VibraGear

Predict, optimize and control your gears Advanced software for simulating gear excitations and dynamic responses

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What is VibraGear?

VibraGear is a software package developed by Vibratec in partnership with the École Centrale de Lyon.
It enables analysis of internal gear excitation mechanisms (static transmission error, meshing stiffness fluctuations) and calculation of their vibratory response using imported finite element models.

VibraGear provides engineers with a powerful tool for designing quieter, more reliable and higher-performance gearboxes.

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Main Functions

Calculation of Excitations (TERRATM solver)

Static transmission error (STE)
Fluctuations in mesh stiffness
Taking static deformation into account

Gearbox Dynamic Response (ISITM solver)

Modal basis import from NASTRAN or OptiStruct*
Fast frequency solver
Multi-gear calculation
Campbell diagrams and order tracking

Export & Post-processing

Export to NASTRAN for visualization of operational deformations (excluding planetary gears)
Results for structural and acoustic analysis
Planetary gears (optional module)

Compatible Gear Types

Visualization of the interaction zone between electromagnetic and structural models

Optional Modules

Tooth Micro-geometry Optimization

– Search for profiles minimizing STE over a defined torque range
– Robustness analysis with respect to manufacturing tolerances

Planetary Gears

– Dedicated module for planetary gear simulation

Why choose Vibratec ?

Experimentally validated methods

Results correlated with actual test campaigns

Recognized NVH expertise

Adapts to your existing simulation chain

Flexible integration

Beyond prediction, it helps to improve design

Optimization tool