Electric vehicle noise & vibration testing is crucial for vehicle development, ensuring the final product’s comfort, safety, and reliability. While electric vehicles (EVs) and internal combustion engine (ICE) vehicles undergo…
Exhaust Vibration Measurement - Customer Requirement One of Prosig's customers needed to perform exhaust vibration measurement on some of their vehicles. They contracted Prosig to take the measurements and provide reports of the…
As its name suggests Operational Deflection Shape analysis shows the vibration pattern experienced during normal operational condition. This is different to other structural vibration tests such as impact hammer tests, bump tests or shaker tests which require a more controlled excitation force and are used to determine specific characteristics of the structure under test, such as natural or resonant frequencies.
Having played the trumpet for over 10 years I have left many an orchestral rehearsal with my ears ringing courtesy of the onslaught of noise from the trombone section behind me. In searching for a topic for my final year research project as part of my studies at Southampton University, the risk of hearing loss to orchestral musicians seemed a natural choice.
When dealing with some vibration data from a pump, we observed some strange phenomena in the data. It turned out to be a classic case of amplitude modulation. Here we explain what that means.
The intention of this article is not to present any new scientific theories or ground breaking techniques, but to introduce new users to hammer impact testing and remind seasoned technicians of a method…
A method to identify subjectively objectionable disturbances (e.g. piston slap, valve tick,… etc) in internal combustion engines
