Vibro-Acoustic Response of Multi-Layer Systems: Creating a Condensed Model to Reduce Mesh Size and Calculation Time

Laminate composites are often the answer to ever increasing lightweighting demands. While significant advances were made regarding mechanical strength, there remain a number of challenges regarding their vibro-acoustic properties. Composites are indeed lighter and stiffer, which as a result, tends to decrease their sound insulation properties at critical audible frequencies. One thus needs a thorough design of the structure to avoid acoustic comfort failure. During this webinar, a unique approach to predict the vibro-acoustic response of laminate composites will be presented. Supported by short computational times and high fidelity predictions, this new feature of AlphaCell enables to optimize the design at an early stage of the project. In addition to accurate predictions, this model further enables to reduce the computational cost in FE analyzes by providing material cards with condensed properties. Presenter: François-Xavier Bécot | Director and Executive Co-Manager, Matelys Featuring AlphaCell by Matelys, available through the Altair Partner Alliance.

The examples presented during the webinar will cover the cases of sound absorption and sound transmission.

This webinar will present the basics of porous material modeling and user key benefits of a combined usage of OptiStruct and AlphaCell. Please note: You will need to login to Altair Connect to view this recording.

An important factor in improving vehicle quality and perception is guided by how vehicles are designed for noise, vibration and harshness, making NVH an important domain for the automotive industry. Altair and its Alliance Partners offer a complete solution for automotive NVH applications. In this 45-minute webinar, we will give an overview of problems faced in the automotive industry for NVH analysis and how HyperWorks and Altair’s Partner technologies help address these issues, providing a complete solution that spans from modeling and assembly to analysis, diagnostic and optimization. Presenters: Jianmin Guan, Director, Vibration and Acoustics Solutions, Altair Vijay Ambarisha, Senior Project Engineer, ANSOL Jerry Manning, President, Cambridge Collaborative Francois-Xavier Becot, Co-manager, Matelys