Root Cause Analysis of Noise and Vibration in Electrical Machines

Controlling electrical noise from the design stage to the prototyping phase is particularly important for the development of electric motors. Indeed, electromagnetic forces can be a major source of unpleasant noise. The purpose of the technical workshop is on the one hand to familiarize with acoustic signature of electric motor (day 1) and on the other hand to apply more advanced techniques to troubleshoot and reduce noise of electric motor (day2). This topic addresses all engineers involved in the development of electrical machines with NVH requirements. Through all the development stages of e-machines, simulation and experiments are required to fully characterize theirs NVH behaviors. EOMYS and HBK, each one specialized in their respective domain (e-NVH analysis and simulation, and measurement), collaborate to organize a detailed live workshop.

April 27th - No Charge

Electromagnetic forces can be a major source of unpleasant noise in electric machines. This topic addresses all engineers involved in the development of electrical machines with NVH requirements. Through all the development stages of e-machines, simulation and experiments are required to fully characterize theirs NVH behaviors. EOMYS and HBK, each one specialized in their respective domain (e-NVH analysis and simulation, and measurement), collaborate to organize a detailed live workshop.

The technical worshop focuses on:

• Introduction to e-NVH detailing the physical generation process of magnetic noise and vibrations

• Noise and Vibration data acquisition with HBM Genesis HS and analysis with B&K BKConnect software during a e-motor run-up

• Noise and Vibration simulation with Manatee software including Root Cause Analysis demonstration

* The process to identify the root cause of noise is therefore addressed based on tests and simulations.

April 28th - $700

The technical workshop focuses on:

• Description of standard tests to identify causes of noise due to magnetic forces including order tracking analysis, Experimental Modal Analysis, Operational Deflection Shape, Time/Frequency Colormap

• Noise and Vibration data acquisition with HBM Genesis HS and analysis with B&K BKConnect software including EMA and ODS

• Theory of e-NVH from magnetic force shapes, resonance effects, to air-borne / structure-borne transfer paths

• Review of application cases with Manatee software including skewing and default demonstration

• Analysis of specific slot pole combination provided by the participants

At the end of the workshop, each trainee receives the theoretical workshop support as well as free access to e-NVH pedagogical videos gathered by EOMYS consultants and R&D engineers.

Host or Publisher HBK/EOMYS