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SCALABLE MODEL DEPLOYMENT WITH ADAPTABLE FIDELITY
Peter Sundström, Modelon
28 May 2018 Modelon Confidential 1
INTRODUCTION
Peter SundströmSimulation Engineer, Mechanics & Vehicle Dynamics
E-mail: [email protected]
Phone: +46733 847 957
Experience
• With Modelon since 2009
• Developer for Vehicle dynamics library
• Consulting work related to Mechanics and Vehicle dynamics simulations
2© Modelon 2017
3
MULTI-PLATFORM ECOSYSTEM
OPTIMICA
IGNITESimplorer
TECHNOLOGY LICENSINGMODEL CREATION
Define once using holistic approach:
• Multi-physics
• Multi-fidelity
• Multi-purpose
• Scalablility and re-use
MODEL SHARING
Deploy broadly with a standard interface:
• Multi-platform
• Integration
• Distribution
• Black/grey/white box
MODELON 2018
4
• Ann Arbor, MI
• Hartford, CT
• Gothenburg, SE
• Lund, SE
• Hamburg, DE
• Munich, DE
➢ ~75 employees (MSc/PhD) at offices in USA, Sweden, Germany, Japan, (India)
➢ Customers in Fortune 500 in Automotive, Aerospace, Energy and Industrial Equipment
➢ ~30% annual growth since 2004
• Trichy, IN
© Modelon 2017
• Tokyo, JP
5/28/2018
TOPICS
• Model fidelity for chassis and suspension models
• Model deployment
• Scalable deployment
▪ Sneak peek on new product
28 May 2018 Modelon Confidential 5
MODELICA: THE OPEN STANDARD FOR SYSTEMS MODELING
• Easy-to-use and intuitive componentbased multi-domain modeling of systems
• Graphical and textual language to capturethe physics and logic behaviour of components and systems
• First principles (physics) result in powerfuland scalable predictive models for behaviorand performance
• A non-proprietary open standard supported by multiple tools as foundation for systems modeling
• Large community and ecosystem of services, tools and model libraries
Confidential © Modelon 2016 6
WWW.MODELICA.ORG
Modelon’s vehicle dynamics solution is based on openstandards Modelica and FMI allowing it to be easilyintegrated into existing toolchain and deployedthroughout your organization.
Modelon’s Vehicle Dynamics Library, is the platform ofchoice for Formula 1, NASCAR and automotive OEMsas the only full fidelity MBD solution deployable torealtime applications.
© Modelon 2015 7
VEHICLE DYNAMICS LIBRARY
28 May 2018 Modelon Confidential 8
ADAPTABLE FIDELITY
ADAPTABLE FIDELITY
28 May 2018 Modelon Confidential
Computational load
Burden of parameterization
Ease of use
Accessibility
Usefulness
Fidelity
CHASSIS AND SUSPENSIONS
28 May 2018 Modelon Confidential 10
CHASSIS AND SUSPENSIONS
28 May 2018 Modelon Confidential
Basic 3D models Parametric multibody CAD data, flexible partsBehavioral K&C
SA LM Poly
CHASSIS AND SUSPENSION
• Basic 3D model
▪ Pure vertical/Swing arm suspensions
▪ Pure vertical wheel travel
▪ Includes roll and pitch dynamics
• Relevant for
▪ Large batch runs
▪ Faster than realtime
▪ Exploring auxiliary concepts
▪ Traffic situations
▪ Self driving
28 May 2018 Modelon Confidential 12
CHASSIS AND SUSPENSION
• Behavioral kinematics and compliance
▪ Define wheel center motion as a function of wheel travel and steering input
28 May 2018 Modelon Confidential 13
CHASSIS AND SUSPENSION
• Polynomials▪ Set basic gradients for behavior
▪ Set specific behavior for individual d.o.fs
▪ Easy to parameterize
▪ Fast execution
• Relevant for▪ Handling studies
▪ Exploring suspension effects on full vehicle without defining parts and joints
▪ Optimizing for suspension characteristics
28 May 2018 Modelon Confidential 14
Poly
CHASSIS AND SUSPENSION
• Lookup tables
▪ Typically from K&C data
▪ Detailed description of motion
▪ Large set of parameters
▪ Still fast
• Relevant for
▪ Single-core realtime
▪ Function verification
▪ Handling studies
28 May 2018 Modelon Confidential 15
