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The Quest for Quiet
Oct 24, 2017
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...
Total Noise Simulation with Exa
Jul 07, 2017
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...
Taking a ride down Champs É-lysées
Sep 21, 2016
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...
Considering light-weighting your brakes? Read this first.
Aug 29, 2016
Brake rotors are a prime target for light-weighting. Why? For starters they are heavy, around 21 lbs per wheel for a large sedan. This mass has a significant rotating inertia which needs to be...
Improving Our Air Quality: Engine Manufacturers Face Increased Regulatory Requirements
Jul 21, 2016
Air quality affects everyone. To continue the trend of already improving air quality in the EU, the limits for particulate matter and NOx will be reduced again by the Stage 5 regulations which start...
Reflections on the end of automotive mirrors
Jul 18, 2016
A report in Automotive News states that Japan has become the first market to allow cameras in place of mirrors. Companies such as Robert Bosch and Japan’s Ichikoh Industries are already...
Time to turn down the volume: how heavy machinery companies can tackle noise pollution before their equipment is even built
Jul 07, 2016
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...
What is the real truth behind portable emissions testing?
Jun 28, 2016
We need a complete rethink about how the automotive industry measures fuel economy. The laboratory tested methods used globally today just aren’t fit for purpose. They’re riddled with...
Future trucks: highly charged and aerodynamic
Jun 12, 2016
A lot has been discussed in the media recently about the next generation of Class 8 tractor designs and how they will seek to improve aero-efficiency – and therefore reduce costs – for...
Time to stop hero-worshipping the wind tunnel
May 02, 2016
The mystique of the wind tunnel as the ultimate place to perfect a car’s aerodynamics is blinding some makers to the superior abilities of digital simulation. Retiring head of design at GM...
The real-world problem with emissions tests
Apr 12, 2016
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...
Fuel Economy : Keep it Real
Mar 28, 2016
The disparity between published test figures and real-world fuel economy has long been a topic of discussion, and in Europe, the average gap between the two has reportedly risen to 40%. The current...
Absorbing away the cost of noise
Mar 11, 2016
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...
How to Meet Fuel Economy Targets: OEMs and Suppliers Find Success Collaborating and Optimizing Designs Using Simulation
Jan 14, 2016
Exa’s Doug Hatfield discusses how commercial truck and automotive OEMs collaborate with their suppliers to optimize vehicle designs using simulation. With truck fleets seeking ever-...
Physical Testing Cannot Provide Engineers the "Why"
Oct 30, 2015
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...
Engineers Exhaust Valuable Time and Resources on a Noisy Challenge
Jun 03, 2015
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...
Will Car Makers Fail The WLTP Emissions Test?
Mar 04, 2015
Emission regulations are changing in a way that is going to have huge impact on car manufacturers. The Worldwide harmonized Light vehicle Test Procedures (WLTP) are scheduled to replace the current...