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Optimization > Geometry Optimization

Design objective – Geometry Optimization

The design objective is the overall goal of the optimization. You can define only one objective for an optimization.

You can define the following types of design objectives:

  • Volume

  • Weight

  • Frequency (for modal or linear buckling analysis)

  • Result Measure. The Result Measure command lets you define objectives such as displacement, stress, strain, and temperature by extracting these results from your solved analysis solution.

To define the objective, you select the response type, such as stress, and the object to which the objective will be applied, such as a body. You then choose whether you want to minimize or maximize the response, or specify a target value for the response.

When you solve the optimization, the software attempts to converge on the objective.

Existing objectives

The Define Objective dialog box displays existing defined objectives.

If multiple result measures exist, they are displayed in the objectives list, and the optimization uses the selected result measure.

Note:

Geometry Optimization does not support result measures with Model Subset Selection set to Finite Element.

How do I

Create the geometry optimization

Create a weight or volume objective

Create a frequency objective

Create an objective from a result measure

Create a weight or volume constraint

Define a frequency design constraint

Create a constraint based on a result measure

Define design variables for the geometry optimization

Solve the geometry optimization

Learn more

Geometry optimization

Geometry Optimization workflow

Types of geometry optimization

Defining design constraints – Geometry Optimization

Defining design variables – Geometry Optimization

Part files modified by Geometry Optimization

Analyzing optimization results

Update an expression with the result from a specific iteration

Look up more details

Geometry optimization parameters

Quick links

Exporting result quantities as named expressions

Command reference

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Design objective – Geometry Optimization, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id1354202 · retrieved 2026-07-17