CHASSIS AND SUSPENSION
• Parametric multibody
▪ Full representation of suspension components connected with joints and/or bushings
▪ Quick feedback for geometry changes, bushing characteristics
• Relevant for
▪ Suspension design
▪ Handling studies
28 May 2018 Modelon Confidential 16
CHASSIS AND SUSPENSION
• Elasto-kinematic with flexible parts
▪ Multibody with additional flexible components either parametric or from FEA
• Relevant for
▪ Detailed suspension analysis
▪ High frequency: Ride comfort, transmission effects
▪ Deformations in handling effects
28 May 2018 Modelon Confidential 17
CHASSIS AND SUSPENSION
28 May 2018 Modelon Confidential 18
28 May 2018 Modelon Confidential 19
DEPLOYMENT
FMI: THE OPEN STANDARD FOR MODEL DEPLOYMENT
FMI® is:
• Tool independent standard for model
exchange and co-simulation
• Currently supported by more than 80 tools
• Strong support from automotive industry
FMI® enables:
• Model-sharing and IP protection
• Deployment in different applications
• Streamlined tool connectivity
Confidential © Modelon 2016 20
ToolSolver
FMUModel
ToolFMUModel
Solver
WWW.FMI-STANDARD.ORG
20Model Exchange
Co-Simulation
DEPLOYMENT
© Modelon 2017
MANY ENGINEERS
FEW MODELING AND SIMULATIONEXPERTS
DEPLOYMENT
• CAE engineer▪ Builds chassis models based on multibody tools▪ Runs simulations and analyses▪ Basic active components
• Suspension designer▪ Designs suspension components
• Needs to satisfy requirements on durability, construction tolerances, packaging but also vehicle dynamics
• Can benefit from configurable deployed models
• Active safety function developer▪ Needs model to verify functionality virtually before physical testing▪ Needs fast models for large batch runs▪ Can use models to cover more variants than is feasible with physical
testing
28 May 2018 Modelon Confidential 22
DEPLOYMENT
28 May 2018 Modelon Confidential 23
CAE engineer
Suspension designer
Function developer
DEPLOYMENT
28 May 2018 Modelon Confidential 24
CAE engineer
Suspension designerFunction developer
Answers
DEPLOYMENT
28 May 2018 Modelon Confidential 25
Computational load
Burden of parameterization
Ease of use
Accessibility
Fidelity
SCALABLE DEPLOYMENT
Sneak peek: Next generation Modelica tool
28 May 2018 Modelon Confidential 26
SCALABLE DEPLOYMENT
• Web based tool
▪ Client in browser
▪ Server on cloud or installed locally
• Combining Modelon’s computation platform, model libraries and deployment capabilities in single solution
28 May 2018 Modelon Confidential 27
MODEL CREATION
28 May 2018 Modelon Confidential 28
• Expose Modelica editing capability in the web browser
• Users can build models, simulate and more
• Experienced modeling engineers can supply fully configurable model libraries for end users
SIMULATION
28 May 2018 Modelon Confidential 29
• More than just dynamic simulation
▪ Steady-state
▪ Monte carlo
▪ Optimization
• Analysis on range of variants
▪ Will my system work on all available variants?
• Cloud simulation
▪ Save time by using many execution nodes
CUSTOM FRONT ENDS
28 May 2018 Modelon Confidential 30
• When specific answers are needed quickly
• Expose only required options
SCALABLE DEPLOYMENT
28 May 2018 Modelon Confidential 31
Computational load
Burden of parameterization
Ease of use
Accessibility
Fidelity
SUMMARY
• Adaptive fidelity
▪ Deliver models with the right fidelity for the job
▪ Get answers you need at the right time
• Deployment
▪ Building the models is only the first step
▪ Let more people get the answers they need quickly
• Scalable
▪ Take the step towards more than just dynamic simulations
▪ Leverage the cloud
▪ Spread knowledge with little effort
28 May 2018 Modelon Confidential 32
QUESTIONS
28 May 2018 Modelon Confidential