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RF & Microwave Electronics

Everyday Life, Improved by Light: GRYPHON’s Photonic Discoveries

GRYPHON will leverage recent developments in nonlinear photonics and photonic-electronic integration to develop microwave sources with noise performance that meets or exceeds that of the best discrete oscillator modules. Read on to learn more about the endeavor.

Briefs

Propulsion

New Research on Noise Reduction for Next Generation Aircraft Engines

A study published in Journal of Fluid Mechanics, reveals for the first time how noise is generated and propagated from these engines, technically known as boundary layer ingesting (BLI) ducted fans.

Articles

Mechanical & Fluid Systems

Engineering at the New NVH Frontier

The complex science of analyzing and abating noise, vibration, and harshness has entered a “new frontier” as the industry transitions to electrified vehicles, experts in the NVH field tell SAE Media....

News

Test & Measurement

Turning the Vehicle into a Giant Microphone

When an emergency vehicle is approaching but its blaring siren isn’t heard by nearby motorists, all are put at risk. Engineers at Harman International have developed novel sensor technology that...

News

Mechanical & Fluid Systems

SAE International Extends Call for Abstracts, Seeks Submissions for AeroTech Conference

Engineering Events staff at SAE International in Warrendale, Pennsylvania, have extended the call for abstracts through September 21 for the...

Articles

Design

Vibration Testing NASA’s X-57 Maxwell Electric Aircraft

In place of the usual gasoline-powered motors, the X-57 has two all-electric motors powered by traction batteries.

Articles

Manufacturing & Prototyping

EVs Drive NVH Material Innovations

The definition of a ‘quiet’ vehicle, as determined by the occupants’ ears, is changing radically, as electric motors replace the internal-combustion engine. And electric vehicles are changing the...

News

Photonics/Optics

Electrification Forces Fresh Perspectives on Vehicle NVH

The quietness of EVs is, for many, a compelling selling point. But vehicles becoming inherently quieter overall hasn’t translated into making the job of noise abatement any easier...

News

Software

Expanding the ‘Bubble’ of Cabin Acoustics

Noise cancellation has been a viable technology for many years, used on board turboprop aircraft to counter engine noise and familiar to consumers when applied to headphones to reduce...

News

Test & Measurement

All-New Wind Tunnel Lets Honda Air It Out

Acknowledging the twin priorities of aerodynamic and NVH optimization in the increasingly electrified passenger-vehicle future, Honda in late March inaugurated its first full-scale wind tunnel in...

Articles

Test & Measurement

Keeping Pace with In-Vehicle Data Speed

Next-generation advanced driver-assistance systems (ADAS) require camera and radar systems with increasingly high resolution. That means more speed and higher bandwidth for networks, switches and the...

News

Software

Industry Invited to Participate in AeroTech Aerospace and Defense Technical Program

SAE International is inviting global participation in its AeroTech® aerospace and defense technology conference and exhibition, which is for the first time...

Articles

Automotive

An Immersive Solution for Thermally Safer EV Batteries

An R&D project indirectly leads to potentially greater power density, EV range, and battery life.

News

Power

Modern Approaches to Electric Vehicle Noise and Vibration

Often what comes to mind when discussing electric vehicles are range, charging infrastructure, fast charging, battery costs, etc. Often overlooked are the electric vehicle’s noice...

News

Design

NVH Simulation Meets Realism

Vehicle development is amidst three concurrent revolutions – electrification, autonomy and the shift in product design and engineering to more up-front simulation. Any one of those would be a challenge for...

Articles

Materials

Metamaterials R&D Targets NVH Abatement

Acoustics engineers have a broad variety of materials from which to choose for reducing noise, vibration and harshness (NVH) in vehicles. But their selection often comes with a measurable downside:...

News

Test & Measurement

Alliance Platform Elevates 2022 Mitsubishi Outlander

Ten years is an eternity in terms of automotive product cycles, especially in a segment as hot and crowded as C/D sport utility. For Mitsubishi Motors North America (MMNA), waiting for...

Articles

RF & Microwave Electronics

A Comprehensive Way to Use Bonding to Improve RF Performance of Low Noise Amplifiers

Is RF engineering a form of black magic? Learn about the challenges in developing a low noise amplifier (LNA) for the aerospace market.

News

Design

Nissan’s 2021 Rogue Is a COVID Beater

Nissan staff truly pulled out the stops to get the all-new 2021 Rogue into the market during the global pandemic. Rogue is the company’s best-selling product in North America, by far – a...

Articles

RF & Microwave Electronics

Cryogenic-Capable Isolators Improve the Performance of Millimeter-Wave Systems by Lowering Noise Levels

Find isolators that operate optimally under cryogenic conditions.

News

Automotive

What We’re Driving: 2020 Infiniti QX80

Body-on-frame luxury SUVs are a curious thing. It’s difficult to imagine a customer in the market for an SUV that approaches a six-figure price also desiring the burly characteristics that come...

News

Energy

Latest NVH Simulation Tools Are Ultimate EV Buzz Killers

Noise, Vibration and Harshness, the engineer’s old nemeses, are among the new paradigms that electrification brings to vehicle development. The industry’s success in mitigating...

Original Equipment

Test & Measurement

JLG Develops Self-Leveling Boom Lift

What started as a scale-model prototype shown at Bauma 2016 to explore the viability of a lift with a “smart” suspension has become reality for JLG Industries. At ConExpo-Con/Agg 2020, the...

Briefs

Defense

Green’s Function Extraction from Atmospheric Acoustic Propagation

Understanding what affects acoustic waves propagating in the atmosphere is important for a variety of military applications.

Technology Report

Test & Measurement

GKN Spreads Premium Propshaft Tech to Quiet Pickup Cabins

It may seem a long way in engineering and NVH terms from premium European cars such as Audi’s A5 and A7 to light duty trucks, but GKN Automotive has bridged that gap with its...

News

Green Design & Manufacturing

JCB Prepared to Meet EU Stage V Emissions

JCB is preparing to offer Stage V compliant engines across its equipment lines, with updates to its own engine range and changes to supplier models. Group director of engines Alan Tolley said that...

Application Briefs

Electronics & Computers

Video Graphics Modules

WOLF Advanced TechnologyStouffville, Ontario, Canada905-852-1163https://wolfadvancedtechnology.com WOLF Advanced Technology (“WOLF”) recently announced that NASA has chosen two WOLF video graphics modules to take part...

News

Manufacturing & Prototyping

Bye Aerospace’s Sun Flyer Is Now the “EFlyer”

In an effort to more accurately represent the aircraft – which will no longer feature wing-mounted solar panels as a standard option – Denver-based Bye Aerospace is renaming its...

News

Manned Systems

Streamlined HMIs Do More with Less

The phrase “less is more” has been a major part of human-machine interface (HMI) designs for several years as developers traded multiple knobs and buttons for cleaner input techniques. However, the...