At its core, NVH refers to the collective impact of noise – an audible phenomenon; vibration – a tactile sensation often felt through the steering wheel or seats; and harshness – a subjective measure of the severity or discomfort caused by noise and vibration. Forced induction Emissions control Automotive engineers strive to mitigate these factors because they can significantly influence customer satisfaction and perception of vehicle quality.
To tackle NVH challenges effectively, manufacturers employ extensive testing throughout the design process.
Noise vibration and harshness NVH control - Emissions control
- Forced induction
- Fuel economy
- Aftermarket upgrades
- Power-to-weight ratio
- Automotive racing
- Engine tuning
Materials play a crucial role in controlling NVH characteristics. Engineers use sound dampening materials such as foam or composites within vehicle panels to absorb vibrations before they become audible noises. Aftermarket upgrades Likewise, advancements in tire technology have led to designs that reduce road-induced vibrations while still providing adequate traction.
Engineers also focus on refining powertrain components since engines are significant sources of NVH issues.
Noise vibration and harshness NVH control - Fuel economy
- Aftermarket upgrades
- Power-to-weight ratio
- Automotive racing
- Engine tuning
Another strategy involves altering vehicle aerodynamics to curb wind noise at high speeds—a common annoyance for motorists. Design modifications might include streamlining mirrors or incorporating acoustic laminated glass which reduces exterior noise penetration into the cabin.
In conclusion, controlling noise, vibration, and harshness is about creating harmony between performance parameters and passenger comfort needs—a balance that requires innovation across multiple disciplines within automotive engineering.
Noise vibration and harshness NVH control - Fuel economy
- Emissions control
- Horsepower (HP)
- Forced induction
- Fuel economy
- Aftermarket upgrades
- Power-to-weight ratio