{"id":71813,"date":"2026-01-20T09:18:36","date_gmt":"2026-01-20T14:18:36","guid":{"rendered":"https:\/\/blogs.sw.siemens.com\/simcenter\/?p=71813"},"modified":"2026-03-26T06:52:33","modified_gmt":"2026-03-26T10:52:33","slug":"e-motor-vibration-synthesis-for-efficient-high-fidelity-enoise-evaluation-whats-new-in-simcenter-3d-acoustics-2512","status":"publish","type":"post","link":"https:\/\/blogs.sw.siemens.com\/simcenter\/e-motor-vibration-synthesis-for-efficient-high-fidelity-enoise-evaluation-whats-new-in-simcenter-3d-acoustics-2512\/","title":{"rendered":"E-Motor Vibration Synthesis for efficient high-fidelity\u00a0eNoise\u00a0evaluation\u00a0– What’s new in Simcenter 3D Acoustics 2512"},"content":{"rendered":"\n

Simcenter 3D Acoustics 2512 and Simcenter E-Machine Design team up to introduce a new e-motor NVH analysis tool.<\/h2>\n\n\n\n

Electrification is booming, and with it, customer demands for ever quieter and more comfortable products are increasing! This creates a significant challenge: how do we design electric motors that are both high-performing and incredibly quiet? <\/p>\n\n\n\n

That’s why addressing Noise, Vibration, and Harshness (NVH) right at the source has become non-negotiable for electric motor design, including their sophisticated power electronics and control systems. It’s now a critical KPI for electric motor design, especially in automotive and industrial applications. We need faster, more accurate NVH predictions to avoid costly fixes, reduce prototype testing, and get our innovations to market quicker (and quieter). <\/p>\n\n\n\n

 Simcenter 3D Acoustics 2512 and Simcenter E-Machine Design 2512<\/a> introduce a new e-motor NVH analysis tool: E-Motor Vibration Synthesis (EMVS). This dedicated \u201ccurrent to noise\u201d process combines a customized workflow and efficient EMAG and NVH Reduced Order Models (ROMs) to deliver rapid and e-motor specific NVH insights. It’s perfect for both NVH novices and specialists alike! <\/p>\n\n\n\n

Simcenter 3D Acoustics advanced capabilities for e-motor NVH prediction <\/h2>\n\n\n\n

Over the past decades, Siemens has developed advanced and highly efficient workflows for in-depth NVH analysis of electric powertrains. The workflow shown below considers each step in the noise and vibration generation process.  From currents that induce electro-magnetic fields over their application and onto the surfaces of the different motor components, to the highly efficient resolution of multi-rpm coupled vibro-acoustic Finite Element (FE) models.  <\/p>\n\n\n\n

The workflow includes force-mapping strategies specifically tailored to e-motor loads, state-of-the-art FE solvers optimized for powertrain NVH prediction performance, and provides control over each step in the simulation process, as well as in-depth NVH-specific post-processing. As such, Siemens enables NVH specialists to gain a full understanding of how the noise and vibrations are generated and to use this knowledge to implement efficient and effective mitigation measures. <\/p>\n\n\n\n

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While this process offers all the insight an NVH specialist needs during the later stages of detailed e-motor development, it comes at a cost both in terms of required NVH simulation expertise and throughput time. Moreover, since the operating conditions of the electric machine are the starting point of the entire workflow, performing iterations during early design stages where the desired motor operating points constantly change becomes very time-consuming. <\/p>\n\n\n\n

In their 2512 release, Simcenter 3D Acoustics <\/a>and Simcenter E-Machine Design<\/a> bring a new complementary \u201ccurrent-to-noise\u201d EMVS workflow for fast e-motor NVH assessment in both early and later stages of the development. By combining the computational efficiency and accuracy of EMAG and NVH ROMs, key e-motor NVH characteristics can be predicted in a matter of minutes with the same accuracy as the detailed process above. Moreover, by offering guided workflows for creating these high-fidelity ROMs, the full strength and depth of Siemens\u2019 e-motor NVH solutions is now unlocked for non-NVH simulation experts. The different steps in this new workflow are shown below. <\/p>\n\n\n\n

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EMVS workflow step 1: EMAG ROM creation<\/strong> <\/h2>\n\n\n\n

To enable early and efficient NVH assessments with the EMVS process,  engineers can now generate a single electromagnetic ROM for a specific design and reduce the overall amount of data transfer and data generation time. This process is shown below and more information can be found here<\/a><\/p>\n\n\n\n