- #1
k.udhay
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What does a first / second / nth order frequency mean physically?
NVH stands for Noise, Vibration, and Harshness. It refers to the unwanted sound, vibration, and harshness that can occur in a vehicle or other mechanical system.
NVH can be caused by a variety of factors, including engine and transmission design, exhaust system design, road conditions, and vehicle age. It can also be influenced by the materials used in the construction of the vehicle.
NVH can affect the overall comfort and performance of a vehicle, as well as the safety and durability of its components. It is important for manufacturers to minimize NVH in order to improve the overall driving experience and meet customer expectations.
NVH is typically measured using specialized equipment such as microphones, accelerometers, and sound level meters. These tools can capture and analyze sound and vibration data, which can then be used to identify and address NVH issues.
There are a variety of techniques used to reduce NVH, including sound insulation and absorption, vibration isolation, and tuning of engine and exhaust systems. Careful design and selection of materials can also play a role in minimizing NVH. Additionally, regular maintenance and upkeep of a vehicle can help prevent the development of NVH issues.