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2015-06-15
Technical Paper
2015-01-2300
Robert Fiedler, Chadwyck Musser, Petr Cuchý
This paper addresses the NVH design of a light rail vehicle whose maximum allowable interior SPL levels at certain speeds are regulated and may vary between countries, states, and cities. The objective of this study was to predict sound pressure levels (SPL) at several interior locations across a wide range of frequencies and estimate if the current design configuration will meet the noise level limits. Statistical Energy Analysis (SEA) was used to predict interior SPL and to understand and rank the various noise contribution paths and give a better understanding of the physics of transmission and what types of design changes are most effective to reduce the overall interior SPL to meet targets. A typical light rail vehicle is composed of a frame-like structure covered by lightweight panels and with interior panels that are increasingly made from composites, sandwich, laminated, or honeycomb materials or extruded panels.
2015-05-19
Article
Lockheed Martin is currently under contract to build eight GPS III satellites at its GPS III Processing Facility near Denver, a factory specifically designed to streamline satellite production.
2015-05-19
Article
Prior to first flight, more than 34,000 hours of lab testing had been completed for Gulfstream's clean-sheet wide-cabin aircraft.
2015-05-18
Article
Using the benchmark Alpha mixed-materials architecture that it pioneered on Cadillac ATS, GM takes over 200 lb out of the admittedly overweight 2015 Camaro and adds its first turbocharged four-cylinder powertrain.
2015-05-18
Article
At the end of April, Boeing and CFM International initiated flight testing of the LEAP-1B engine on a modified 747 flying testbed at GE Aviation Flight Test Operations.
2015-05-14
Article
To charge an electric car, you typically plug it in to a power source. An alternative to plugging in is called inductive charging. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at Audi's new Q7 e-tron plug-in hybrid with wireless charging technology.
2015-05-08
Article
Fiat-Chrysler CEO Sergio Marchionne believes the existing auto industry needs to be consolidated. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at Marchionne's claim that the auto industry is becoming too costly for all but the biggest players.
2015-05-08
Article
The HR-V subcompact SUV mixes the Fit platform with Civic and CR-V powertrain systems.
2015-05-08
WIP Standard
J2365
This SAE Recommended Practice applies to both Original Equipment Manufacturer (OEM) and aftermarket route-guidance and navigation system functions for passenger vehicles. This recommended practice provides a method for calculating the time required to complete navigation system-related tasks. These estimates may be used as an aid to assess the safety and usability of alternative navigation and route guidance system interfaces to assist in their design. This document does not consider voice-activated controls, voice output from the navigation system, communication between the driver and others, or passenger operation.
2015-05-05
Article
At Intermat, LiuGong announced that it was in a 60-day countdown before its new Global Research and Development Center opens in June at Liuzhou, also home to the company's global headquarters.
2015-04-30
Article
The SVAutobiography has a two-tone paint scheme and uprated supercharged version of 5.0-L V8.
2015-04-24
Article
Boeing is in the midst of several months of flights with its ecoDemonstrator 757 in a first-round effort to evaluate new technologies in 2015 that are expected to reduce environmental effects on natural laminar flow as a way to improve aerodynamic efficiency while reducing noise and carbon emissions.
2015-04-24
Article
The engine bay is an essential component of the AgustaWestland AW609 tilt rotor nacelle, since it determines the performance of the engine and assures safe maneuvers for every flight condition.
2015-04-24
Article
The six-wheeled Curiosity rover exploring Mars' surface gets its instructions from a lead driver working inside the NASA Jet Propulsion Laboratory in Pasadena, CA. Matt Heverly, Curiosity’s lead driver, spoke to 2015 SAE World Congress attendees gathered Wednesday afternoon inside the Tech Hub on the main show floor.
2015-04-23
Event
Intelligent Transportation Systems (ITS) includes smart vehicles, smart roads and infrastructure, and wired and wireless communications to link them together. This session will provide insights and progress reports on the latest ITS research, development, and deployment around the world. Time to collision estimations, embedded processor control, adaptive cruise control and image recognition along with discussion on the management of safety and safety systems.
2015-04-23
Event
This session presents papers by leading experts in the field of Intelligent Vehicle Technologies, such as: vehicle communications and networks, driver drowsiness and driving pattern detection, sensors and GPS, vehicle and chassis control and autonomous vehicles, route prediction, head-up displays and power transmission for electric vehicles.
2015-04-21
Article
The 2016 seven-passenger crossover redesign reflects Mitsubishi's new design language and its powertrain features a new CVT with ratio spread of 7.0 for improved performance and fuel economy.
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