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March 12, 2013 Smarter Design with the Creo Parametric/Simulate-Mathcad Integration Sebastien COULON EMEA Senior Sales Manager

Smarter design with creo/simulate and mathcad

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Discover how value the Creo-Mathcad integration brings to accelerate your design development.

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Page 1: Smarter design with creo/simulate and mathcad

March 12, 2013

Smarter Design with the Creo

Parametric/Simulate-Mathcad

Integration

Sebastien COULON

EMEA Senior Sales Manager

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Agenda

• Is your goal to create the best design in the least amount of time? – Are you missing the most essential ingredients to achieve that goal?

• Introduction to the role of Mathcad

• How can Mathcad-Creo Parametric/Simulate support this goal?

• Two Worlds to Connect!

• Value Proposition – Creo with Mathcad

• Value Proposition – Creo Simulation with Mathcad

• Creo & Mathcad Highlights

• Customer Use Case - KTM

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• Design parameters

– Can you quickly determine the design parameters/constraints critical to your project?

– Are calculations used to define and derive critical design parameters?

– Are calculations used to define design dimensions?

• Design iterations

– Do you need to reduce the number of design iterations or prototypes required for each design?

– Do you need to reduce the average number of simulations run for each design?

• Simulation

– Do you need to reduce the time spent in the ‘Design Simulation’ phase?

– Do you need to cross check your simulation results?

• Documentation

– Do you need to document the results provided by the simulation?

– Do these documented results need to be easily understood by others?

• Usability

– Do you need a tool that requires less ramp-up and training to non-experienced engineers?

– Do you need to easily take existing IP and quickly modify them for variant designs?

Is your goal to create the best design in the least amount of time?

Are you missing the most essential ingredients to achieve that goal?

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• Engineering = Science (R&D) + Practical Application

• In other words: there is a direct link between R&D and Product

Development – This link is usually in the form of NUMBERS (not geometry)

• Managing this link with Mathcad helps to:

– Reuse existing knowledge

– Ensure following of standards

– Eliminate mistaken data entry

– Production of clear, publication-ready reports

– Leverage calculations in downstream 3D design, CAE, and other applications

Introduction to the role of Mathcad

The role of numbers in Engineering?

R&D Engineering Numbers

Production CAD

BOM

etc

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• Standard mathematical notation – Don’t need to know Mathcad to understand

Mathcad documents

• Comprehensive support for units – Explicit units reduce unit assumption errors

across cultural boundaries, and prevents

disparate unit calculation mistakes

• Document-oriented approach – Mathcad worksheet calculates results and

communicates ideas at the same time

• Visual presentation features – Use of integrated math, text, images, plots, and

areas help communicate ideas more clearly

The Mathcad Environment

Mathcad’s comprehensive approach enables content reuse and communication

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• How do we do it?

– Mathcad provides easy to use and understandable environment, common language and clarity

enhance collaboration (Single source of engineering requirements and calculations)

– Frontload simulations to ensure that model interrogation is accurate

– Easy communication of design intent and decisions

– Identify early design bottlenecks early in the process while still easy to fix

• How does the integration help?

– Test more iterations of the product (Explore alternates earlier in design process)

– Support iterative design process with analysis driven design

– Automate iterative calculations to improve productivity

– Support global design innovations with common language

– Verify and validate design decisions with frontloaded simulations

– Communicate design decisions more easily & share existing IP with new employees more easily

How can Mathcad-Creo P/S support this goal?

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Two Worlds to Connect!

Subsystem calculations

- Suspension response

- Engine performance

Patents

- Analysis of competition

- Development of patents

The world of numbers

(no CAD yet!)

The world of CAD/CAE

(driven by numbers!)

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CAE

Creo Simulate

• Help choose appropriate front spring/damping rate based on

rider/bike mass

• Perform bump-response analysis of system (motorbike) using a

Mathcad state-space model

• Develop mathematical model of shock absorber

– Use calculated parameters to drive 3D model of shock absorber in Creo Parametric

• Assemble the redesigned shock into motorbike assembly

• Mechanism Design Extension (MDX) to study the kinematics of

the motorbike suspension

• Mechanism Dynamics Option (MDO) to estimate dynamic loads

during severe bump

• Creo Simulate to perform stress analysis on rear control link

• Further optimize the designs with BMX – using Robust Design,

Design of Experiments, Statistical Design Studies approaches

• Complete reports in Mathcad

– Present calculations (CAE) against measured (laboratory) data

– Analyze/cross check the simulation results

Simulation Driven Design – Example Steps

Numbers

CAD

Analyse Result &

complete Report

Mathcad

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• Creo with Mathcad provides a comprehensive ENGINEERING platform

connecting R&D, Concept Design, and Detailed Design

• By adopting the PTC Engineering environment companies can:

– Easily perform early math/system modeling

– Re-use existing calculations/intellectual property

– Create dynamic & easy to read reports

– Leverage this data into their CAD system for truly Simulation Driven Design

Value Proposition – Creo with Mathcad

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• Upstream – Provide reference/traceability for all loads/numerical input

– Provide scratchpad for derived inputs

– Reuse of previous IP for inputs

– Use design of experiments functionality to determine key parameters

• Simulate – Use upstream results as first-order approximation.

