OROS at Automotive Techdays: Acoustic comfort optimization based on an innovative TPA method

OROS will present its innovative solution in Advanced Transfer Path Analysis (ATPA) to achieve unparalleled noise reduction results in the passenger compartment: Acoustic comfort optimization based on an innovative TPA method

The project objective is to propose a full Advanced TPA measurement and analysis solution for the Automotive industry. TPA is an experimental based method to quantify sources and their transmission path contributions to a certain position: typically the driver or passenger position. An innovative technique called ATPA is introduced to allow currently unmatched performances:

1. ATPA can characterize the response transmission paths, improving the possibilities of other classical TPA methods by allowing the determination of the part of response due to neighboring subsystems.
2. ATPA allows to find panel noise contributions even if the panels are coupled, without any dismounting: other already existing TPA techniques working with panel contributions use the hypothesis that panels are not linked together, which is not a good description of the reality.
3. ATPA gives detailed information about the noise and vibration paths. Currently, it gives information about 2-step paths, for example: structure linking point N -> panel M -> target’s position. Potentially, the method can give information about any possible path thanks to the direct transmissibility.
4. ATPA can split the global contribution of a panel into air-borne noise and structure-borne noise.
5. ATPA provides results on a wide frequency range. Current TPA techniques work only for a low-frequency range. The presented technique allows to calculate noise contributions for mid and high frequencies as well as for low frequencies.

Automotive Techdays is aimed at decision-makers in the automotive industry. The major players in the automotive sector in the Auvergne-Rhône-Alpes region will present their innovations with short demonstrations (5-7 minutes).
OROS provides the automotive sector with a wide range of products and services for noise and vibration measurement. The goal for its users is to obtain an efficient evaluation of the vibro-acoustic phenomena by improving the comfort of the vehicles as well as their durability and their performance.

OROS : des solutions NVH toujours plus innovantes, au service des véhicules classiques et électriques

OROS met à disposition de ses clients du monde automobile plus de 30 ans d’expérience et de savoir-faire en NVH. Rencontre avec Guillaume Cousin, Product Manager au sein d’OROS, qui nous en dit plus.

OROS se positionne comme un acteur reconnu en essais de bruit et vibration (NVH). Pouvez-vous nous en dire plus ? 
OROS est une PME française crée en 1985 qui regroupe plus de 40 collaborateurs. Nos produits sont fabriqués en France et distribués dans le monde entier : 80% de notre chiffre d’affaires est réalisé à l’export. Nous avons des filiales aux États-Unis, en Allemagne et en Chine, ainsi qu’un vaste réseau de distribution à l’international.  Dans les années 90, nous avons été pionniers en lançant les premiers analyseurs FFT portables basés sur laptops. Quinze ans plus tard, nous nous sommes focalisés sur le développement de solutions logicielles applicatives : une interface pensée pour l’application est clé pour permettre à nos clients d’atteindre le niveau d’efficacité qui leur est demandé.

OROS: NVH solutions more and more innovative, dedicated to classic and electric vehicles (EV/HEV)

OROS makes more than 30 years of NVH experience and expertise available to its customers in the automotive industry. An interview with Guillaume Cousin, Product Manager at OROS, who is going to tell us more about this.

OROS markets itself as a highly-reputed player in the field of noise and vibration testing (NVH). Can you tell us a bit more about this? 
OROS is a French company created in 1985 that now has more than 40 employees. Our products are manufactured in France and distributed around the globe: 80% of our turnover comes from our export activities. We have subsidiaries in the United States, in Germany and in China, as well as a vast international distribution network. In the 1990s, we pioneered the launch of the first portable FFT analyzers based on laptops. Fifteen years later, we have focused on the development of applicative software solutions: a well-thought-out interface is essential in order for our customers to be able to achieve the level of efficiency that is required of them.

Réseau Mesure - OROS remet le prix du concours de Mesures Solutions EXPO 2018

Eric Pessarelli, de la société Cegelec CEM (38 - INOVALLEE - Meylan) a été l'un des nombreux visiteurs du salon Mesures Solutions EXPO 2018, organisé par le Réseau Mesure, à répondre au questionnaire de satisfaction.

