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Shading system design based on model of the bird-of-paradise flower

Date:
October 28, 2013
Source:
University of Stuttgart
Summary:
An innovative folding mechanism has been developed without joints or hinges.

The basis for the Flectofin® folding mechanism is a plastic reinforced with glass fibre that has highly elastic properties and is very malleable. Opening and closing the louvers is linked with bending a rod integrated in the louver through which it turns down up to 90 degrees.
Credit: University of Stuttgart, ITKE

An innovative folding mechanism without joints and hinges: Prof. Dr. Jan Knippers from the Institute of Building Structures and Structural Design (ITKE) at the University of Stuttgart, Prof. Dr. Thomas Speck, Director of the Botanical Gardens at Albert-Ludwigs-University Freiburg, Dr. Markus Milwich from the Institute of Textile Technology and Process Engineering Denkendorf as well as their employees are being presented with the Gips-Schüle Research Prize awarded for the first time for the bionic façade shading system Flectofin® and the further developments based on this. 

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Flectofin® is a changeable construction inspired by nature for architecture: it works like a vertical blind. The direction of the louvers can be changed as required in the case of the infinitely adjustable folding mechanism. However, the researchers have done without wear-prone and high-maintenance joints and hinges. In place of this the elastic deformation is based on the folding mechanism in the blossom of the strelitzias. The flower is pollinated by birds in its home country of South Africa, that settle down on the "perch" formed by the plant made of misshapen petals. Due to the weight of the bird, the petals unfold and the plant releases pollen that the bird transfers to the next blossom.

The basis for the Flectofin® folding mechanism is a plastic reinforced with glass fibre that has highly elastic properties and is very malleable. Opening and closing the louvers is linked with bending a rod integrated in the louver through which it turns down up to 90 degrees. The basic principle can be developed into various versions. Since the folding mechanism works without technical joints or hinges and Flectofin® systems can also be attached to curved facades that are burdensome to shade, the researchers are hoping for an important stimulus for modern architecture. The Flectofin® shading system can be used from detached houses up to large façades measuring up to 20 to 30 metres. The research team was already awarded the "Techtextil Innovation Prize 2011 -- Architecture" for technology by Europe's largest and most important industrial fair for technical textiles as well as the "International Bionic-Award" by the Schauenburg Foundation in 2012.

The Gips-Schüle Foundation was set up in 1965 with the assets of the Schüle family that had founded the first gypsum factory in Stuttgart in 1870. Its purpose is to promote applied, multidisciplinary research and teaching as well as young researchers. By awarding this prize the foundation is honouring interdisciplinary research projects with a high degree of innovative potential and sustainable benefits for society.

The award is to be presented by retired Minister of State Erwin Teufel on 23rd October 2013 in Stuttgart. The Gips-Schüle Foundation is endowing the prize with 40,000 Euros and will be awarded every two years in future.


Story Source:

The above story is based on materials provided by University of Stuttgart. Note: Materials may be edited for content and length.


Cite This Page:

University of Stuttgart. "Shading system design based on model of the bird-of-paradise flower." ScienceDaily. ScienceDaily, 28 October 2013. <www.sciencedaily.com/releases/2013/10/131028114549.htm>.
University of Stuttgart. (2013, October 28). Shading system design based on model of the bird-of-paradise flower. ScienceDaily. Retrieved October 31, 2014 from www.sciencedaily.com/releases/2013/10/131028114549.htm
University of Stuttgart. "Shading system design based on model of the bird-of-paradise flower." ScienceDaily. www.sciencedaily.com/releases/2013/10/131028114549.htm (accessed October 31, 2014).

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