Wind Noise Control in Product & Production
Authors/Creators
Description
With the rapid development of vehicle electrification, aeroacoustics (wind noise) and aerodynamic drag have become the dominant factors affecting high-speed NVH (Noise, Vibration, and Harshness) performance. This presentation provides a comprehensive and practical framework for systematic vehicle wind noise control, spanning both the product development (R&D) and mass production processes. First, the fundamental physical mechanisms of wind noise—including airborne/structure-borne noise, airflow impingement, Helmholtz resonance, and buffeting—are analyzed, alongside critical testing methodologies. A key emphasis is placed on the vital distinction between static sealing and dynamic sealing. Second, from the perspective of product design, specific engineering countermeasures are proposed, encompassing flushness and gap control (DTS), acoustic laminated glass application, aerodynamic underbody design, door panel stiffness enhancement, cavity partitioning, and double-wall acoustic packaging. Finally, the presentation highlights the often-overlooked wind noise control within the manufacturing and production phase. Detailed execution strategies for Body-in-White (BIW) gluing, wiring harness grommet sealing, structural hole treatments, and weatherstrip installation are demonstrated through practical engineering cases. Ultimately, this presentation offers a closed-loop engineering guideline to ensure robust wind noise performance from early design to final assembly.
(Note: This document is an updated archival version (2026) of the presentation originally delivered in 2019, with references updated to reflect their final publication status.)
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Wind Noise Control in Product & Production 20190905 - V2.pdf
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2019-09-05Presentation
References
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