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Traditional Japanese Origami Being Used For NASA Solar Panels

Jet Propulsion Laboratory researchers have engineered NASA solar panels that are based on the Japanese paper-folding art, origami. These panels are light, foldable, and easily deployable. The idea of origami solar cells, while not completely new, is capturing considerable press attention.

Brian Trease, a mechanical engineer at  NASA’s Jet Propulsion Laboratory in Pasadena, California, recalls origami dolls from his younger years. Eventually, he got curious about this Japanese paper-folding art when he was in Japan, during high school. He would fold wrappers of cheese burgers into cranes and loved to discover various origami techniques from library books.

Trease thinks about how the principles of the Japanese art form he once loved doing for fun could be used for space bound solar panels. “This is a unique crossover of art, culture, and technology,” said Trease.

NASA origami

To materialize the idea of building spacecraft components that are portable for space travel, NASA is looking at origami folds. Trease and researchers at Brigham Young University (BYU) in Provo, Utah, are working on this project.

Though some simple folded panels are already in use in space missions, Trease and his fellow researchers are aiming at developing more intricately folded origami solar panels that are light, compact, and easily deployable. With this, NASA’s biggest challenge of transporting bulky space objects gets a simple solution — folding them.

“Researchers say origami could be useful one day in utilizing space solar power for Earth-based purposes,” said Trease. “Imagine an orbiting power plant that wirelessly beams power down to Earth using microwaves. Sending the solar arrays up to space would be easy, because they could all be folded and packed into a single rocket launch, with no astronaut assembly required.”

Shannon Zirbel, a doctoral student in mechanical engineering at BYU, is also working on these ideas, with Trease as her research collaborator, and being supported by the NASA Technology Research Fellowship. Robert Lang, an origami expert, and Larry Howell, a BYU Professor, also collaborated with Trease and Zirbel for this project.

They developed a solar array prototype which is 1 centimetre thick and can fold up to 8.9 feet (2.7 metres) in diametre. When unfolded the complete structure stretches up to 82 feet (25 metres) across. This 1/20th scale prototype expands to a deployed diameter of 4.1 feet (1.25 metres).

The JPL researchers call the material used for these origami solar panels as Hannaflex. The prototype starts out in a flower shaped form and folds out into a hexagonal shape.

NASA trease-prototype-origami-solar-panel-array

NASA engineer Brian Trease holds the prototype of the origami-inspired solar panel arrays. Credit: NASA/JPL-Caltech

According to Trease, “Different materials needed to be stress tested and they needed to find a way to quickly unfold the panel. The artistic shape of the panel is truly beneficial in the space flight technology. There’s a lot of artistic expertise in understanding the folds, but it’s heavily backed up by math and engineering.”

JPL says in its release;

“One technique (in a combination of different folds) that has been used for an origami-inspired solar array is called a Miura fold. This well-known origami fold was invented by Japanese astrophysicist Koryo Miura. When you open the structure, it appears to be divided evenly into a checkerboard of parallelograms. It looks like a blooming flower that expands into a large flat circular surface”

Trease added that “origami has been the subject of serious mathematical analysis only within the last 40 years. There is growing interest in integrating the concepts of origami with modern technologies.”

He envisions that the foldable solar arrays could be used in conjunction with small satellites called CubeSats. And he says that the origami concept could be used to create  origami antennas.

Zirbel, says in her recent TedX video (below): “Perhaps we could design a machine that had a fifty or hundred year life time (with the power supplied by these large foldable origami solar panels in space,”

Image via NASA

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is a writer, producer, and director. Meyers was editor and site director of Green Building Elements, a contributing writer for CleanTechnica, and is founder of Green Streets MediaTrain, a communications connection and eLearning hub. As an independent producer, he's been involved in the development, production and distribution of television and distance learning programs for both the education industry and corporate sector. He also is an avid gardener and loves sustainable innovation.


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