Structure, vibration, silence
Beyond traditional static analysis — we simulate the dynamic behaviour of electric motors under real operating conditions: vibrations, shocks, resonances and acoustics, from modal analysis to waterfall diagrams.
Find the resonances before they find you
Modal analyses assess the resonant frequencies and natural vibration modes of the machine. We verify that no resonance falls inside the operating range (0 RPM to max speed) with at least a 20% safety factor — and if it does, we stiffen the structure or redistribute mass at the design stage, not after the prototype fails.
Modal results then feed MSUP-based frequency response analyses: assessing induced stresses, and checking accelerations and displacements against the limits set by inverter electronics manufacturers — iterating until durability is validated.
Mode shapes & FRF — sweep through as you scroll
The full vibration tool-chain
Every analysis required by automotive and industrial standards, executed in-house.
Modal & frequency response
- Modal analyses — resonant frequencies & natural modes
- Operating-range resonance checks with 20% safety factor
- Frequency response — stress & acceleration assessment
- Validation against inverter electronics limits
Shock & random vibration
- Shock response spectrum — half-sine, saw-tooth and custom profiles per standard
- Random vibration with PSD spectra — road-induced loading per automotive standards
- Harmonic vibration — ICE excitation (HEV) and rotor unbalance across the operating range
Rotor dynamics & order analysis
- Campbell diagrams — rotor resonances vs. rotational speed
- Critical speed identification in the operating range
- Stiffness evolution of the rotor with speed
Noise, vibration & harshness
- Multiphysics workflow from electromagnetic forces to acoustics
- Equivalent radiated sound power (ERP)
- Waterfall diagrams of the motor's acoustic signature
Statics, bearings, adhesives, fatigue
Static linear & nonlinear
Accelerations, rotational speeds, pressures, temperature maps, bolt pretensions, forces and moments — with advanced material plasticity modelling.
Bearing assessments
Rolling Bearing inside ANSYS: power loss, preloading, lubricant film thickness and bearing acoustics by numerical simulation.
Adhesives simulation
Magnet peel-off under axial forces and centrifugal loads — a particular case for axial flux machines.
Fatigue & buckling
Fatigue assessment including the FKM method; linear and nonlinear structural buckling — and more under continuous methodology development.
Will it survive the road, the shock, the years?
Send us your duty cycle and standards requirements — we'll prove the structure before the prototype exists.