​​​​​​​​​​​​​​During the MBS Tech Days 2021, Robert Buchmann from the Universität der Bundeswehr, Institute for Mechanics held a presentation titled "Virtual Proving Ground Testing of MAN Commercial Vehicles for Durability Analysis with Validation and Identification of Dominating Mode Shapes for Structural Optimization".

In his presentation, Robert talks about how customers and legislation in the transportation sector demand the development of disruptive commercial vehicle concepts to include new electrical drivetrains and batteries. For an early analysis of the structural durability of commercial vehicles, a virtual prototype was used. A virtual full vehicle test on digitized test tracks was implemented and validated for the durability analysis of bus frame structures within a research project. In this presentation, the simulation process, with emphasis on the flexible multibody simulation model and validation with measurements results, is shown. Furthermore, based on the modal contributions to the stress history, the approach for determining dominating mode shapes is described, and an example for a critical location is presented.

Robert Buchmann studied Mechanical Engineering at the Technical University of Munich (TUM) and graduated (M.Sc.) in 2018. After his studies, he joined the Institute of Mechanics of Professor Lion at the Universität der Bundeswehr in Munich as a Ph.D. candidate with a research project in cooperation with MAN Truck & Bus SE. The aim of the project was the entire virtual vehicle proving ground testing of busses for durability analysis. 

Therefore, to analyze the durability of the frame structure, a multidisciplinary simulation process with a virtual prototype of the vehicle driving over digitized test tracks has been implemented.

Here you can the slides of the presentation Robert held during the event.

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