ANALYSIS TYPE / 04
Reduce Unwanted Sound and Vibrations — or Enhance Beneficial Sound
Overview
The study and modification of noise and vibration characteristics in vehicles and mechanical systems is known as Noise, Vibration, and Harshness (NVH). The task is to measure and minimize undesirable noise and vibration, while also enhancing beneficial sounds. Engineering, acoustics, and human factors come together in this multidisciplinary field to create more comfortable products and environments. Noise describes unwanted sounds including engine noise, road noise, and wind noise. Vibration describes unwanted movements of components including engine, transmission, and suspension. NVH addresses these to reduce harshness — the subjective quality of unpleasantness or annoyance.
Industries Served
Deliverables
Key Aspects
Identifying the dominant noise and vibration transfer paths from source to receiver — quantifying the contribution of each path to the total acoustic response at the target location.
Shifting natural frequencies away from excitation frequencies through mass, stiffness, or damping changes — detuning resonances that amplify vibration at the driver or occupant position.
Identifying which body panels contribute most to interior noise levels — directing acoustic treatment and stiffening investments to the highest-impact locations.
Evaluating the frequency-dependent dynamic stiffness of mounts, bushings, and brackets — ensuring isolation performance across the full operating frequency range.
Connect with our structural simulation team to discuss the right approach for your application.
