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  • Writer's pictureNATALIA SOUSA

Siemens Expands Aerospace and E-mobility Simulation Capability with Simcenter Mechanical Solutions.

Siemens Digital Industries Software has announced updates in the latest release of Simcenter™ software for mechanical simulation. The new updates can simplify electrification engineering projects, assist new aircraft in meeting safety margins, simplify durability testing across many industries, and much more.

“Addressing complex engineering challenges such as developing products that are more powerful, yet greener, lighter yet stronger requires a fully-integrated CAE solution,” said Jean-Claude Ercolanelli, Senior Vice President, Simulation and Test Solutions, Siemens Digital Industries Software. “The latest release of Simcenter offers a host of powerful enhancements to help engineers meet those challenges efficiently and significantly faster than ever before, whether that is getting tire contact simulations solved 45% quicker or reducing airframe structure preprocessing by up to 80%.

The highlights in this release are applicable across all industries and workflows and bring new functionality to the Simcenter family of products. Highlights include:

For those exploring Additive Manufacturing (AM), build process simulation is a must, mainly when dealing with metals-based powder-bed fusion production methods. However, the complex nature of these processes usually requires the AM engineer to collaborate with an experienced CAE expert. The latest release of Siemens’ Simcenter™ 3D software introduces a simplified application for the simulation of the powder-bed fusion (PBF) build process that is easy to use for engineers without in-depth CAE expertise.

A robust voxel-based mesh in the background can quickly model and simulate the PBF build process, allowing engineers to understand whether a part will build successfully. More detailed analysis can then be performed by CAE experts using Simcenter 3D, thus enhancing collaboration.

Following the introduction of the ability to launch simulations on remote HPC systems directly from within Simcenter 3D, engineers can now review simulation results from the Remote Simulation interface. This helps engineers determine if simulation studies ran correctly before transferring large results files to a local workstation for in-depth evaluation.

It is now possible to model rigid surfaces and porous materials in a free-field simulation. This means that seats and other absorbing surfaces can be modelled as heavy air or an accurate porous material, while the rest of the cabin is modelled with regular air fluid elements.

Electrification is a major trend across the Automotive industry and the development of new Electric Vehicle (EV) powertrains tend to be broken into silos for e-motor design, transmission analysis, NVH and acoustics. Simcenter mechanical simulation tools can help automakers break these silos by helping critical load, design and model information flow easily between these disciplines for EV powertrain development. Beyond EV development, additional new capabilities in this release improve the simulation of other automotive applications from NVH, to tires, to windshield wiper performance. Highlights include:

The new contact pattern display in Simcenter 3D helps analyze wiper contact patterns. By modeling the wiper as a flexible body combined with contact elements, the new contact pattern display will show easy to interpret results of the wiper forces across the windshield, allowing the user to learn how consistently or inconsistently the forces are distributed and if the wiper design is working as expected, without the need for costly and time-consuming physical testing.

Finally, the latest release of Siemens’ Simcenter™ Tire software has an updated road contact algorithm to reduce the large amount of road data exchange required to build the high-fidelity tire models required for driving simulators and Hardware-in-the-Loop set-ups. This means that computational performance is increased by up to 45% enabling the use of high-fidelity tire models in real-time applications.

The stiffness of thin structural panels in airframe structures can change depending on whether the panels are in compression or tension. The new Tension Only Quad element can convert the shells into shear panels if panels go into compression.

For the Aerospace industry, new capabilities reduce the number of models needed to simulate the behavior of thin aircraft skins and perform margin of safety calculations more quickly than ever before. In addition to the new improved airframe applications, Simcenter can help engineers better understand rocket launch dynamics by simulating the liquid sloshing in fuel tanks. Highlights include:

New standard calculation templates have been added to the margin of safety analysis tools within Simcenter 3D. These new templates automatically prefill all the inputs based on a set of rules so the engineer just needs to select the geometry to apply calculation to – removing the traditional reliance of custom script development and the associated maintenance costs.

A new capability in Simcenter™ Nastran software helps airframe engineers with thin skinned airframe structures that have different stiffness behavior depending on the load case; tension (membrane) vs. compression (shear). Today, engineers typically create multiple models and properties to account for all the different loading conditions. The new tension-only-quad will change from membrane behavior to shear behavior automatically so only a single model is needed to represent an airframe structure - reducing simulation preprocessing time by up to 80%.

While not isolated to aerospace and rocket applications, liquid fuel sloshing dynamics in storage tanks can pose a challenge to guidance systems. In this latest release of Simcenter Nastran, the new incompressible fluid model helps to predict slosh frequencies and hydro-elastic modes. In other industries, it can also be used for evaluating sloshing in cargo, ballast or fuel tanks of large ships​, automotive vehicles, rail cars and much more.

Engineers can now simulate the complex multi-disciplinary magnetostriction effects that cause transformer noise. In addition, you can use these forces directly for noise and vibration assessment without leaving Simcenter 3D

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