Les réponses permettent au Réseau Mesure d'améliorer encore les prochaines éditions.
1.966 participants ont fréquenté les allées du salon les 28 et 29 mars à la Cité des Congrès de Lyon (visiteurs et exposants).
Eric Pessarelli est le gagnant du concours car il s'est approché au plus près de ce résultat, avec un pronostic de 1.867 participants.

Intégrée au Pôle Nucléaire de VINCI Energies (1800 personnes), Cegelec CEM  est une entreprise d’ingénierie de 270 personnes, qui se positionne en concepteur, constructeur et intégrateur de machines spéciales et d’équipements « clés en main » pour le nucléaire et les projets scientifiques.

OROS, fabricant et fournisseur de systèmes de mesure de bruit et vibrations, adhérent du Réseau Mesure également implanté sur le bassin grenoblois et exposant à Mesures Solutions EXPO 2018, a eu le plaisir de lui remettre son prix, une montre Apple Watch.

OROS NVH Testing Systems - Automotive Testing Expo Europe 2018

Register now for your free entry pass

Visit us on stand #8164 to know more about our NVH testing systems 

OROS designs and manufactures noise & vibration testing systems including application oriented solutions and associated services. It masters the latest technology of data acquisition, digital signal processing as well as application-oriented software. The OROS analysers are flexible enough to handle automotive NVH testing measurements in different test environments: laboratory, in vehicle or production. OROS solutions are dedicated to vehicle, engine and component NVH covering structural dynamics, noise analysis and rotating analysis.
Application software suite includes order tracking & torsion, balancing, sound quality & jury testing, near-field acoustical holography, sound intensity, sound power, modal and transfer path analysis.

OROS technology forum presentation on Wednesday, 6 June

Using psychoacoustics indicators for go/no-go acceptance in production testing Guillaume Cousin, OROS Product Manager. 

Discover in this presentation how loudness, sharpness, roughness and other can contribute efficiently to the go/no-go acceptance decision. Forum program.

Looking for an ultraportable system for noise & vibration measurements?

The field of measurements is moving towards greater portability, simplicity and accuracy. For measurement situations where space constraints apply, ultraportability, autonomy and data compatibility are the most important features required in instruments. Come and discover the new OROS Mobile DAQ System on our exhibition stand (#8164).  

 MODS datasheet, MODS video

OROS sur Mesures Solutions Expo

MESURES SOLUTIONS EXPO 2018 - LYON

28-29 mars 2018, Cité Centre de Congrès, Lyon.

Venez nous rendre visite sur le stand B17 et assister à l'exposé thématique la Qualité Sonore au service des tests de fin de chaîne de production par un expert OROS.

Nouveauté

Prochainement disponible - OROS MODS, système DAQ ultra-mobile

Quelques images pour en savoir plus (vidéo disponible sur la chaîne youtube OROS).

La Qualité Sonore au service des tests de fin de chaîne de production

Jeudi 29 mars 14h

Traditionnellement utilisée dans le design du son, la qualité sonore est moins connue pour son application de discrimination de pièces défectueuses. Découvrez comment les grands groupes industriels effectuent des tests acoustiques sur leurs composants automobiles, pompes industrielles ou autres appareils ménagers grâce à la qualité sonore.

par Nicolas Denisot, ingénieur d'application chez OROS

Sound Quality Solutions to support new trends on EV/HEV Vehicles

Measured and quantifiable perception of sound quality is highly demanded for sound design applications.

To answer to the demand, OROS is promoting two Sound Quality Solutions:

• Sound Quality Lite to get started with filtered playback and psychoacoustic parameters,
• Sound Quality Plus brings all the expert tools to cover the various aspects of sound design. 

OROS took the opportunity to present its Advanced Sound Quality Solutions during the Open Technology Forum Presentations at Automotive Testing Korea, focusing on sound quality process from the acquisition to the objective evaluation. (the presentation is available on myOROS after logging onto myOROS).

