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Motor mount optimisation

An aluminium eVTOL motor mount refined through CAD revisions and structural analysis.

Project
Academic project
Year
2026
Tools
CATIA 3DEXPERIENCE
CAD render of the aluminium motor-mount bracket.
Final motor-mount geometry.

The brief

Develop a motor mount for an eVTOL tilt mechanism around fixed motor and pivot interfaces, balancing mass, strength, stiffness and three-axis CNC manufacture.

The approach

Successive CAD revisions remove material from low-stress regions and reshape the lower reinforcement. Finite element studies inform each geometry change, followed by review in the context of the motor, bell-crank and surrounding assembly.

Work shown

  • Component and assembly CAD
  • Assembly integration
  • Geometry revision and FEA study
  • Structural analysis

Design decisions

Retain the mounting interfaces.
Preserve the motor bolt pattern and pivot connections while revising the surrounding geometry.
Reshape the reinforcement.
Address stress concentrations while keeping the bracket suitable for three-axis machining.
Motor mount within a tilting propulsion assembly, with detail views of the bracket.
Motor-mount integration and interface details.
Four CAD views of the final aluminium motor-mount bracket.
Final bracket geometry and mounting features.
Motor-mount geometry revisions from V0 to V14 with stress plots.
Geometry progression from V0 to V14. Stress plots retain their individual scales.
Finite element views of motor-mount revisions V0, V5, V10 and V14.
Selected structural analysis views. Each panel uses its own stress scale.
Motor-mount CAD views showing the bracket and surrounding tilt assembly.
Mount geometry and its position in the tilt assembly.
Finite element result views across motor-mount geometry revisions.
Structural analysis across successive design iterations.
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Motor mount optimisation