NVH, an acronym for Noise, Vibration, and Harshness, refers to the field of study and engineering concerned with minimizing the unwanted noises, vibrations, and harshness experienced in vehicles, machinery, and other mechanical systems.
Noise refers to any unwanted sound, whether it is generated externally or internally within a mechanical system. Examples of noise could include engine noise, wind noise, or rattling sounds. Vibration refers to the oscillations or movements that occur within a mechanical system, which may be caused by uneven surfaces, imbalanced parts, or other factors. Harshness refers to the discomfort or unpleasantness experienced when interacting with a mechanical system, typically caused by excessive noise and vibration.
The purpose of addressing NVH is to enhance the overall user experience by reducing the noise, vibration, and harshness levels. This can be achieved through various methods such as improving insulation and soundproofing, optimizing component design and material selection, and implementing vibration damping techniques. NVH engineers work towards making the mechanical system more comfortable, quiet, and refined, providing users with a smoother and more enjoyable experience.
By analyzing and mitigating NVH issues, manufacturers can enhance the quality and performance of their products, ensuring customer satisfaction and loyalty. The field of NVH spans numerous industries, including automotive, aerospace, consumer electronics, and industrial machinery, where noise, vibration, and harshness management are crucial aspects of design and engineering processes.
