Friday, March 2, 2018

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).

Thursday, February 22, 2018

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 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.