Noise performance is all part of the lighter steel design

摘要

NVH specialist LMS has been working on the FutureSteelVehicle (FSV) concept car body structure, where the aim is to create a lightweight body structure without compromising performance in other respects, including NVH. In the project, commissioned by WorldAutoSteel, LMS focused on early stage NVH simulation that took into consideration the advanced steel materials and advanced steel technology used in both EV and HEV vehicle body design. As part of the project, the LMS Engineering Services team was challenged to optimise NVH performance in parallel to the design team, ensuring that the target of 190kg (or less) body-in-white (BIW) mass and functional performance for an EV was maintained. "Achieving low body mass and good NVH performance simultaneously is perceived to be a contradictory objective", said Dirk Oe Vis, vice-president, automotive at LMS International. "Using thinner materials usually has a negative impact on NVH behaviour. The challenge was to propose clever body design changes, which struck a balance between low mass and acceptable NVH performance,".