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2019 R1 Update

ANSYS DesignXplorer

Summary

Design Impact

DesignXplorer

ANSYS DesignXplorer drives Workbench design point creation and updates using industry leading algorithms.

Both response-surface based and adaptive methods are used to efficiently explore your design space. Data collected is analyzed and charted to provide design understanding and optimal candidates.

• Goal driven optimization results in better designs, sooner

• Six Sigma Analysis ensures robust performance

• Design exploration leverages the power of simulation and leads to understanding, insight and innovation

Exploration Understanding Innovation

• Uses DX technology to drive a set of Fluent runs and build a Reduced Order Model (ROM)

• Specify the Fluent Variables and Zones, including custom field functions, to include in the ROM

• Quality Metrics and verification points to ensure accuracy

• Save the ROM in our ROMZ format or as a generic FMU (1.0 or 2.0) file

– Cross platform support at 2019 R1

ROM Builder

19.2

ROM Quality Metrics

• More rapid quality checks

• Background calculation ➢ doesn’t lock UI

• Instant calculation for newly imported verification points

2019 R1

Working with Snapshots

• ROM Builder relies on design point “snapshots” generated for each design point.

• Can now import design points and set them to use specific snapshot files

• Export/Import design points and ROM snapshot archives

• Can view individual snapshots in the ROM viewer

• Clear unused ROM snapshots

2019 R1

• Launch the ROM viewer to rapidly investigate your design space– Easily save screen shots

• From Workbench or stand alone

ROM Viewer

• When importing design points into a DOE, DX can auto adjust parameter ranges to fit the imported data

• Only options that apply will be selectable

• Ranges can be Expanded or Shrunk to Fit

Auto Adjust Parameter Bounds

2019 R1

9

GARS (Genetic Aggregation Response Surface)Has been a major focus over several releases

GARS

Genetic Aggregation Response Surface

GARS Algorithm finds the best response surface automatically

GARS Algorithm

Finds the best possible response surface for each output automatically

– R17.x

• GARS became the default

• Auto refinement!

• Refactored algorithm

• Speed & efficiency

– 18.x

• Significant memory management improvements

• Robust support for failed design points

– 19.0

• Simultaneous refinement points

• Log file shows you the final aggregated response surface for each output

GARS Log file

Log

file

GARS Auto Refinement

Automatic refinement adds design points until response surface accuracy meets user requirements

• Option to refine for one or more outputs at a time

• “Maximum output” adds one refinement point per iteration to improve the worst output

• “All Outputs” adds a refinement point for each un-converged output

• Crowding Distance

• This constraint gives the minimum allowable distance between refinement points

• Max Number of Refinement Points Per Iteration• Species the number of Simultaneous Points

• Works only with Max Output

• Use with RSM, One Job per Design Point

Options

Auto Refinement

• Refinement driven by specific outputs• Based on user-defined tolerance

• Tolerance in units• Specify number of simultaneous

refinement points per iteration• Additional Advanced options available

• Refinement points are added automatically– Algorithm to place new refinement points

efficiently where predicted error is greatest.

Refinement Convergence

• X-axis shows number of refinement points

• Y-axis shows ratio between the max predicted error and the tolerance for each output

• Convergence occurs when all the outputs are within the convergence threshold

With Simultaneous Refinement (n=10),GARS converges FASTER!

DX Core added to Electronics DesktopDirect DX integration in Desktop

– DOE, Response Surfaces, Sensitivity Analysis, Optimization

• ANSYS App Store https://catalog.ansys.com/– DesignXplorer Utilities

– Matlab Optimizers

– And more…

• Updated Reference– Guide with examples

– Build your own extensions

Extensions

Summary slides

• ANSYS DesignXplorer capability is now included with;–All ANSYS AIM products, including AIM Student–ANSYS Mechanical Enterprise, Mechanical Premium,

Mechanical Pro, Mechanical Enterprise Prep/Post, DesignSpace and ANSYS AutoDyn-3D

–ANSYS CFD Enterprise, Premium and ANSYS CFD Prep/Post

–ANSYS Mechanical CFD–ANSYS Academic Associate, Research

and Teaching products

Design Exploration Included…

• 15.0: Open Optimization Platform (ACT) and Parameter Relationship Constraints

• 16.x: Correlation Parameter Filtering

• 17.x Response Surface Automation (GARS) – 16.1 - Cross Validation

– 17.0 – Performance and Speed

– 17.1 – Auto-refinement

– 18.0 – 40% memory reduction

– 18.2 – Robust Support for Failed Design Points

– 19.0 – Simultaneous Refinement Points

• 18.x: Performance, Snap to Grid, DP images, Approve Generated Data

• 19.0: Automated Optimization Method

• 19.1: Various advanced options• Reduced Order Modeling (ROM)

– 19.2 ROM for Stead State Fluent

– 2019 R1, Performance Enhancements, Snapshot management, Quality Metrics

Previous DX releases