UGA Columns July 13, 2015

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UGA’s institutional spokesperson steps down after nearly 30 years CAMPUS NEWS

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The University of Georgia Georgia Museum of Art celebrating Mexico in July film series

Vol. 43, No. 1

July 13, 2015

www.columns.uga.edu

schupska@uga.edu

Mike Wooten

College of Engineering researchers Ben Davis, left, and Stephen Higgins are developing a model to assess the fittings called bellows joints in NASA’s new Space Launch System.

Rocket men

UGA engineers help NASA fine-tune new Space Launch System mwooten@uga.edu

Researchers at the UGA College of Engineering are helping NASA determine if a key rocket component can withstand the rigors of the next generation of space flight. The parts in question, bellows expansion joints, serve several functions in rocket propulsion systems including as connectors between fuel and oxidizer lines and the rocket’s engines. While bellows joints have been used on rockets for decades, NASA wants to make sure a flowinduced vibration phenomenon in the joints doesn’t pose a risk for its new Space Launch System. The world’s most powerful rocket, the SLS will launch astronauts into a new era of deep-space exploration, including missions to an asteroid and eventually to Mars.

According to the space agency, four RS-25 engines, previously known as Space Shuttle Main Engines, will muscle the SLS into space on each of its missions. “Bellows joints are specialty pipe fittings that have convolutes, or ridges, that give them the appearance of an old fashioned fireplace bellows or an accordion,” said Ben Davis, an assistant professor in the UGA College of Engineering and a former NASA researcher. “The design of the bellows joint allows it to flex as the engine gimbals, or adjusts, to control the direction of thrust.” The joints also absorb thermal expansions and contractions in piping systems and isolate vibrations from one section of pipe to another, Davis said. Unfortunately, the corrugated design that makes them so useful also makes the joints susceptible to flow-induced vibrations.

Davis, who specializes in research related to structural and flow-induced vibration, and Stephen Higgins, a graduate research assistant, are using a $126,000 grant from NASA to assess the structural integrity of bellows joints that are part of the RS-25’s design. “The liquid fuel and oxygen flowing through the joints, coupled with the vibration of the joints themselves can create eddies, called vortices, at the inner tips of the bellows convolutes,” Davis said. “These vortices interact with the motion of the bellows to create an unwanted high-amplitude vibration that can lead to structural fatigue and potentially catastrophic failure of the bellows joint.” NASA currently uses a 30-yearold computer model based on empirical data to determine the See NASA on page 4

COLLEGE OF AGRICULTURAL AND ENVIRONMENTAL SCIENCES

A record-breaking number of contributors—63,784 at final count—led UGA to its best fundraising year in history. After all contributions were tallied for the year on June 30, the university received nearly $144.2 million in new gifts and commitments for the 2015 fiscal year, a 14 percent increase over last year’s record total of $126.4 million. “Once again, the University of Georgia community has joined together to provide an unprecedented level of financial support to advance the academic mission of this great institution,” said UGA President Jere W. Morehead. “I am grateful to our generous and loyal alumni and friends for their significant contributions; to the UGA Foundation board of trustees,

to the development team and to the senior leadership across our schools, colleges and other units for their hard work and dedication; and to our outstanding faculty, staff and students, who continue to make UGA the very special place that it is.” The 63,784 donors represent a 12 percent increase over fiscal year 2014, in which 56,897 donors contributed to the institution. “Having established an all-time fundraising record just one year ago—and to exceed that total by a significant margin just 12 months later—is an incredible tribute to our donors who have stepped up and answered the call to support the university,” said Kelly Kerner, vice president for the Division of Development and Alumni Relations. “Words are inadequate to

See FUNDRAISING on page 4

UNIVERSITY SYSTEM OF GEORGIA

Brooks Keel named president of Georgia Regents University The Board of Regents of the University System of Georgia named Brooks Keel president of Georgia Regents University in Augusta. Keel will assume his new position on July 20. “Brooks Keel brings a proven track record as a strong leader within our university system,” said Board of Regents Chair Neil Pruitt. “We are excited about the future of Georgia Regents University and the positive momentum Brooks will bring for the benefit of our students and our partnership with the Augusta community.” “The selection of Brooks Keel reflects the comprehensive representation the GRU presidential search committee had from our Georgia Regents University stakeholders and

the Augusta community,” said Chancellor Hank Huckaby. “We appreciate Regent Jim Hull, a lifelong Augusta resident, leading the Brooks Keel search process, and we thank the members of the search committee for their commitment.” “I had the great fortune to earn both my undergraduate and graduate degrees in Augusta, and I’m eternally grateful for the fantastic opportunities in research, scholarship leadership they have brought to my life,”

See PRESIDENT on page 4

Officials mark continued commitment to turfgrass industry with research and education facilities

FACILITIES MANAGEMENT DIVISION Energy-saving efforts save UGA $175,000 during heat wave

By Stephanie Schupska

By Matt Chambers

schupska@uga.edu

More than 200 people gathered June 24 for a groundbreaking ceremony that brought new turfgrass research and education facilities on UGA’s campuses in Griffin, Tifton and Athens one step closer to completion. Local, state, industry and UGA representatives met on the UGA Griffin campus to officially mark the university’s continued commitment to an industry that provides

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Record-breaking year: UGA fundraising hits ‘unprecedented level’ By Stephanie Schupska

By Mike Wooten

UGA GUIDE

87,000 full- and part-time jobs throughout the state. “Turfgrass is one of Georgia’s largest agricultural commodities, and the future of the turfgrass industry—now valued at nearly $8 billion—is very bright,” said UGA President Jere W. Morehead.“At the heart of the industry’s growth and development lies UGA’s College of Agricultural and Environmental Sciences. Our turfgrass scientists conduct leading research, provide training to industry professionals and prepare students to be leaders

in turfgrass management.” During the 2014 legislative session, Gov. Nathan Deal and the Georgia General Assembly approved $11.5 million for a statewide turfgrass facilities enhancement project. Outdated facilities on UGA’s campuses will be replaced with labs, greenhouses, classrooms and office spaces designed to keep the university at the forefront of turf breeding programs around the nation. “In business, you’re only as

See FACILITIES on page 4

mattdc@uga.edu

Through energy conservation efforts and being mindful of their work environment, members of the campus community saved UGA $175,000 and enough electricity to power 12 average American homes for a year. Last month, as temperatures rose closer to triple digits, the Facilities Management Division sent out a request for UGA faculty, staff and students to be more conscious

of their energy usage on campus. David Spradley, energy services director, said that energy is purchased on an hourly basis using real-time pricing, which can lead to cost spikes during summer. “Usually I only see 15-20 days (of cost spikes) a whole summer,” Spradley said. “But we’ve had 10 days before summer even started.” As a result of the heat wave, an Archnews email was sent June 18 asking campus members to find ways to save energy. Spradley

See ENERGY on page 4


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