Acoustics

Latest Posts

  • Quest-for-Quiet-Exa-ATZ
    By Vincent Le Goff In the automotive industry, it’s not what you hear – it’s what you don’t hear – that matters the most to vehicle safety and comfort. Advancements in aeroacoustics have helped...
  • Quiet Comfort
    Quiet Comfort: Acoustic Simulation to Resolve Fan Coil Cassette Unit NoiseBy Mohammed MeskineLook up and you might be able to spot a fan coil cassette unit: an active comfort unit integrated into the...
  • By Robert Powell Off-highway equipment challenges manufacturers to find new ways to reduce product noise. In addition to improving performance, efficiency and value in new designs, manufacturers...
  • By Adrien Mann If you’ve been in a new car lately, you know that automotive OEMs are focused on reducing noise from sources like the engine, wind, and rolling. This means that drivers and...
  • After more than a decade away from race circuits, Jaguar Racing is joining the latest Formula E series
    Electric vehicles hogged the limelight at this year’s Paris Motor Show, and not just cars of the road-going variety. With the third season of the FIA Formula E championship commencing earlier...
  • Electric vehicles look set to hog the spotlight at this autumn’s Paris motor show
    Electric vehicles look set to hog the spotlight at this autumn’s Paris motor show as makers put increasing faith in a technology that is still struggling in the showrooms. The biannual...
  • The most far-sighted automotive companies are taking advantage of increasingly cheap computing power to leverage simulation work more heavily in their vehicle development. The technology behind...
  • Vermeer presented this optimized design showing vertical plane noise dB map at NoiseCon 16
    According the U.S. Environmental Protection Agency, the key to attacking noise pollution is addressing it in the design stage. The Agency states it is much easier to design noise out of a machine...
  • Automotive emissions testing is a complicated problem and digital simulation may be the solution
    Emissions testing just got a whole lot more complicated than it already was for manufacturers – but it really doesn’t need to be. The latest complication originates in Europe, where...
  • Exa's Dr. Paul Stewart discusses the importance of 3D visualization  for vehicle engineers and designers
    Carmakers are continually trying to produce new and exciting designs which appeal to a wide range of customers. At the same time, they’re having to meet increasingly stringent rules and...
  • Exa PowerFLOW simulation of a Power Generator with and without absorbing materials
    Noise is a duality. On one hand, it can be soothing, inspirational, even emotional, like Beethoven’s 5th Symphony, or the fine-tuned thunderstorm of a Jaguar F-Type R (see Jalopnik article...
  • The Importance of Integrated Design Simulation and Visualization Tools
    Exa's Dr. Paul Stewart discusses how automotive engineering and design studios can communicate through simulation and visualization to realize the full aerodynamic, thermal and acoustic potential...
  • Exa's new acoustics simulation solution, PowerACOUSTICS' FIND, offers vehicle manufacturers a unique way to easily isolate acoustic noise sources. Autoline Daily recently highlighted this novel...
  • Convertibles create a challenge for NVH engineers due to the increased turbulent airflow
    Convertibles made a bit of ‘noise’ at the Los Angeles Auto Show last week, with the unveiling of the Range Rover Evoque Convertible, Volkswagen Beetle Dune and Fiat 124 Spider. You could...
  • Simulation offers the hard numbers, provides exact insight into the cause or "why" certain results occur. Exa Corporation's Dr. Ales Alajbegovic explains how simulation-driven design...
  • It’s been a three and a half year tease from Tesla CEO Elon Musk, but many will say it’s been worth the wait as the Model X was unveiled last night at the company’s...
  • It’s July, and getting hotter every day. Spending time in the car can provide a welcome respite from the soaring temperatures outside. That said, a car’s heating, ventilation and air conditioning (...
  • Exa was able to demonstrate that, by changing the shape of perforations from round to more rectangular, we could kill the unwanted whistling
    Why is my exhaust system noisy? Why isn’t it noisy enough? It doesn’t matter which manufacturer they work for: engineers are always looking to optimize exhaust noises… and...
  •   Companies using cloud technology are accessing software that they previously did not have the bandwidth to support. Teams that are collaborating on common data in the cloud are gaining...