Modal Analysis for NVH Prediction: The Role of Testing and Simulation

NVH (noise, vibration, and harshness) prediction is a critical process in the automotive industry to ensure customer satisfaction, safety, and compliance with regulatory requirements. Modal analysis is a popular technique used for NVH prediction, involving both testing and simulation. The goal of modal analysis is to measure the natural frequencies, damping ratios, and mode shapes of a structure, which can be used to identify the sources of noise and vibration and make improvements to the design. While modal analysis offers several benefits, such as cost savings and faster time to market, there are also some challenges associated with the technique, including complexity and cost. In this article, we will explore modal analysis for NVH prediction, its benefits, and its challenges.