of view)
Scenario e Prospettive
CV (AN) Vincenzo CARULLI
“Sim & SEA” - CSSN, 8 Giugno 2010
SUMMARY
 INTRODUCTION
 DEFINITIONS
 SCENARIO
PERSPECTIVES
 CONCLUSIONS
 INTRODUCTION
 DEFINITIONS
 SCENARIO
PERSPECTIVES
 CONCLUSIONS
DEFINITIONS
-
THE FRAMEWORK
PRIMARY LIFE CYCLE FUNCTIONS
 INTRODUCTION
 DEFINITIONS
 SCENARIO
 PERSPECTIVES
 CONCLUSIONS
DEFINITIONS
-
THE FRAMEWORK
PRIMARY LIFE CYCLE FUNCTIONS
T&E
M&S
DEFINITIONS
DEVELOPMENT vs M&S (Modeling &Simulations)
(SW INTENSIVE SYSTEM ENGINEERING)
Modelling and simulation (M&S) provides virtual duplication of products and
processes, and represents their behaviour in readily available and operationally valid
environment. A model is a physical, mathematical, or logical representation of a system
entity, phenomenon, or process. A simulation is the implementation of a model over time.
Model Based Systems Engineering (MBSE): Methodology based on processes,
methods, tools to support systems engineering in a “model based”or “model-driven” context
Verification, Validation, and Accreditation (VV&A) : Formal approach to assess
representativeness and establish confidence in the specific model or simulation



Verification: process of determining that a model implementation accurately represents
the developer’s conceptual description and specifications that the model was designed to
Validation: process of determining manner and degree to which a model is an accurate
representation of the real world from the perspective of the intended uses of the model, and
of establishing the level of confidence that should be placed on this assessment.
Accreditation is the formal certification that a model or simulation is acceptable for use
for a specific purpose.
DEFINITIONS
DEVELOPMENT vs M&S (Modeling &Simulations)
(SW INTENSIVE SYSTEM ENGINEERING)
DEFINITIONS
-
VERIFICATION vs T&E (Test & Evaluation)
VERIFICATION
 Process to confirm that Design Synthesis has resulted in a physical architecture that satisfies
system requirements. Activities: Analysis, Inspection, Demonstration & Test
Test and Evaluation (T&E)
 Policies and procedures, that support the Verification process. Aimed to assess technical
performance, specifications, and system maturity to determine whether systems are
operationally effective, suitable, and survivable for intended use.
 Testing is the means by which objective judgements are made regarding the extent to which
the system meets, exceeds, or fails to meet stated objectives.
 Evaluation is the iterative process, to review, analyse, and assess data obtained from testing
and other means, to aid in making systematic decisions.
 T&E purpose is to verify technical performance, operational effectiveness, operational
suitability; and it provides essential information in support of decision making.
DEFINITIONS
-
Test and Evaluation (T&E) Criteria

T&E policy requires independent analysis and tests to verify the system’s
operational effectiveness and suitability.

T&E traditionally is categorized as:



Developmental T&E (DT&E), focuses primarily on technical achievement,
Operational T&E (OT&E), focuses on operational effectiveness and suitability
−
Early Operational Assessments (EOA),
−
Operational Assessment (OA),
−
Initial Operational Test and Evaluation (IOT&E), and
−
Follow-On Operational Test and Evaluation (FOT&E);
Live Fire T&E (LFT&E), provides assessment of the vulnerability and lethality
of a system by subjecting it to real conditions comparable to the required mission
 INTRODUCTION
 DEFINITIONS
 SCENARIO
 PERSPECTIVES
 CONCLUSIONS
SCENARIO
MBSE (Model Based System Engineering)
 Transition to MBSE: Functional, Behavioural and Performance models
 MBSE vs VV&A : What about ?
M&S (Modeling & Simulation) vs T&E (Test and Evaluation)
 Current approach : a synthetic survey
 M&S (Modeling & Simulation) vs M&E (Modeling & Emulation)
 Naval engineering (Top side arrangement)
SCENARIO
-
MBSE vs VV&A : A matter of credibility
VV&A
Verification, Validation
& Accreditation
SCENARIO
-
M&S vs T&E : A synthetic survey
SCENARIO
-
Combat Systems & Top Side Design
From the 3D Ship Data Model:
Topside Arrangement


