Coupling ANSYS Workbench with

modeFRONTIER

Structural optimization of a metal sheet with hole

Model definition and Parameterization

Structural analysis

Optimization workflow

Summary

Optimization workflow

Analysis of results

The model is a metal sheet with hole.

The sheet is fixed constrainedalong the bottom edge

Two distributed loads along top and right sides are applied

Model Definition

top and right sides are applied

Model parameters are: Position, dimension and

fillet of the hole Thickness of the metal

sheet

Model Parameterization

Structural Analysis

The mesh is automatically created by Workbench

The distributed loads are applied on two side surfaces (100 N)

Optimization Workflow (modeFRONTIER)

Design ParametersInput variables 5 geometric variables

Output variables Maximum stress and

displacement Mass

Design goals Minimize maximum

displacement Minimize mass

Optimizations set-up dataSampling phase: Original configuration nr initial

individuals: 16

Exploration phase: MOGA-II scheduler 320

iterations

Optimization Analysis Parallel Chart

The Parallel Chart allows the filter of the designs in order to get the

optimal values for both the objectives

The set of Best Designs (Pareto frontier) can be visualized

Displacement is inversely correlated with mass

Displacement is

Optimization Analysis Correlation Chart

Displacement is inversely proportional to thickness

Mass is directly proportional to thickness

12

Optimization Analysis Bubble Chart

The Bubble plot shown is a 4D view of the scatter

It compares the design that have been investigated with respect to different objectives

3

Solution Compromise

2

Lower Max Displacement

1

Lower Mass Value

3

Optimization Analysis Results

Original Design Compromise Solution

Max displacement 0.498e-7 m Max displacement 0.498 E-7 m

Mass 0.288 Kg Mass 0.236 Kg