Avion Issue 12 Spring 2017

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| Issue 12 | Volume 147 | Tuesday, April 25, 2017 | theavion.com |

Students Soar into NASA Competition Final Phase

Claudia Ehringer Lucas Professor of Engineering Fundamentals

Madaline Eitniear and Emily Rickel/The Avion Newspaper

OA-7 Launch to ISS Henry Neiberlien News Editor On Tues. April 18, Cape Canaveral Complex 41 shook and trembled under the power of an Atlas V 401 blasting off towards the International Space Station. The United Launch Alliance Atlas V carried an Orbital ATK Enhanced Cygnus resupply vessel destined for the Unity module of the International Space Station (ISS). This launch is significant as it honors a legendary astronaut and American

hero, first human to orbit the Earth and former US Senator John Glenn. The S.S. John Glenn carried over 7,400lbs of pressurized cargo including food, water, EVA gear, computer equipment, and scientific research equipment. The Cygnus spacecraft arrived at the ISS on April 22. This is the seventh of ten flights to the ISS that Orbital ATK is contracted for and they hope to return to their Antares vehicle for future launches, as the company was forced to contract Atlas V flights after the inci-

dent on Wallops Island in October of 2014. The Cygnus was reeled in using the Station’s Canadarm2 robotic arm and berthed to an open common berthing mechanism. The Cygnus spacecraft will spend several weeks attached to the ISS, then it will be loaded with waste and deorbited. The spacecraft will burn up in the atmosphere on reentry. Orbital’s next ISS mission is scheduled for October aboard an upgraded Antares 230 rocket from Wallops island., VA.

A few weeks ago the Avion ran a story about a team of students that has been excelling in the NASA Revolutionary Aerospace Systems Concepts - Academic Linkage (RASC-AL) competition. This team, comprised of four students from an Introduction to Engineering (EGR101) Honors section, has now moved past the mid-project review stage of the competition. They are now in the final phase of the competition, which is the RASCAL forum in Cocoa Beach from May 31 to June 2. This team is one of just fourteen selected to present at the forum. They are among teams from engineering powerhouses such as MIT, Columbia University, and Virginia Tech, and will present their research to a panel of NASA and industry judges. Each team accepted to this phase of the competition receives a travel stipend to cover the costs of going to the final competition. The Embry-Riddle team is comprised of students Jack Grant, Cheyenne Reed, John Lacey, and Jesus Ferrand, and is advised by Professor Claudia Ehringer Lucas. The team from Embry-Riddle is competing in the "Lightweight Exercise Suite" theme. For this theme, the team had to

design an exercise suite for extended duration space missions with a mass limit of 500 kg and a space limitation of a module of 3 to 5 meters in diameter. Beyond these initial restrictive requirements, the design envelope was further reduced by additional needs of reducing power usage, consideration of vibration mitigation, analysis of health benefits of the proposed systems, and being able to provide the system to NASA by 2025. In the initial stage of the competition, the team developed a high-level concept of a multi-machine exercise suite that would use primarily Commercial Off The Shelf (COTS) technology, modified for the rigors and durations of space missions. Use of COTS parts is considered essential to the team, as it allowed for the use of technology that is already proven, at costs much closer to those observed in mass production, and a definitive timeline for acquisition. However, the initial concept for the exercise suite had the diameter of the proposed design at the maximum of 5 meters in diameter, so for the mid-project report, the team worked to reconfigure their system to achieve the preferred 3meter diameter envelope. The current design iteration includes four different exercise machines –

a treadmill, a stationary bike, a rowing machine, and a modified OYO Fitness DoubleFlex®. The proposal has the stationary bike and rowing machine powering generators, helping to offset the power requirements for the treadmill and health monitoring system that NASA uses to track astronauts during workouts. These machines have been selected to give the astronauts a combination of exercises that will work all the major muscle groups and provide a cardiovascular workout. Each machine's design has been modified to use lightweight, high strength materials, and high durability lubricants have been selected to prevent excessive wear of parts. For the RASC-AL Forum, the team will have to present their concepts three ways – through a written paper, a formal presentation, and a less formal poster session where they will discuss in depth their concepts with conference attendees. The forum includes a tour of the Kennedy Space Center and a formal awards ceremony dinner. This is an exciting opportunity for a team of freshman engineering students and will be a great opportunity for networking. The team is currently hard at work in preparation for this final challenge of the competition.

Photo Courtesy: Daryl Labello From left to right: John Lacey, Cheyenne Reed, faculty advisor Claudia Ehringer Lucas, Jack Grant, and Jesus Ferrand


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