Fraunhofer-Publica
The Fraunhofer-Publica has been successfully documenting the research results of the Fraunhofer-Gesellschaft for over 30 years. The platform enables the collaborative linking of research-relevant objects and disseminates within the international scientific community.
The Fraunhofer-Publica thus fulfils its responsibility to promote the transfer of knowledge and know-how to industry and society.
Categories
Research outputs
As an application-oriented research organisation, Fraunhofer aims to conduct highly innovative and solution-oriented research - for the benefit of society and to strengthen the German and European economy.
Projects
Fraunhofer is tackling the current challenges facing industry head on. By pooling their expertise and involving industrial partners at an early stage, the Fraunhofer Institutes involved in the projects aim to turn original scientific ideas into marketable products as quickly as possible.
Researchers
Scientific achievement and practical relevance are not opposites - at Fraunhofer they are mutually dependent. Thanks to the close organisational links between Fraunhofer Institutes and universities, science at Fraunhofer is conducted at an internationally first-class level.
Institutes
The Fraunhofer-Gesellschaft is the leading organisation for applied research in Europe. Institutes and research facilities work under its umbrella at various locations throughout Germany.
Recent Additions
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PublicationUsing Discrete Element Method for Simulating Robotic Structures with Particle Jamming Characteristics( 2024)In this paper, we use the Discrete Element Method (DEM) to model the switchable stiffness behavior of components for robotic structures. These components are built-up with an elastic cover and a granular medium. By means of vacuum pressure, the jamming of the particles, and therefore the stiffness be-havior, can be adjusted. Aim of the model is to predict the structural behavior of such components considering size scaling effects. The model is compared to ex-perimental results of a bending test. Main challenges of using the DEM for such a configuration is the mapping of the elastic cover and the load application. The load application can be realized by coupling with a multibody dynamics system using the Functional Mock-up Interface. For mapping the cover, the elasticity has to be adjusted because of numerical discrepancies. The comparison with the ex-perimental results shows that the influence of the cover elasticity is negligibly small. The differences between simulation and experiment can be explained by the particle shape. To save computing time, sphere shapes are considered for the model, but the real particle shapes are sharp-edged polyhedrons. With the model the influence of parameters such as dimensions, filling degree and vacuum pres-sure can be determined.
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Most viewed
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PublicationBarkhausen-Effect and Eddy Current Testing for the Characterization of the Microstructure and Residual Stress States with Local Resolution( 1997)The IZFP has developed a microscope based on micromagnetic and eddy-current techniques. By using miniaturized inductive transducers with some tenths of a µm slit width, speciments are scanned in down to one µm increments. Concering the micromagnetic techniques, the magnetic Barkhausen noise is measured, which is mainly sensitive to microstructure and residual stress states. The applied eddy-current technqiue is sensitive to microscopic defects, local changes in permeability and conductivity.
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PublicationComputer-aided cutting-edge research on history for home edutainment and exploratory learning( 2012)Webbles are the most recent form of IntelligentPad. Webbles are objects in a browser window that allow for direct manipulation by drag and drop. One may pick up any Webble and move it over any other one for operational combination. The new Webble is plugged into the previous one and data between them flow through predefined slots. Human users may freely reconfigure the slot connections of Webbles as necessary. Within the authors' adaptive interactive dynamic atlas project, historians have the historical data literally at their fingertips. Historical data have some visual appearance on the screen and may be directly manipulated by actions such as drag and drop. The professional research interface is accessible via any Web browser and, thus, allows for participation of a wide audience. Contemporary technologies are bringing science to private homes where families may playfully explore history in manifold ways.
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