NLR: Topology optimization of a rotating strain gauge balance | EuroNorth RUM 2021

RUM2021 ​​​​​​​RUM2021-EuroNorth ​​​​​​​CustomerPresentation ​​​​​​​Tosca ​​​​​​​Abaqus ​​​​​​​

For wind tunnel testing of advanced aircraft propulsion concepts, NLR designed a new type of rotating strain gauge balance by topology optimization with SIMULIA Tosca Structure within the Clean Sky 2 project PropMat. The design objective was to minimize strain energy, while respecting constraints for volume, stress at strain gauge locations of the strain gauge bridges, and an overhang constraint for 3D printing of the balance. The final balance design was checked with SIMULIA Abaqus for resulting displacements, maximum stress in the balance body and expected strain gauge bridge outputs. The final design was 3D-printed at NLR.

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