Is NVH Important?
2 Answers
It is quite important. Automotive NVH refers to the English abbreviation for Noise, Vibration, and Harshness. This is a comprehensive indicator for measuring the manufacturing quality of a vehicle, providing the most subjective and surface-level experience for car users. NVH issues in vehicles are one of the key concerns for major automobile manufacturers and component suppliers in the international automotive industry. Below are methods to improve automotive NVH characteristics: 1. First, control the vibration and noise sources: This requires improving the structure of components that generate vibration and noise, enhancing their vibration characteristics, and avoiding resonance. 2. Improve the balance of rotating components: This can enhance the NVH characteristics of the vehicle. 3. Increase precision: Improve the machining accuracy and assembly quality of components to reduce impacts and friction between relatively moving parts. 4. Optimize fluid flow: Improve the flow conditions of gases or liquids to avoid the formation of vortices. 5. Enhance body structure: Improve the vehicle body structure to increase stiffness; apply sound waves with amplitudes equal but opposite in phase to the noise source, etc.
NVH is particularly important to me because I commute by car every day, and the experience directly affects my mood. Excessive noise can be uncomfortable for the ears, especially on highways where wind noise is so loud that it drowns out the music and increases driving fatigue. When vibrations are strong, the steering wheel shakes noticeably, causing arm fatigue, and the rumbling on bumpy roads makes driving a real ordeal. A well-designed car with good NVH control provides a smooth ride, making long trips less tiring. Poor NVH may indicate issues with the suspension system or poor body sealing, requiring maintenance. I recommend test-driving multiple vehicles and paying attention to wind noise and vibrations, such as testing in urban traffic conditions. Good NVH enhances overall driving pleasure and safety.
