Vibration Analysis and Testing of Permanent Magnet Synchronous Motors for Electric Mobility Applications

Vibration Analysis and Testing of Permanent Magnet Synchronous Motors for Electric Mobility Applications unifies electromagnetics, structural dynamics, and data science to provide testing methods and mitigation strategies for noise, vibration, and harshness (NVH) in electric vehicles with permanent magnet synchronous motors (PMSMs). It synthesizes related research, connecting advanced theoretical models to critical real-world applications. Application-specific NVH challenges, such as unique operational profiles, packaging constraints, and passenger comfort metrics are covered, as are industry standards and validation protocols. The book also features workflows for building diagnostic models, descriptions of relevant datasets, and a comparative analysis of Fast Fourier transform-based methods versus artificial intelligence-based approaches for specific fault detection tasks. Common machine types are also compared, with a focus on aspect ratio, typical operations speed ranges for different vehicle applications, and the harmonic spectrum of magnetomotive force of distributed versus concentrated windings. The book also features case studies detailing specific failure modes, test data, root cause analysis, and mitigation strategies, as well as NVH-friendly design guidelines and common pitfalls and troubleshooting considerations, covering major tests (noise emission, vibration mapping, fault seeding), typical setup errors (setup misplacement, aliasing, ground loops), and common data analysis mistakes (incorrect windowing, misinterpretation of orders, and more).