Ship mission/tasks vs preliminary systems allocation

Combat system preliminary design

Sensors Coverage

Weapons Coverage

Optical Blockage

EMI/EMC, RADHAZ

........
SCENARIO
Combat System Topside Design - Approach
 Modeling & Simulation / Emulation :
• SW Model of Ship Topside & Platform for Operational Performances
− Sensors and TLC antenna arrangements
− Radiation diagrams (3D)
− IR signature
− RCS
• SW Model of ship Topside & Platform for e.m. compatibility
− Compatibility & Susceptibility / Interference estimation
− RADHAZ (HERE, HERO, HERA, HERF and HERP)
• HW copper model study of WB Wire-rope antennas (FAN)
• HW copper model measurements for Verification of Topside SW studies
 Test & Evaluation :
• Real environment measurements for Verification of studies & Validation of models
− On test plan/site/lab for small-medium platforms/systems
(mainly during development)
− In op. environment for small-medium-large platforms/systems
(mainly after deployment/in operation)
SCENARIO
Control by Design
MODELING (PERFORMANCES vs COMPATIBILITY)
CAD model
e.m. model
Operational
Performances
Constraints
radiated e.m. field simulation
CONTROL BY DESIGN (Phase 1)
-
M&S - E.M. STUDIES by SW Models
Software simulation of radiated e.m. fields for
OPERATIONAL REQUIREMENT
Operational
Performances
TLC / Sensors coverage
CAD Geometry w/t
validated antenna
models
-
M&E - PECULIAR STUDY for W.B. Wire-rope antennas (HW Model)
FAN 2-6 MHz
Copper Model (1:50 scale)
FAN antenna modification due to
the installation of 2 SATCOM SHF
antennas
model measured S.W.R.
Satcom SHF
-
M&E - STUDY VERIFICATION by HW Models
Antennas Test – Test Range
boom for Vertical Plan pattern diagram
Zinc surface (about 2000 m2)
Hardware Models
Scale = 1 : 50
Material
: Copper (Conductivity Cu = 50* C. Fe )
SCENARIO
DEVELOPMENT T&E
VERIFICATION (LAB) by ENVIRONMENT EMULATION
Antennas Test – Test Range
100 MHz - 2 GHz
Measurements on
REAL
Platforms/Systems
SCENARIO
OPERATIONAL T&E
VERIFICATION (Real Environment)
AT SEA MEASUREMENTS OF RADIATION DIAGRAMS
FOR ON-BOARD TLC ANTENNAS (example)
(there are similar process for radar and E.W.)
FAR FIELD
N.M.F.I. GRAPHS
Radiation pattern
FAR FIELD (OPERATIVE ISSUES)
NEAR FIELD
Coupling
Synthesis
Efficiency
Choice
SCENARIO
-
EMC-EMI STUDY by SW Models
Software simulation of radiated e.m. fields for
E.M.C. (RADHAZ & EMI)
E.M.C. constraints
Susceptible
equipment
TLC/HF
MIL 461
3D Isolevel
contour
Hazard
Near Field
analysis
EMI
SCENARIO
IR – VISUAL
M & S : SHIP IR Prediction
CAD MODEL
Environmental
parameters
Internal heat
source
24
SHIP IR
PREDICTION SIGNATURE
SCENARIO
IR - VISUAL
Test & Evaluation : Platform Signature Measurements
3 5 000
3 0000
2 5 000
2 0000
1 5 000
1 0000
5 000
25
0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
Jc flare development
Jc Ship
SCENARIO
IR - VISUAL
Test & Evaluation : Platform Signature Analysis
700
600
500
400
300
200
5
4,5
4
100
0
3,5
3
0
26
2
4
6
Tempo [sec]
8
10
12
Area
Intensità radiante di
contrasto [W/Sr]
Andamento dell'intensità radiante di contrasto al traverso di
sinistra (Corsa Alfa 12 nodi assetto D)
2,5
2
1,5
1
0,5
0
B
SCENARIO
IR - VISUAL
Test & Evaluation : Platform Signature Verification
27
SCENARIO
-
Magnetic Analysis
Prima del 1990 ...
Dopo il 2004 ...
Requisiti piu’ stringenti
Courtesy of Fincantieri & IFEN
SCENARIO
-
Magnetic Analysis
Realizzazione Modello Numerico