ORBIGate V6.6 Release - Keep It Moving!

ORBIGate continues to develop in the Turbomachinery market now releasing version 6.6.

Some great new features:

• Management of kinematic markers: allows frequency lines related to machine gear train kinematics to be located efficiently. It is particularly efficient  in identification of gear mesh and ball bearing frequencies occuring in machines.
• The instant report facility inserts all active plots from all layouts in your report, on demand and during the test without the need for template predefinition.

In addition, thanks to the continuous development of the OROS range, V6.6 is the version to  use in combination with NVGate 11. (download ORBIGate® Software Version 6.6.by logging onto myOROS)

NVGate 11 - GoToResults Release - Straight to the point!

NVGate 11 is a major version of the OROS Teamwork instruments software platform. In addition to several other improvements, NVGate 11 offers a new user experience with the intuitive GoTo Results interface.

GoToResults is a simple, clear and efficient interface that dramatically reduces  setup time and clarifies  ongoing measurement.
It deals with the main noise and vibration measurement applications (impact hammering, order tracking, NVH waterfall, etc..) in a modern environment.
Experts/analysts can prepare measurements using models that include instructions and instrument setup, whilst final setup is completed on-site with the inputs, displays and save menu options.

Discover in detail how NVGate 11 can improve efficiency of your  noise and vibration  measurements (download by logging onto myOROS)
Contact your local dealer for an upgrade to NVGate V11.xx.

How to Boost Bike Rider Performances on Cobblestone Roads Using OROS Modal Analysis?

This study has been carried out by Samuel Crequy and Xavier Chiementin  from the Research Group in Engineer’s Sciences  at the University of Reims, and Georges Kouroussis from the University of Mons.

Recent studies have demonstrated that more than 7 minutes of vibration exposure on a cobblestone road can have detrimental effects. The aim of this study is to reduce vibration effects on the bike-rider system by applying the Operational Modal Analysis (OMA) method.

The OROS system was selected for its "on-bike" measurements capabilities. The OR35 8 channels instrument was installed in the rider’s backpack (see picture). Data acquisition was processed in multiple runs with 2 references and 14 responses. The first stage was to check repeatability of OMA on sections of cobblestone road (10 passes). The second stage was to acquire the 14 responses on 2 passes for each configuration.

Autonomy, size and weight of the OROS system enabled accurate results to be collected without any influence on the bike-rider system.

OROS Modal software was used for post-analysis. Modal parameter extraction and a shape mode of the bike were provided for each speed and rider mass.

The study led to bike design adjustments for each combined configuration of rider, road and speed.
Thanks to the real-time capabilities of OROS instruments, embedded measurements were successfully monitored during acquisition stages.

OROS latest technology updates enabled the monitoring measurement campaigns from a vehicle close to the bike under test, thanks to the Wi-Fi now integrated in the Teamwork instruments. See the latest features of OR35 Teamwork.

The complete scientific research article was presented at the Analyse Vibratoire Expérimentale (Experimental Vibration Analysis) conference in France, in November 2016.
Read the full paper on myOROS (please be first logged in or create an account to access dedicated information)

See also an OROS analyzer embedded by a bikerider from the FDJ team (French language)

FdJ is a cycling team taking part in the Tour de France. In preparation for next year’s race, the team has opted to undergo vibration optimization to give them better performance on cobblestone sections of the race stages. In collaboration with Reims University, the dynamics of bike / wheels / tires / human body are measured using OROS equipment (OR35 noise and vibration analyzer), in a pack on the rider’s back.

Initially, measurements are made on indoor tracks for identification of the normal modes. Next, measurements are carried out on cobblestone roads themselves. Sensors are fixed on the saddle tube, the stem, and on the rider’s arms and buttocks. Pedal force is also recorded.

After mode/ performance analyses, specific combinations of wheel types, tire pressures and bike frame dimensions are recommended for each rider.