Mechanical engineering student helps NASA scientists design Martian helicopter
First came Aelita: Queen of Mars, a silent film from 1924 about a Russian engineer who moves to the Red Planet and falls in love with its leader. In 2015’s The Martian, Matt Damon fertilizes alien soil with human feces in order to survive his own mission to outer space. Now, in a new Netflix drama called Away, an international team of astronauts leave their families behind for a three-year mission to Mars. During a layover on the moon, their commander, played by Hilary Swank, tells the world: “We will come together now in pursuit of a dream that was once thought impossible. And if we can do this, we can do anything.”
The world has long fantasized about humans setting foot on this arid, rocky, mountainous orb. But the dream has remained just that — a science-fiction fantasy reserved for comic books and Hollywood blockbusters. That may be changing soon.
According to NASA, if technology developments go to plan, a real-life, crewed mission to the Red Planet could be underway as soon as the 2030s. Among those who have advanced the cause? Allysa Tuano, a University of Delaware student who collaborated with NASA scientists on a recent project.
“It is one thing to work with really smart people,” said Tuano, a mechanical engineering major. “It is another thing to work alongside such innovative minds, people who push themselves in ways that are hard to comprehend. Let’s go to Mars? That takes vision and an ability to see the bigger picture, no matter how wild. It is something I hope to develop as I grow up.”
On a Thursday in July, NASA launched a car-sized rover that is set to land on Mars in February — it takes a while to travel nearly 300 million miles. While this planetary exploration device captured all the headlines, it was not the only marvel of engineering to rocket off the face of the Earth that day. Attached to this rover’s belly is an experiment — a four-pound helicopter called Ingenuity.
Complete with carbon-fiber blades and the ability to charge itself via a solar array, this spider-like contraption, if all goes well, will be the first to test powered, sustained flight in another planet’s atmosphere. The device will lay groundwork for the deployment of a new-and-improved helicopter in Martian airspace, one with higher-tech capabilities. Specifically, scientists are hoping a future iteration of the rotorcraft will one day collect data and capture high-definition images not achievable via satellite or a ground-bound rover. In other words, it will conduct reconnaissance for a human mission to Mars.
Before Ingenuity even took off, NASA scientists were already working on this sequel — a larger, next-generation helicopter that will test data-collection capabilities. In the fall of 2019, as an intern at NASA’s AMES Research Center in Mountain View, California, Tuano created conceptual designs for this project.
“I was expecting to do data processing,” she said. “Now I look back and I think: Wow. They really had an intern developing design concepts. What an amazing opportunity.”
During a leave of absence from her regular studies, Tuano spent her days at the research center doing CAD — computer-aided design work — with a software program called SolidWorks, which allows for 3-D modeling. With this tool, she conducted structural analysis to improve upon the helicopter designs of previous interns, and she came up with her own renderings. (Her classes at UD on solid mechanics and computer-aided design were, she said, “definitely very helpful.”) Tuano’s job was to focus primarily on shape — for instance, she developed options for folding the helicopter up so that it fits inside a lander, or the protective shell that will cushion an impact on Mars.
There are numerous challenges to designing such a rotorcraft for the Red Planet. Because the Martian atmosphere is so thin, the helicopter must be lightweight (around 44 pounds is the target, all scientific instruments included). But it must also be powerful — blades have to spin much faster than they do on Earth. Additionally, the device has to withstand temperatures that dip to minus 130-degrees Fahrenheit, and it needs to be largely autonomous, since radio signals can take 21 minutes to travel all the way from Earth, ruling out any type of joystick operation.
“I learned a great deal about the person I want to become,” Tuano said about facing these challenges. “In college, failure is really terrifying, but with this kind of research, you’re encouraged to try out many different things, because failure is a lesson you can learn from. I have realized how much I want to access and embrace that mentality.”
She isn’t the only Blue Hen to have a formative experience at NASA. In the summer of 2019, then-junior Showvik Haque also interned at the AMES Research Center — he worked on a project concerning the world’s largest wind tunnel, used to test aircraft with wingspans up to 100 feet. At the time, Google was building a headquarters directly across from this 80-by-120-foot space, and engineers feared this nearby structure would mess with the tunnel’s functionality. Using CFD, or computational fluid-dynamics software, Haque studied whether or not this would be the case. What he and the team discovered? There would likely be an effect, but one that can be calibrated for.
“I never thought I would get accepted into an internship as sought after as NASA,” said Haque, a 2020 graduate of UD who now works as an engineer for the Boeing Company in Ridley Park, Pennsylvania. “But I want to encourage students to shed their imposter syndrome. Anything is possible if you put yourself out there, if you challenge yourself and if you make yourself open to the best opportunities possible.”
Both former interns agree: Their hard work was worth total immersion in the spirit of imagination and hope that is so central to the NASA mission. This is a place that represents what Haque called “science in its purest form” — it is not about pushing boundaries for the sake of turning a profit but, rather, for the joy of exploration and the promise of discovery.
“One of my biggest regrets is feeling in the past like I don’t have enough experience or like I’m not good enough to approach these sorts of things,” said Tuano, who has since embarked on another high-profile internship doing product development work with Apple. “Even if you don’t feel like you have a shot at something, you should give it a shot. It will truly surprise you what you can accomplish.”
Or, she added, what you’re capable of helping humanity accomplish. Who knows? The next movie or bingeable Netflix show about achieving the impossible on Mars?
It might just be a documentary.
Delaware Space Grant Consortium
These internships were funded by the Delaware Space Grant Consortium, a NASA program administered by UD. The consortium provides tuition assistance and supports educational opportunities for NASA hopefuls in the areas of science, technology, engineering, mathematics and geography. For more information, please visit delspace.org.
Photo by Kathy F. Atkinson and courtesy of NASA, Allysa Tuano and Showvik Haque | November 02, 2020|