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Energy

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
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...

Briefs
Design

Anti-Phase Noise Suppression Rotor Technologies

Acoustic optimization for anti-phase asymmetric rotor.

Technology Report
Power

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...

Technology Report
Test & Measurement

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...

Articles
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...

Briefs
Medical

Quiet Gears Improve Patient Comfort and Imaging Quality in Medical Equipment

The polymer gear material reduces noise and absorbs shock and vibration.

Features
Wearables

Assistive Audio Signal Stimulation Offers Relief for Parkinson’s Patients

Early indicators suggest that there are significant mood improvements that assist in the quality of life for the patients testing the devices.

Briefs
Propulsion

Meringue-Like Material Reduces Aircraft Noise

The low-density, graphene-based aerogel could make aircraft as quiet as a hairdryer.

Articles
Electronics & Computers

Products of Tomorrow

Metamaterial printing, high-efficiency solar cells, and a noise-reduction material.

Briefs
Materials

Built-In Vibration Control to Soundproof Spaces

Vibration-absorbing resonators could better soundproof walls and make vehicles more streamlined.

News
Electronics & Computers

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...

NASA Spinoff
Sensors/Data Acquisition

Microphone Detects Turbulence Hundreds of Miles Away

A NASA microphone that detects unseen air turbulence is lofted to high heights aboard a stratospheric glider.

Articles
Test & Measurement

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
Automotive

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...

Briefs
Wearables

Smartphone App Hears Ear Infections in Children

The app detects fluid behind the eardrum using a piece of paper and a smartphone’s microphone and speaker.

Briefs
Test & Measurement

Extreme Low-Frequency Hydrophone

Applications include monitoring of earthquakes and tsunamis as well as manmade infrasonic sources such as boats.

News
Software

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
Automotive

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...

Briefs
Medical

Ultrasonic Projector

A chip-based technology generates sound profiles with high resolution and intensity to make ultrasound therapy more effective and easier.

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.

Briefs
Aerospace

High-Fidelity Sonic Boom Propagation Tool

The sBOOMTraj software tool predicts and mitigates ground noise generated during supersonic flight.

5 Ws
Sensors/Data Acquisition

5 Ws of the SoundWatch

The smartwatch app identifies sounds that a user is interested in and sends a friendly buzz and information about the sound.

Road Ready
Nanotechnology

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...

Briefs
Aerospace

Multirotor Aircraft Noise Reduction

NASA's phase-locked rotors reduce noise.

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
Mechanical & Fluid Systems

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...

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...