Generato da altri Modelli
• Idrodinamici (NAPA)
• Strutturali (NASTRAN).
SCENARIO
-
Magnetic Analysis
Approccio classico:

Modellizzazione HW

NAVORD 8050
Segue verifica e convalida:
SCENARIO
-
Magnetic Analysis
Approccio Nuove UU.NN. :
 Modello numerico (processo concordato)
 Progettazione Impianto di Degaussing
Example
SCENARIO
-
Magnetic Analysis
Verifica Degaussing : STANAG AMP-14
N
Transit 9
& garden
Transit 13
Transit 18
SCENARIO
-
Platform Signature : RCS
Approach
RCS SW Prediction Models (on development)







Static Measurements




Method of Moment (MoM)
Physical Optics (PO)
Geometrical Theory of Diffraction (GTD)
Geometric Optics (GO)
Finite Elements Analysis (FEM)
Hybrid Techniques
Models or small target using Compact range or Anechoic chamber
Measurement of the actual Platform (target on a positioner)
−
Near field
−
Far field
Dynamic Measurements (recorded while the platform is in its operational
scenario and is similar to how operational radars will measure the platform )
SCENARIO
-
Platform Signature : RCS Analysis
Approach:
Platform




Land
Air
Sea
M&S



Prediction
Emulation (TBD)
T&E



DT&E
OT&E
SCENARIO
-
Platform Signature : RCS Prediction
Modeling ...

Combination of techniques,
depending on the methods (exact
or approximate) and the object

Exact method (small/simple obj)
Approximate method (large and
complex objects)

STATUS
 Under Evaluation
SCENARIO
-
Platform Signature : RCS Prediction
Status … under evaluation
Courtesy of University of Pisa
SCENARIO
-
Platform Signature : RCS Static Measurements
Models in Compact Range
Work in progress
37
SCENARIO
-
i on
s
en er on
t
Ex und ati
lu
a
ev
Available
up to
110 GHz
SCENARIO
-
Test Site for small targets & models
SCENARIO
-
Platform Signature : RCS Dynamic Measurements
Test site for mobile targets over sea
SCENARIO
-
Platform Signature : RCS Dynamic Measurements
Relocatable laboratory
SCENARIO
-
Detection vs Stealth
Omissis …
SCENARIO
-
Acoustic Analysis
Omissis …
 INTRODUCTION
 DEFINITIONS
 SCENARIO
PERSPECTIVES
 CONCLUSIONS
PERSPECTIVES
-
From M&S to T&E : is there a right way ?
M&S: An underlying approach to understand complex issues …
Engineering Domain: Simulation Based Engineering Science (NSF May 2006)
Dramatic impact od M&S
Technology awareness
Leadership Science & Engineering
 Challenges
Multiscale modeling
Next Generation Algorithms
Dynamic Data-driven appl. Systems
Improve methods to
Quantify uncertainity
Model VV&A
Concept Visualization
PERSPECTIVES
-
From M&S to T&E
Integrated Topside Engineering M&S :
… a perception of the “Need”

Extend the EMC-EMI analysis to lower frequencies

Implement “INDOOR” analysis

Implement “Environment Interoperability” criteria

Look for a “Whole Warship” approach
PERSPECTIVES
-
From M&S to T&E
Our way ahead:
 EMC-EMI analysis
• VLF extention (I^ step, in progress)
• “INDOOR” analysis (II^ step, now starting)
• Power Generation (III^ step, to start in 2010)

