With manufacturers facing constant pressure to shorten product design cycles, accelerating traditional vibration test times is a critical consideratio
Fortunately, Brüel & Kjær and HBM-nCode offer products that significantly reduce vibration test times without exposing the vehicle or component to unrealistic vibration levels.
Traditional Gaussian random test signals can’t accurately represent the ‘peaky’ vibration signals seen in the real-life use of many products. To address this, the LDS LASERUSB Vibration Controller from Brüel & Kjær offers non-Gaussian random vibration through its Kurtosis Control software.
The ability to tailor kurtosis (‘peakedness’) allows for accelerated fatigue testing that saves time, as testing with high kurtosis delivers more time at high acceleration levels. For a durability test lasting many hours, high-kurtosis testing delivers significantly more fatigue damage than a Gaussian random test.
So how do you accurately simulate the conditions that brought about your measured field data? That’s where nCode GlyphWorks® software by HBM comes in, as the only commercial software that makes it possible to quantify the fatigue of vibration testing and subsequently create a representative PSD or swept-sine shaker vibration test. nCode GlyphWorks enables the combination of multiple time or frequency domain data sets into representative test spectra that accelerate the test while matching the fatigue damage seen in the field data.
As HBM is a sister company to Brüel & Kjær under the Spectris umbrella, accelerated test spectra exported from nCode GlyphWorks are easily imported into Brüel & Kjær controllers to perform shaker table tests.
About Brüel & Kjær
Brüel & Kjær is a world-leading manufacturer and supplier of sound and vibration measurement systems. Brüel & Kjær helps its 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 renowned deliverer of innovative instrumentation, including sound level meters, microphones, accelerometers, conditioning amplifiers, calibrators, noise and vibration analysers and software. To see the full range of products and systems, please visit www.bksv.com.
Brüel & Kjær also runs a variety of training courses, from basic introductions to noise and it’s 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. For all course registration details visit http://www.bksv.com/courses
Brüel & Kjær is a subsidiary of UK-based Spectris plc (www.spectris.com) that has annual sales of £787m and employs around 6,000 people worldwide in its 13 business units. Brüel & Kjær has 1150 employees worldwide, and is represented by sales offices in 55 countries.
For additional information please contact:
Bruel & Kjaer
Telephone: 01763 255 780