multidisciplinary system design optimization using model ... · and power system analysis using the...
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Multidisciplinary System
Design Optimization Using
Model-Based Engineering to
Support Phased Array Antenna
Architectural Trades
April 17-19, 2018
John HodgeRF/Antenna Engineer
Northrop Grumman Mission SystemsBaltimore, MD
Phoenix Integration International Users’ ConferenceApproved For Public Release #18-0280; Unlimited Distribution
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Outline
I. What is Model-Based Engineering (MBE)?
II. Objectives & Value Proposition of Analytical MBE
III. Using MBE to Apply MSDO to Antenna System Design
IV. Using Data Science, Analytics, and Optimization for Trade Space Exploration
V. System Trades, Mission Visualization, & Cost Model Integration
VI. MBE Analytical Services: An Idea to Expand MBE Analytics
VII. Conclusions Link to System
Approved For Public Release #18-0280; Unlimited Distribution
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What is Model-Based Engineering?
3Approved For Public Release #18-0280; Unlimited Distribution
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What is Model-Based Engineering?
Definition: Model Based Engineering (MBE) is the use of analysis and
simulation tools throughout the product lifecycle to reduce the use of
physical prototypes. In addition, MBE supports critical design decisions
by allowing organizations to evaluate trade-offs between performance,
cost, and risk. It also enables the identification and correction of potential
problems before they become too costly.
MBE provides engineers the capability to:
• Create and maintain a library of analysis models and engineering
workflows
• Perform multi-domain trade studies and ask “what-if” questions
• Visualize the design space and find the best designs
• Archive, manage, and share the resulting data and meta-data
4 Source: Phoenix Integration (https://www.phoenix-int.com/application/mbe-model-based-engineering/)
MBE results in shorter development times, reduced costs, and better products
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Approved For Public Release #18-0280; Unlimited Distribution
Model-Based Engineering: Descriptive vs.
Analytical Modeling
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A Complete Model-Based Systems Engineering Solution Integrates &
Connects Both Descriptive and Analytical Models
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Objectives & Value Proposition of
Analytical MBE
6Approved For Public Release #18-0280; Unlimited Distribution
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Objectives of This Work
• Develop an integrated, modular, and reconfigurable analytical cost-performance model of a phased-array antenna for EW, radar, and communication systems
• Perform combined aperture, module, and power system analysis using the subsystem hardware MBE Integrated Antenna Model
• Connect antenna model to system & mission modeling, simulation, and analysis frameworks to enable mission-level trade space exploration
• Extend lessons learned into Northrop Grumman’s corporate modeling, simulation, and analysis initiatives using MBE
7Approved For Public Release #18-0280; Unlimited Distribution
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Approved For Public Release #18-0280; Unlimited Distribution
Digitally Connecting Models for System
Optimization – Value Proposition
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• Typical Challenge for RF Sensor System Design (Radar, EW, MF, etc.)
– Customer need for certain system or mission performance
– Customer constraints for example in cost, weight, space, available power
• Non-Connected Solution
– Individual performance models: Weight, Power, Performance, Reliability, …
– Separate Descriptive Models: Architecture, Redundancy
– System optimization for all constraints difficult, time consuming, and error prone
– Typically takes multiple days to determine performance of a single solution
• Digitally Integrated & Connected Solution
– Automates connections between related models and eliminates transcription error
– Performance of a single solution can be performed in seconds, minutes (depending
on complexity of individual models)
– Ability to apply multidisciplinary design, analysis, and optimization (MDAO)
techniques to system development & trade studies
Integrated & Connected Analytical Models are Needed to Manage
Increasing System Complexity in the Design & Development Process
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Approved For Public Release #18-0280; Unlimited Distribution
Applying Model-Based Engineering Techniques
to Antenna Array and Radar Design
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Using Integrated Analytical Models to Identify System Configurations
that Provide the Best Cost, Performance, & Risk Trade
• Improved technical communication
• Improved design quality
• Increased productivity
• Reduced design & execution risk
*From INCOSE: Why do MBSE? (2012)
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MBE Enhances the Engineering Product Dev
Process and Speeds Up Design Iteration
10 * From MIT ESD 77: Prof. de Weck and Prof. Willcox
Pre-Proposal
Trade Studies
Program Detailed
Design Efforts
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Using MBE to Apply MSDO to
Antenna System Design
11Approved For Public Release #18-0280; Unlimited Distribution
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Multidisciplinary System Design Optimization
(MSDO) Framework Enhances Product Design
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* From MIT ESD 77: Prof. de Weck and Prof. Willcox
Phased
Array
Antenna
System
Parameters
Simulated
Performance of
Customer
Requirements,
Financials, and
Risk
MBE Enables Faster Simulation Iteration Time Enabling Broader Trade Space
Exploration, Increased Design Variables, and Mission Effectiveness Design Evaluation Approved For Public Release #18-0280; Unlimited Distribution
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Antenna Array Multi-Disciplinary Model
Interdependence
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From NGMS Consulting RF Engineer
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Using Data Science, Analytics,
and Optimization for Trade
Space Exploration
17Approved For Public Release #18-0280; Unlimited Distribution
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System Trades, Mission
Visualization, & Financial Modeling
22Approved For Public Release #18-0280; Unlimited Distribution
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MBE Analytical Services: An Idea
to Expand MBE Analytics
26Approved For Public Release #18-0280; Unlimited Distribution
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Conclusions & Next Steps
29Approved For Public Release #18-0280; Unlimited Distribution
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Approved For Public Release #18-0280; Unlimited Distribution