For instance, if a child puts their hand out the window to wave to a friend, the window must stop moving immediately or there could be serious consequences: Tiny fingers can easily get jammed, or the window's mechanism may be damaged.
For the first time, the Functional DMU project has enabled Fraunhofer researchers to create a virtual product that can simulate the complex interaction between electrical and mechanical components – such as those used for power windows and convertible rooftop systems.
While computer-supported test models have become part of everyday production activities, not all process chain components can be simulated. "The Digital Mock-Up (DMU) is a virtual model that represents a product's structure and geometry. DMU is today’s standard in virtual product development," says Dr. André Stork of the Fraunhofer Institute for Computer Graphics (IGD) in Darmstadt.
Until now, DMU and the associated software tools have only taken product geometry into account. "However, a growing number of the mechatronic components being used today are still not fully represented in virtual test models, although this is precisely what manufacturers urgently need. Discussions with industry partners have shown that these functionalities are what companies want most," Stork points out in explaining the project's background.
"With the help of various software packages, Functional DMU can simulate a mechatronic product's software-related components as well as its electronic and mechanical components. We import the individual components into a complete model. Once this has been done, we can quickly determine whether the components work well together, or whether there are safety issues such as windows that are too thick and heavy, or an engine that is too weak," the specialist says. Close cooperation between mechanics, electronics and software development is particularly important. In addition to the work of IGD researchers, experts from the Design Automation Division at the Fraunhofer Institute for Integrated Circuits IIS, the Fraunhofer Institute for Open Communication Systems FOKUS and the Fraunhofer Institute for Structural Durability and System Reliability LBF have also contributed to the project.
Together, they have developed a Functional DMU framework that can integrate the mechatronic properties of individual components into the simulation, and can also evaluate them. The framework combines a variety of different commercial simulators, such as SimPack, Matlab/Simulink and Dymola. Here, it is particularly important that the behavior of individual components be visualized in real time. There are now demonstrators that show how Functional DMU works. One of these is the virtual power window, which will be on display at the joint Fraunhofer booth at the Hannover Messe (Hall 17, Booth D60). The next project on the scientists' agenda is the simulation of a steering test rig. Here, again, mechanical, electrical and software components work interactively.
Monika Weiner | alfa
Three Autonomous Mini Buses for Karlsruhe
14.05.2019 | FZI Forschungszentrum Informatik
A Jetsons future? Assessing the role of flying cars in sustainable mobility
10.04.2019 | University of Michigan
Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.
Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...
Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.
The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...
Discovery by Brazilian and US researchers could change the classification of two species, which appear more akin to jellyfish than was thought.
The tube anemone Isarachnanthus nocturnus is only 15 cm long but has the largest mitochondrial genome of any animal sequenced to date, with 80,923 base pairs....
Researchers at Chalmers University of Technology, Sweden, have discovered a completely new way of capturing, amplifying and linking light to matter at the nanolevel. Using a tiny box, built from stacked atomically thin material, they have succeeded in creating a type of feedback loop in which light and matter become one. The discovery, which was recently published in Nature Nanotechnology, opens up new possibilities in the world of nanophotonics.
Photonics is concerned with various means of using light. Fibre-optic communication is an example of photonics, as is the technology behind photodetectors and...
Fraunhofer IZM is joining the EUROPRACTICE IC Service platform. Together, the partners are making fan-out wafer level packaging (FOWLP) for electronic devices available and affordable even in small batches – and thus of interest to research institutes, universities, and SMEs. Costs can be significantly reduced by up to ten customers implementing individual fan-out wafer level packaging for their ICs or other components on a multi-project wafer. The target group includes any organization that does not produce in large quantities, but requires prototypes.
Research always means trying things out and daring to do new things. Research institutes, universities, and SMEs do not produce in large batches, but rather...
29.04.2019 | Event News
17.04.2019 | Event News
15.04.2019 | Event News
14.06.2019 | Information Technology
14.06.2019 | Materials Sciences
14.06.2019 | Medical Engineering