Nonintrusive parametric NVH study of a vehicle body structure

A reduced order model technique is presented to perform the parametric Noise, Vibration and Harshness (NVH) study of a vehicle body-in-white (BIW) structure characterized by material shape design variables. The ultimate goal develop methodology which allows efficiently explore variation in space BIW static dynamic global stiffnesses, such that NVH performance can be evaluated already preliminary phase development process. proposed based on proper generalized decomposition (PGD) method. obtained PGD solution presents an explicit dependency introduced variables, obtain solutions 0.1 milliseconds therefore opens door fast optimization studies real-time visualizations results pre-defined range parameters. method nonintrusive, interaction with commercial software possible. parametrized finite element (FE) built means ANSA CAE preprocessor software, account for geometric comparison between full-order FE simulations performed using MSC-Nastran validate accuracy In addition, find optimal materials properties respect performance. Finally, support designers decision-making process, graphical interface app developed visualize how changes variables affect quantities interest.