scalable model deployment with adaptable fidelity...scalable model deployment with adaptable...

SCALABLE MODEL DEPLOYMENT WITH ADAPTABLE FIDELITY

Peter Sundström, Modelon

28 May 2018 Modelon Confidential 1

INTRODUCTION

Peter SundströmSimulation Engineer, Mechanics & Vehicle Dynamics

E-mail: peter.sundstrom@modelon.com

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

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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

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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

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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

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ADAPTABLE FIDELITY

ADAPTABLE FIDELITY

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Computational load

Burden of parameterization

Ease of use

Accessibility

Usefulness

Fidelity

CHASSIS AND SUSPENSIONS

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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

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CHASSIS AND SUSPENSION

• Behavioral kinematics and compliance

▪ Define wheel center motion as a function of wheel travel and steering input

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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

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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

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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

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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

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CHASSIS AND SUSPENSION

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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

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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

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DEPLOYMENT

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CAE engineer

Suspension designer

Function developer

DEPLOYMENT

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CAE engineer

Suspension designerFunction developer

Answers

DEPLOYMENT

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Computational load

Burden of parameterization

Ease of use

Accessibility

Fidelity

SCALABLE DEPLOYMENT

Sneak peek: Next generation Modelica tool

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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

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MODEL CREATION

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• 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

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• 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

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• When specific answers are needed quickly

• Expose only required options

SCALABLE DEPLOYMENT

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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

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QUESTIONS

28 May 2018 Modelon Confidential