New test rig components for faster development and validation

Prototype of a mount with tunable stiffness. Photo: Fraunhofer LBF/Raapke

What is the optimal combination of real and virtual world? The research team from Darmstadt developed tunable components and a mechanical hardware-in-the-loop interface.

Tunable components allow continuous adjustment of mechanical characteristics. For example, mounts with tunable stiffness enable testing of a test specimen under different boundary conditions or the implementation of tunable vibration absorbers.

If tunable rubber mounts are used as a development tool, with stiffness and damping adjustable independently of each other, it is possible to forgo the first bearing prototypes. This makes it possible to provide the mount manufacturer with optimized specifications at an early stage of development.

Mechanical hardware-in-the-loop interfaces can be used to simulate more complex boundary conditions in experiments, especially in the field of NVH development. The interface behaves equivalent to a underlying numerical model in a wide frequency range.

For example, an adaptive shock absorber can be tested for different combinations of top mount and chassis without carring out any modifications to the testing bench.

»The transfer of numerical simulation methods into the physical world of testing makes it possible for development processes to be drastically accelerated and costs to be reduced. Furthermore, our technologies and test rig components offer new possibilities for validation of numerical simulation models. Models can be validated for different operating points with less effort«, says Jan Hansmann, research associate and project manager at the Fraunhofer LBF.

Next, the research team from Darmstadt wants to work on the series-production implementation, which requires close cooperation with industrial partners.

Jan Hansmann, jan.hansmann@lbf.fraunhofer.de

http://www.lbf-jahresbericht.de/en/services/project-overview/vibration-technolog… Fuzzy control systems, Pareto optimization, genetic algorithms
http://www.lbf-jahresbericht.de/en/services/project-overview/reliability/structu… hardware-in-the-loop testing environment

Media Contact

Anke Zeidler-Finsel Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF

Alle Nachrichten aus der Kategorie: Power and Electrical Engineering

This topic covers issues related to energy generation, conversion, transportation and consumption and how the industry is addressing the challenge of energy efficiency in general.

innovations-report provides in-depth and informative reports and articles on subjects ranging from wind energy, fuel cell technology, solar energy, geothermal energy, petroleum, gas, nuclear engineering, alternative energy and energy efficiency to fusion, hydrogen and superconductor technologies.

Zurück zur Startseite

Kommentare (0)

Schreib Kommentar

Neueste Beiträge

Who stole the light?

Self-induced ultrafast demagnetization limits the amount of light diffracted from magnetic samples at soft x-ray energies. Free electron X-ray lasers deliver intense ultrashort pulses of x-rays, which can be used…

Could breadfruit be the next superfood?

UBC researchers say yes Breadfruit is sustainable, environmentally friendly and a high-production crop. A fruit used for centuries in countries around the world is getting the nutritional thumbs-up from a…

New calculation refines comparison of matter with antimatter

Theorists publish improved prediction for the tiny difference in kaon decays observed by experiments. -An international collaboration of theoretical physicists–including scientists from the U.S. Department of Energy’s (DOE) Brookhaven National…

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close