– Use Creo Simulate to obtain detailed results.

– Fine-tune design with new Simulate results

• Downstream/Report generation – Numbers output from CAE still need interpretation

• Functions in Mathcad (ANOVA, quickscreen, etc.) help analyze and understand how factors influence

simulation outcome.

– (Noisy) Data filtering

– Presentation/publication quality reports generation

Value Proposition – Creo Simulation with Mathcad

Creo Simulation with Mathcad provides those benefits:

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• Redesign 2D/3D with Creo Layout

• Detailed FEA

• Analyze multi-body dynamics

• Creo / Mathcad bi-directional data

exchange

• Modeling – Simulate systems with ODE,

state space, and other functionalities

• Solve block – Solve for optimal design

parameters

• Symbolic equation solving

Creo & Mathcad Highlights

Key Capabilities of Creo and Mathcad Prime

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Use case based on a customer named KTM

Example of Mathcad Integration with Creo & Simulate

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• As the world leader in the off-road competition segment,

KTM began developing and producing street motorcycles in

1994 as well. The street product range is now being

extended with new small-engined bikes, such as the KTM

125 Duke.

KTM owns:

• Creo 2.0

• Creo Simulate 2.0

• Mathcad 2.0

• Windchill PDM

KTM AG

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http://www.ptc.com/appserver/wcms/media/streamed.jsp?im_dbkey=149713&icg_dbkey=904

2 min Video in 9 languages – Integration Creo-Mathcad

Design Validation with Engineering Calculations

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Example 1 - Steering calcs

Bringing Creo dimensions into Mathcad Select motorbike frame

CAD dimensions to share

to Mathcad Prime

Perform calculations for

evaluating steering

geometry (following

company standards)

Engineering report is

dynamically updated and

can be managed in PLM

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Example 2 - Fork Springs

Calculating in Mathcad to drive Creo CAD geometry

Use company know-how

to calculate critical spring

dimensions for given

rider/bike setup

Share these

parameters to Creo

Update and

regenerate Creo

geometry with up-

to-date parameters

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Example 3 - System behavior model

Use Mathcad solving capabilities to evaluate system level models

A simplified mass-spring-damper representation of the motorbike.

We will model this in Mathcad Prime using a State-Space approach…

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Example 3 - System behavior model

• Powerful matrix operation functionality

• Supports solving, data manipulation,

and linear algebra done in

engineering calculations

• Matrices can be used to contain

iterated results that show a complete

design space for a problem

Use Mathcad‟s built-in „state space‟ function

to model the motorcycle dynamics.

As state space requires, specify the model in

the form of „x dot equals A x + B u‟.

Define the A and B matrices based on the

motorcycle geometries, as well as the spring

and damping coefficients.

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Example 4 – Sophisticated Mathematical Modeling

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Example 5 – Driving Creo geometry from Simulation

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Detail of piston and shim stacks (green = compression, red = rebound)

Example 5 – Driving Creo geometry from Simulations

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Example 5 – Driving Creo geometry from Simulations

Use MDX to investigate assembly fit and kinematics (interferences during

compression/rebound stroke)

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Example 5 – Driving Creo geometry from Simulations

Use MDO to evaluate dynamic loads on joints during suspension bump

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Example 5 – Driving Creo geometry from Simulations

Creo Simulate – investigate the stress on rear control link. Loads imported from

previous MDO multibody dynamics analysis

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1. Upfront – Provide reference/traceability for all loads/numerical input

– Provide scratchpad for derived inputs

– Reuse of previous IP for inputs

2. Downstream/Report generation – Numbers from CAE out still need interpretation

– (Noisy) Data filtering

– Presentation/publication quality reports generation

Example 6 - Why Mathcad belongs wherever CAE is used

There are Two Key Areas of Value

Where does this input come from?

Who calculated it?

Can it be verified?

Was it typed correctly?? 8.8? 88? 0.88?

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Example 6 - usage of calculation downstream

For this brake caliper stress analysis we want to apply

a preload to this bolt

UI requires input of axial

force on bolt. What is this

number??

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Example 6 - usage of calculation downstream

The Bolt axial preload is in fact a complex calculation…

Share/Re-use Mathcad worksheet to

ensure consistency in calculation

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Example 6 - usage of calculation downstream

Sharing the calculated result…

Parameter “PRELOAD” now available in Creo for usage:

- Drive geometry in Creo Parametric

- Numerical input to loads, material properties in Creo Simulate

- Etc

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Example 6 - usage of calculation downstream

Instead of typing in a number

directly, just refer to the parameter

we correctly calculated and shared

from Mathcad!

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Example 6 - usage of calculation downstream

1. Preload is correctly assigned to bolt.

2. Updates to Mathcad worksheet will

be reflected here.

3. Managers can audit/verify that

correct calculation is being used.