Under the lead of the Tübingen-based Max Planck Institute for Biological Cybernetics (MPI), Fraunhofer IPA has co-developed a new cable-driven parallel robot that is the first one capable of transporting humans while at the same time setting new standards in terms of workspace, acceleration and payload for a motion simulator. The scientists have thus succeeded in decisively advancing a technology previously used for automation solutions in the field of intralogistics. On 16 September 2015, MPI will unveil the motion simulator to the public at the Driving Simulation Conference & Exhibition (DSC2015) in Tübingen.
To date, cable robots have been used in production environments, where they meet high requirements. The systems surpass conventional industrial robots in size and pay- load by between one and two orders of magnitude. The end effector can be freely moved with high accuracy by up to eight cables and winches. Based on this technology and in a world first, the idea of a cable-driven motion simulator has now been realized under the lead of Professor Heinrich Bülthoff from MPI for Biological Cybernetics.
In the cable-driven simulator, the motion of the simulator cabin is controlled by eight unsupported steel cables attached to winches. In contrast to conventional motion simulators, the use of cables makes it possible to reduce the moving mass and to scale the workspace to any required size. A total drive power of 348 kW allows the cabin to accelerate at 1.5 times gravitational acceleration along freely programmable paths inside a 5 x 8 x 5 m³ workspace.
In addition, the cables can be reattached in under an hour to enable the simulator to be adapted to different cabins and thus used for a range of scenarios. During the two-year collaboration between both Institutes, Philipp Miermeister, a member of Fraunhofer IPA’s Cable Robotics working group headed by Junior Professor Andreas Pott, has contributed much know-how to driving forward the design and realization of the simulator.
The scientists have not only implemented the control algorithms, but also developed a lightweight yet rugged carbon fibre cabin capable of withstanding the high dynamic loads during operation. Made entirely from carbon fibre tubes, the cabin frame maximizes the usable cabin volume with a diameter of 260 cm for projection surfaces and cockpit instrumentation. This allows it to be used for highquality video projections and realistic operator interfaces.
At the same time, the light 80 kg frame is capable of accelerating at high speed while also withstanding high forces, because, in operation, the cables pull on the outer structure with up to 1.5 tonnes. Its large workspace and dynamic capabilities make the simulator suitable for a wide spectrum of VR (virtual reality) applications, including driving/flight simulation as well as investigation of basic perception processes in humans.
“This simulator offers us entirely new possibilities for studying motion perception with possible applications in neurological research into balance disorders,” says Professor Bülthoff, who is a long-time perception researcher.
There is a history of collaboration between the Fraunhofer and Max Planck Institutes.
“With the cable-driven simulator, the scientists from both Institutes have once again demonstrated how the combination of basic research and industry-oriented technology development can lead to innovative products,” underlines Professor Thomas Bauernhansl, Institute Director at Fraunhofer IPA.
Maiden journey of the cable-driven simulator
During a welcoming reception at the Driving Simulation Conference & Exhibition (DSC2015), the scientists will unveil the cable robot to a wider audience. One of Europe’s leading conferences in the field of driving simulation, DSC is being held in Germany for the first time. Taking part alongside MPI are the Mercedes-Benz Sindelfingen plant of Daimler AG as well as the Research Institute of Automotive Engineering and Vehicle Engines (FKFS) from the University of Stuttgart. Coupled with an exhibition, the conference attracts experts from research and industry. Journalists are welcome to attend the reception at 7 p.m. on 16 September; those wishing to attend are requested to register: email@example.com
Information in brief
Conference: Driving Simulation Conference & Exhibition (DSC2015)
When: 16 to 18 September 2015
Where: Tübinger Kupferbau
Organizer: Paolo Pretto, Max Planck Institute for Biological Cybernetics, in cooperation with Renault and France’s Grande École Arts et Métiers ParisTech
Press event: As part of DSC2015, a reception will be held at 7 p.m. on 16 September, at which the simulators of MPI for Biological Cybernetics will be available for viewing. If interested, please register giving your name, contact details and medium by email to: pressekyb@ tuebingen.mpg.de
Philipp Miermeister | Phone +49 711 970-1114 | firstname.lastname@example.org | Fraunhofer Institute for Manufacturing Engineering and Automation IPA | www.ipa.fraunhofer.de
Jörg Walz | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA
Lego-like wall produces acoustic holograms
17.10.2016 | Duke University
New evidence on terrestrial and oceanic responses to climate change over last millennium
11.10.2016 | University of Granada
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
09.12.2016 | Life Sciences
09.12.2016 | Ecology, The Environment and Conservation
09.12.2016 | Health and Medicine