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Broge, Jean L.
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Churning toward stronger, more uniform aluminum casts

SAE Truck & Off-Highway Engineering: February 2017

Jean L. Broge
  • Magazine Article
  • 17TOFHP02_10
Published 2017-02-01 by SAE International in United States

Macrosegregation is the uneven distribution of alloying elements within a solidified aluminum part, creating, for example, copper-poor regions. This is most likely to occur in the center of a casting, where it remains hidden until the casting is reprocessed for another use such as rolling a thick slab into a flat sheet. These unbalanced structures can form on a scale from several fractions of an inch to several yards and they can lead to cracking, shearing, or other mechanical failure of the material.

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Lockheed Martin LM-100J starts taking (a similar) shape

MOBILITY ENGINEERING: June 2016

Jean L. Broge
  • Magazine Feature Article
  • 16MEIP06_24
Published 2016-06-01 by SAE International in United States

Wing production for the first Lockheed Martin LM-100J commercial multi-purpose freighter has begun in Marietta, GA, which is also home to the C-130J Super Hercules final assembly line. Other structural parts are in production at the Aeronautics sites in Meridian, MS, and Clarksburg, WV, facilities. The LM-100J is expected to make its first flight in 2017, then enter into an FAA certification phase.

Ground testing begins on the GE9X

MOBILITY ENGINEERING: June 2016

Jean L. Broge
  • Magazine Feature Article
  • 16MEIP06_08
Published 2016-06-01 by SAE International in United States

In mid April, ground testing began on the first full GE9X development engine at GE Aviation's Peebles Testing Operation in Ohio. The GE9X engine will power Boeing's new 777X aircraft. According to Bill Millhaem, General Manager of the GE90/GE9X engine programs at GE Aviation, “The ground testing will generate data on the full engine system and aerodynamic performance, mechanical verification, and aero thermal system validation.”

Airbus brings four dimensions to Airspace

MOBILITY ENGINEERING: June 2016

Jean L. Broge
  • Magazine Feature Article
  • 16MEIP06_13
Published 2016-06-01 by SAE International in United States

As Airbus looks to launch new-engine option (neo) aircraft, it has announced it is also launching a new cabin brand it calls “Airspace by Airbus.” In essence, Airbus is hoping that its Airspace will enhance the passenger experience just as the new engines will enhance the airlines' bottom line due to efficiency increases.

Innovative wing structure contributes to Clean Sky next-gen aircraft

MOBILITY ENGINEERING: June 2016

Jean L. Broge
  • Magazine Feature Article
  • 16MEIP06_16
Published 2016-06-01 by SAE International in United States

GKN Aerospace announced earlier this year that it has delivered wing components as part of a major research program to test and measure the benefits of natural laminar flow (NLF) designs during trials on the wing of a flight test aircraft. The Breakthrough Laminar Aircraft Demonstrator in Europe (BLADE) project is part of the Clean Sky Smart Fixed Wing Aircraft (SFWA) program, an extensive, 50% European Union-funded, multi-partner activity aimed at lowering fuel consumption and emissions by reducing drag on next-generation.

Origami goes high-tech for potential military applications

SAE Off-Highway Engineering: April 8, 2016

Jean L. Broge
  • Magazine Feature Article
  • 16OFHP04_07
Published 2016-04-01 by SAE International in United States

Researchers from the Georgia Institute of Technology, the University of Illinois at Urbana-Champaign, and the University of Tokyo have taken a keen interest in origami, which they believe may soon provide a foundation for antennas that can reconfigure themselves to operate at different frequencies, microfluidic devices whose properties can change in operation, and possibly heating and air-conditioning ductwork that could adjust to demand.

UCLA researchers develop new strong and lightweight metal nanocomposite

MOBILITY ENGINEERING: March 2016

Jean L. Broge
  • Magazine Feature Article
  • 16MEIP03_16
Published 2016-03-01 by SAE International in United States

A team led by researchers from the UCLA Henry Samueli School of Engineering and Applied Science has created a super-strong yet light structural metal with a very high specific strength and modulus, or stiffness-to-weight ratio. The new metal is composed of magnesium infused with a dense and even dispersal of ceramic silicon carbide nanoparticles. It could be used to make lighter airplanes, spacecraft, and cars, helping to improve fuel efficiency.

Aurora Flight Sciences, Stratasys debut at Dubai jet-powered, 3D printed UAV

MOBILITY ENGINEERING: March 2016

Jean L. Broge
  • Magazine Feature Article
  • 16MEIP03_20
Published 2016-03-01 by SAE International in United States

Stratasys and Aurora Flight Sciences unveiled at the Dubai Airshow an aircraft built using lightweight Stratasys materials to achieve speeds in excess of 150 mph. The team leveraged 3D printing for 80% of the design and manufacture of the demonstration UAV, which has a 9-ft wingspan and a mass of just only 33 lb.

GE's clean-sheet turboprop engine to launch with Textron Aviation

MOBILITY ENGINEERING: March 2016

Jean L. Broge
  • Magazine Feature Article
  • 16MEIP03_08
Published 2016-03-01 by SAE International in United States

Textron Aviation has opted for GE Aviation's all-new turboprop engine to power its single engine turboprop (SETP). The 1300 shaft horsepower (SHP)-rated turboprop engine will be the first entry in GE's new family of turboprop engines designed specifically for business and general aviation aircraft in the 850- to 1600-SHP range.

Gleaner upgrades cabins, drives on S9 Series combines

SAE Off-Highway Engineering: February 5, 2016

Jean L. Broge
  • Magazine Feature Article
  • 16OFHP02_10
Published 2016-02-01 by SAE International in United States

AGCO's transverse rotary combine brand, Gleaner, will be debuting for 2016 its new S9 Series combines, which includes three models-the S96, S97, and S98-to meet the needs of growers seeking class 6, 7, and 8 machines. Gleaner says the S9 addresses the needs farmers have identified for harvesting technology-capacity, grain quality, low loss levels, reduced compaction, and serviceability.