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Bruel & Kjr UK

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Virtually Drive Automotive CAE Models


Anyone can evaluate the potential Noise, Vibration and Harshness (NVH) impact of CAE component designs.

Copenhagen, Denmark, March 11, 2016 --(PR.com)-- With the latest Noise Vibration Harshness (NVH) simulator applications, non-experts and experts alike can experience the consequences of component design decisions by driving an authentic simulation.

The fully immersive experience provided by a driving simulator gives a proper context to experience driving sounds in, which affects the evaluations people make. This realistic simulation also recreates all of the dynamic aspects of driving, such as changing gears and braking.

Until recently, incorporating computer-aided engineering (CAE) design data into NVH simulators has been laborious enough that NVH simulation has been mostly restricted to the initial setting of NVH targets, rather than helping with their realisation throughout the vehicle development process.

That is all set to change now, because Brüel & Kjær’s NVH simulator can directly incorporate large CAE models. Now, complete CAE component design models can be driven by anyone in just seconds, inserted into the complete virtual vehicle simulation. This allows the latest design iteration, or many design alternatives to be easily driven, in order to compare them with previous design iterations and benchmarked competitor vehicles – at any stage in the development process.

This new capability – called CAE Auditioner – automatically converts standard CAE response data from all common CAE codes into ready-to-run NVH simulator models. Careful testing has ensured that it recognises the file types and knows how to read them seamlessly.

Engineers can also blend CAE models with real-world test data at will, such as allowing them to mix predicted energy strengths from CAE files with real-world test data that quantifies the sensitivity of the path through the vehicle to the driver. This speeds up development by integrating the worlds of test and CAE, and also allows components measured on a test bench to the ‘driven’ in the virtual vehicle.

NVH simulators are widely used to set sound targets, by ’driving’ benchmark vehicles and capturing their subjective opinions, before development on new vehicles even begins.

Afterwards - during the development process - engineers can deconstruct the noise and vibration experienced in an existing vehicle, to detect and quantify the sources of very specific sound features, such as boom or rumble.

The software package that performs this - source path contribution (SPC) - can also isolate the paths the sound energy takes through the vehicle and the air to get to the observer, quantifying the sensitivity of these paths as ‘transfer functions’. By using Brüel & Kjær’s NVH simulator, engineers can create and drive a virtual vehicle based on such data.

More information about Brüel & Kjær’s NVH simulators is available on the company’s website.

About Brüel & Kjær

Brüel & Kjær is a world-leading manufacturer and supplier of sound and vibration measurement systems.

We help customers measure and manage the quality of sound and vibration in their products and in the environment. Focus areas are aerospace, space, defence, automotive, ground transportation, airport environment, urban environment, telecom and audio.

Brüel & Kjær has an unparalleled portfolio of sound and vibration equipment and is a long-established designer and manufacturer of innovative instrumentation including sound level meters, microphones, accelerometers, conditioning amplifiers, calibrators, noise and vibration analysers, and PULSE software.

We also design and manufacture the LDS range of vibration test systems, as well as complete airport and environmental monitoring systems: WebTrak, ANOMS, NoiseOffice and Noise Sentinel.

Brüel & Kjær runs a variety of training courses - from basic introductions to noise and its effects to more specialised classes teaching customers how to get the most out of their equipment. Free online training courses, conducted by our expert engineers, run throughout the year too.

Brüel & Kjær is a subsidiary of UK-based Spectris plc, which has annual sales of £1.1bn and employs around 8,300 people worldwide across its four business segments.
Contact Information
Brel & Kjr
Heather Wilkins
01223 389 800
Contact
www.bksv.co.uk
Jarman Way
Royston
Herts
SG8 5BQ

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