RCS Prediction
• M&S (Environment & techniques under evaluation)
• M&E (Compact Range upgrade, under evaluation)
• Test Range (ready and proven)

Environment integration (under evaluation …)
• Performance (System compatibility and effectiveness, I^ step)
• Signature (EM & IR “Environment Interoperability”, II^ step)
PERSPECTIVES
-
From M&S to VV&A
From M&S to VV&A:
… a first step forward


M&S “credibility”
Capability (model functionality and
fidelity for the problem being solved)

Accuracy (SW, input data & output)

Usability (adequate user support to
facilitate correct operations and
interpretation)
PERSPECTIVES
-
From M&S to VV&A
T&E AS A KEY CAPABILITY

DT&E
 for Development and System Engineering as a
support to the Technical Review Process
OT&E
Support in the final System
Acquisition Process
Certification application
PERSPECTIVES
-
From M&S to T&E: DT&E as a KEY CAPABILITY
DT&E  Valuable data to the Technical Review Process
during the Systems Acquisition Process
PERSPECTIVES
-
From M&S to T&E: OT&E as a KEY CAPABILITY
OT&E  Support to the System Acquisition Process
PERSPECTIVES
-
M&S in support of Systems Acquisition
M&S through VV&A versus T&E
The Relationship of VV&A to T&E
(1997 – Allen et al)
When Systems are Simulations:
T&E, VV&A, both
1999 – ITEA (Int. T&E Association)
 INTRODUCTION
 DEFINITIONS
 SCENARIO
 POTENTIAL NEEDS
 PERSPECTIVES
 CONCLUSIONS
Integrated Topside Engineering
A “Stakeholder point of view” about MBSE, the process:
 Large distribuited background and complex industrial processes
 M&S environments heterogeneous, fragmentary and incomplete
 M&S limited “credibility”, due to lack of VV&A structured approach
 Lack of synergy for T&E approach (DT&E vs OT&E)
Integrated Topside Engineering
A “Stakeholder point of view” about MBSE, proposals:
 Move toward aggregated environments, taking care of:
 Systems Compatibility & Effectiveness (maximize operational functions
and performances with platform constrains)
 Signature Analysis & Reduction (minimize signature across all different
domains, em, magnetic, acoustic, ecc.)
 Refine and assess M&S environments “interoperability”
 Implement VV&A approach for each M&S environment
 Perform iterations, as needed ...
M&S: Environments Aggregation
Systems
Compatibility
&
Effectiveness
(Arrangements,
EMI/EMC,
ecc)
M&S: Environments Interoperability
Signature
Analysis &
Reduction
(RCS,
IR,
Magnetic,
ecc.)
CONCLUSIONS

Future complex systems will need a robust MBSE approch and extensive
T&E processes, whatever architecture, SW&HW they would implement

Integrated Topsisde Engineeering rely on a large and heterogeneous
background and take benefit of complex M&S environments (Industry,
Development, Production, Integrators, Customer …)
 A structured approach to integrate M&S,
VV&A and T&E has been proposed
 Institute G. VALLAURI can contribute and
support this approach, strong of its traditional
role for the Italiana Navy and the MoD.
Thanks for your attention!
Back-up
DEFINITIONS
-
DT&E vs OT&E Comparison
DEFINITIONS
-
CERTIFICATION

Standard: specification, which is under the configuration control of an
recognized Standards Developing Organization

Conformity Assessment: demonstration that specified minimum
requirements relating to a product, process, system, person or body are
fulfilled (i.e. Homologation, Type Approval,..)

Certification: Third-party attestation related to products, processes,
systems or persons (ISO/IEC 17000:2005)

Accreditation (referred to products): formal process in which certification
is presented.

Accreditation (referred to bodies): Third-party attestation related to a
conformity assessment body conveying formal demonstration of its
competence to carry out specific conformity assessment tasks (ISO/IEC
17000: 2005)

SCENARIO

Transcription

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