ANSYS Blog: Bracket’s Service Life Improves 46 Percent After Topology Optimisation

November 12th, 2018

Kyungshin’s bracket design before and after its topology optimisation study.

Modern cars are filled to the brim with electrical components that receive power from the junction block. Therefore, the automotive industry considers the bracket that connects the junction block to the car to be a critical component.

As a result, engineers often over design this bracket to survive the heat and vibrations from the engine. This ensures the bracket has a long service life but also increases the car’s cost and weight.

Topology optimisation can help engineers reduce the weight of the bracket while maintaining — or in some cases improving — the part’s performance.

One example is the junction block bracket designed by Kyungshin Corporation. Kyungshin’s topology optimization study proposes a bracket that is 16 percent lighter and has a 46 percent longer service life compared to their original design.

How to Use Topology Optimisation to Reduce the Weight of Automotive Parts

Once Kyungshin inputs the load, fixed positions, supports and available space for their part, the topology optimisation tool can determine an optimal part.

Kyungshin’s engineers use ANSYS Mechanical’s topology optimisation functionality to lightweight their designs.

The software uses inputs — such as loads, strength requirements, supports, available space and weight reduction goals — to produce an optimal part.

Kyungshin’s engineers use the software to create a series of optimal design proposals by varying their weight reduction goals and/or strength requirements.


Topology optimisation helps engineers determine where they can remove material.

Once the engineers settle on a few designs that meet their strength requirements, they need to further refine them to better suit other needs.


Kyungshin’s engineers further refine their topology optimised designs by performing design of experiment (DoE) and parameter studies. For these analyses, they use ANSYS DesignXplorer and ANSYS optiSLang, respectively.

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This blog was originally posted on ANSYS’ website here.

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