The development program of Manatee V2 includes some baseline features fulfilling some key requirements of electrical engineers (V2.0), mechanical engineers (V2.1), acoustic engineers (V2.2) and NVH test engineers (V2.3) involved in the development process of electrified systems. Additional features will be developed during 2021 following customer feedback using Agile methodology.

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The Manatee IT team works under agile precepts. The Agile/Scrum precepts are the underlying assumptions concerning projects around which the Agile/Scrum methodology is based. For the work on Manatee software this means :

  • continuous development and integration
  • short term developments organized around sprints to meet the user’s need
  • regular releases to optimize existing functionalities, increase ergonomic and add new features
  • continuous development of tutorials and « how to » on Manatee website
  • a roadmap and communication based on feedback and transparency


First release on 15 June 2021, last update 7 September 2021

Version V2.1 mainly aims at mechanical engineers involved in the design of electrical systems:

  • FEA-based complex structural models can be loaded in Manatee using modal basis import interface from Altair Optistruct and Ansys Mechanical.
  • Rotor eccentricity effect on both airborne and structure borne noise can be quickly asserted.
  • Operational Deflection Shapes and magnetic forces (including Unbalance Magnetic Pull) can be quickly visualized at variable load and frequency. More advanced post processing enable to troubleshoot noise issues such as spatiograms and modal contribution.

Version V2.1 also provides additional key features for electrical engineers:

  • e-NVH calculation on the whole torque-speed plane based on current map.
  • improved machine definition, in particular geometry and winding pattern definition.

The following improvements and new features have been made:

  • Rotor eccentricity modelling (parallel & inclined, static & dynamic) (since V2.1.0, 15 June 2021)
  • Modal basis import from Altair Optistruct, including modal basis preview (since V2.1.0)
  • Operational Deflection Shape (ODS) and Operational Force Shape (OFS) animations (since V2.1.0)
  • NVH spectrogram per Load Case (spatiograms) for quicker troubleshooting (since V2.1.0)
  • E-NVH calculation on the whole torque-speed plane based on current map (since V2.1.0)
  • Update of Quick Campbell diagram feature with different colors per orders, improving harmonic origin description and export harmonic table as .txt (since V2.1.0)
  • Easier set-up of e-machine (new winding definition algorithm using Star of Slots, optimization of DXF import, rework of rotor skew definition interface) (since V2.1.0)
  • Additional plots on magnetic flux and forces (since V2.1.1)
  • Load / save optimization of heavy data used for calculation (Magnetic Look-Up Table, modal basis, Wave Frequency Response Function etc.) (V2.1.2)
  • Global improvement of GUI and pictures rendering (since V2.1.3)
  • Optimized magnetic force and noise and vibration calculation algorithms (since V2.1.4)
  • Correction of simulation workflow for external rotor topologies (since V2.1.6)
First release on 15 March 2021, last update on 30 May 2021