Software predicts complex sources of noise.
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RAYON 2003 low-frequency, vibro-acoustic simulation software combines boundary element and finite element methods with poro-elastic materials. IBEM solver helps automakers analyze and characterize complex noise sources by computing equivalent 3D model of source. PEM solver allows suppliers and OEMS to analyze performance of acoustic components and predict efficiency in vehicle environment by explicitly modeling layered poro-elastic materials.Original Press Release:
ESI Group launches Low Frequency Vibro-Acoustic Software
Rayon 2003 Offers Advanced Features for the Prediction of Complex Sources of Noise and Trimmed Vehicle Performance
Bloomfield Hills, Michigan, November 4, 2003 - ESI Group today announced the release of RAYON 2003, a low-frequency vibro-acoustic simulation software package for the prediction of the acoustic performance of manufactured products. The 2003 release offers two new advanced solvers and full integration with EDS's CAD/CAM solution I-deas ms 10. The IBEM (Inverse Boundary Element Method) solver helps automakers analyze and characterize very complex sources such as car engines. The PEM (Poro-Elastic Material) solver addresses the needs of suppliers and OEMs, allowing them to analyze the performance of acoustic components and predict their efficiency in the vehicle environment.
The latest addition to ESI Group's comprehensive suite of virtual prototyping solutions, RAYON 2003 reduces the need for extensive laboratory testing, greatly increases the effectiveness of prototyping and speeds up the product development process.
"To my knowledge, RAYON 2003 is the only software combining boundary element and finite element methods with poro-elastic materials. Therefore, we can model our sound-package components using their intrinsic non locally-reacting surface impedance matrices, making their integration in the vehicle compartments easier and faster," says Arnaud Duval, CAE Acoustic group manager, Faurecia, a worldwide leader in automotive equipment. "RAYON 2003 is a cost-effective solution to evaluate the performance of fully trimmed vehicles. We expect to reduce time-to-market while reaching the stringent quality specifications of the automotive industry."
The new IBEM solver relies on RAYON's boundary element module and a robust inverse algorithm. Starting from near field acoustic measurements, the solver automatically computes a very accurate equivalent 3D model of any complex source of noise.
The PEM solver explicitly models layered poro-elastic materials such as acoustic insulation, barriers and trim materials for any detailed structural-acoustic design or geometry that can be modeled with a finite element mesh. Starting from the structural finite element model of the vehicle body-in-white, the noise engineer can extend that model with the PEM solver to include absorbing poro-elastic components and evaluate their influence and effectiveness on interior sound and on radiated exterior environmental noise
RAYON 2003 is available on Windows (NT and XP) and on UNIX (HP, IBM, SGI and Sun) workstations and operates in the EDS I-DEAS ms10-m1 environment.
ESI Group's Vibro-Acoustic Solutions
Virtual prototyping solutions reduce reliance on costly and time-consuming physical testing, speed up the product development process, and optimize the use of noise and vibration control materials. ESI Group's vibro-acoustic software portfolio includes RAYON; AutoSEA2, a real-time broadband noise and vibration prediction analysis and design software ; NOVA, a software package dedicated to the design of layered acoustic components, and FOAM-X, a data acquisition and processing software for identifying the acoustic properties of poro-elastic materials from impedance tube measurements.
About ESI Group
ESI Group is a pioneer and world leading provider of digital simulation software 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.
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Olivier Morisot - Olivier.morisot@esi-group.com
ESI Group, 36800 Woodward Ave., Suite 210, Bloomfield Hills, MI 48304 Phone: 248/203-0642 Fax: 248/203-0696
