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Simulation Software Creates A Smooth Transition Between Design And Simulation

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Simulation Software Creates A Smooth Transition Between Design And Simulation
Simulation Software Creates A Smooth Transition Between Design And Simulation

Video: Simulation Software Creates A Smooth Transition Between Design And Simulation

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Video: Simulation Made Easy -- ANSYS Mechanical 2023, February
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The Fraunhofer Institute for Computer Graphics Research IGD in Darmstadt has developed a simulation software that quickly checks the feasibility of individual design requests. This offers customers and manufacturers new opportunities for customized mass production.

Christian Altenhofen from the Interactive Engineering Technologies department at Fraunhofer IGD describes the added value as follows: “We create a smooth transition between design and simulation. Quickly checking whether an individual design can be implemented is often an unsolved problem in industry today. Most CAD data only describe the outer surface and do not contain the volumetric information necessary for simulations. Generating this later is very prone to errors, usually requires manual rework and costs the industry a lot of money.”

Validated scope for design

The Fraunhofer researchers' software enables customers and manufacturers to automatically generate the simulation necessary for material testing. This quickly clarifies whether design suggestions that have been created on the computer can also be implemented in reality. If this is not the case, the technology suggests how the product can be made more stable or better. "This means that the customer still has a lot of scope for individual design," says Altenhofen.

Simulate the internal structure of an object

The software's algorithms use the mathematical concept of subdivision volumes. Building on this, the researchers use the finite element method to determine physically based simulation models. Specifically, this means that you calculate from the effects of force, such as B. Gravity and weight of the object, its internal tension. Depending on the size and distribution of the tension, it can be assessed whether an object is static or not.

"With subdivision volume, a consistent virtual model of the internal structure of the object is created," the Fraunhofer expert describes the technology. The process goes beyond pure CAD information: These only describe surfaces of three-dimensional objects, but do not allow any conclusions to be drawn about their interior. “In our approach, the volumetric information is carried along with the surface information that is important for creating the design. That means that the necessary information for the simulation is available to customers and manufacturers right from the design phase,”explains Altenhofen.

Showcase at the booth

For the Hanover Fair 2017, the researchers have developed a prototype of their simulation solution that conveys the idea for possible applications and possible future developments: They manufacture individual holders for plastic espresso cups. Visitors to the stand can design their own holder via an interactive user interface. If the idea cannot be implemented statically or cannot withstand the later physical loads, he receives instructions via an interactive menu which parameters he can change to prevent this. “Additive manufacturing is a very clear example of how our technology can be used. In principle, however, our approach can be used for many different manufacturing processes and different materials,”says Altenhofen. (mz)

Hannover Messe 2017: Hall 7, Stand D11

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