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unilogo University of Stuttgart
Institute of Engineering and Computational Mechanics

Interactive Pendulum for the German Pavilion
at the World Exhibition EXPO 2010 Shanghai China


Movie of the EXPO-Pendulum in the German Pavilion in Shanghai

The German Pavilion at the EXPO 2010 in Shanghai

Testsetup in Stuttgart, summer 2009

Testsetup in Stuttgart, summer 2009

During Mai and October 2010 visitors to the German Pavilion at the World Exhibition Expo 2010 in Shanghai encountered - among other exhibits and projects from industry, research, and development - a giant pendulum. The pendulum is the centerpiece of the so-called energy source of the pavilion, which falls under the motto “balancity – city in balance“ and presents solutions made in Germany for urban life in the future. An interactive sphere with a diameter of 3 meters is equipped with nearly 400,000 LED lamps and is attached to a thin bar. An integrated actuator in the top of the pavilion excites the pendulum, which weighs about 1.2t and has a length of 5.6 meters, to perform swinging and circular motions. The actuator is only allowed to make slight horizontal movements, so that the observer gets the impression that the pendulum moves on its own. Visitors can induce the sphere to swing by giving acoustic signals and can even influence the direction of the swing of the pendulum. The Institute of Engineering and Computational Mechanics, the Institute for Control Engineering of Machine Tools and Manufacturing Units and the Institute of Machine Components, in cooperation with the event agency Milla und Partner, have developed a specific actuation concept, that ensures, that the pendulum moves reliably in the desired direction and decelerates safely. While the sphere swings and circulates, images and films from Germany are projected onto it, which visualizes the Expo main theme: “Better city, better life“. The German Pavilion has been commissioned by the Federal Ministry of Economics and Technology, organization and operation is conducted by Koelnmesse International GmbH.

In the press (all in German)