Software simulates noise and vibration control measures.

Press Release Summary:



AutoSEA2 2003 addresses need for control of broadband airborne noise and sound induced vibrations. Product uses Statistical Energy Analysis method to predict higher frequency and random vibro-acoustic response, enabling designers to meet quality specifications early in development process. Features include simulation of vibration damping from acoustic treatment layers, thermogram and energy flow diagnostic displays, and general laminate subsystem with visco-elastic material properties.



Original Press Release:


ESI Group Announces AutoSEA2 2003


New Version of Noise and Vibration Simulation Software Enables Designers to Meet Critical Quality Specifications

Noise-Con 2003, Cleveland, June 23, 2003 - ESI Group releases today AutoSEA2 2003 at the National Conference on Noise Control Engineering. Part of ESI Group's comprehensive suite of virtual prototyping solutions, AutoSEA2 addresses the critical need for the control of broadband airborne noise and sound induced vibrations. The product uses the Statistical Energy Analysis method to predict higher frequency and random vibro-acoustic response. AutoSEA2 cost-effectively simulates noise and vibration control measures enabling designers to meet critical quality specifications early in the development process. The 2003 version includes significant new capabilities such as simulation of vibration damping from acoustic treatment layers, and enhanced thermogram and energy flow diagnostic displays.

"The time it takes for a vehicle to move from concept to production continues to decrease for today's automakers" said Jay L. Pyper, North American manager of market development of Solutia Automotive, a leading manufacturer of protective interlayer for glass. "We no longer have years to conduct expensive field-testing and evaluation, yet we still need to demonstrate the effectiveness of our products. With AutoSEA2 automakers can simulate a testing model and evaluate the performance of our auto glass inter-layers early in the engineering process, allowing for more cost effective integration into their programs."

AutoSEA2 2003 includes a new general laminate subsystem with visco-elastic material properties, allowing engineers to evaluate efficient production measures to increase structural damping for vibration control. It accurately models damping material such as "quiet steel", plastic coated metal and laminated glass.

New version also enables predictions of the damping added by acoustic treatment layers, including foam-backed carpet, dash barriers and headliner trims. To enhance model building productivity, the 2003 version supports object grouping and provides new features for model quality checking.

To help diagnose the noise paths and to identify the design parameters which are controlling the predicted noise levels, the energy level "thermogram" has been enhanced. A new 3D "energy flow diagram" further facilitates rapid design solutions of complex multi-source and multi-path noise and vibration problems.

AutoSEA2 2003 is available on PC (Windows 98, ME, NT4, 2000 and XP) and on UNIX workstations from Hewlett-Packard, running HP-UX 11.

ESI Group's Vibro-Acoustic Solutions

Virtual prototyping solutions eliminate the need for costly laboratory testing, speed the product development process, and minimize the production cost of added noise and vibration control materials. ESI Group's vibro-acoustic software portfolio includes AutoSEA2, NOVA, a dedicated version of AutoSEA2 for automotive components, and RAYON. Using both finite element methods and boundary element methods, RAYON predicts the vibro-acoustic response at low frequencies and is well suited for the prediction of trimmed vehicles' acoustic performance.

About ESI Group

ESI Group is a pioneer and world leading provider of digital simulation for prototyping and manufacturing processes that take into account the physics of materials. ESI Group has developed an entire suite of coherent, industry-oriented applications to realistically simulate a product's behavior during testing, to fine tune the manufacturing processes in synergy with the desired product performance, and to evaluate the environment's impact on product usage. ESI Group's product portfolio, which has been industrially validated and combined in multi-trade value chains, represents a unique collaborative, virtual engineering solution, known as the Virtual Try-Out Space (VTOS), enabling a continuous improvement on the virtual prototype. By drastically reducing costs and development lead times, VTOS solutions offer major competitive advantages by progressively eliminating the need for physical prototypes. With revenues close to 43 million euros in fiscal year 2002, ESI Group (Nouveau Marché: Euronext Paris - Software - Euroclear 6584 - Bloomberg ESI FP - Reuters ESIG.LN) employs over 400 high-level specialists worldwide. The company and its global network of agents provide sales and technical support to customers in more than 30 countries. On the Net: ESI Group site: www.esi-group.com

Virtual Try-Out Space is a trademark of ESI Group. All other products, names and companies referenced are trademarks or registered trademarks of their respective owners.

READER ENQUIRIES:

Amy Teets - amy.teets@esi-group-na.com

ESI Group, 36800 Woodward Ave., Suite 210, Bloomfield Hills, MI 48304

Phone: 248/203-0642 Fax: 248/203-0696

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