Stefan Hartweg

Stefan Hartweg
German Aerospace Center (DLR) | DLR · Institute of System Dynamics and Control

About

7
Publications
841
Reads
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31
Citations
Citations since 2016
1 Research Item
18 Citations
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20162017201820192020202120220123456
20162017201820192020202120220123456
20162017201820192020202120220123456

Publications

Publications (7)
Article
Full-text available
The introduction of moving loads in the Floating Frame of Reference Formulation is presented. We derive the kinematics and governing equations of motion of a general flexible multibody system and their extension to moving loads. The equivalence of convective effects with Coriolis and centripetal forces is shown. These effects are measured numerical...
Article
A new simulation and analysis environment in Python is introduced. The environment provides a graphical user interface for simulating different model types (currently Functional Mockup Units and Modelica Models), plotting result variables and applying simulation result analysis tools like Fast Fourier Transform. Additionally advanced tools for line...
Conference Paper
A new simulation and analysis environment in Python is introduced. The environment provides a graphical user interface for simulating different model types (currently Functional Mockup Units and Modelica Models), plotting result variables and applying simulation result analysis tools like Fast Fourier Transform. Additionally advanced tools for line...
Conference Paper
Full-text available
In this paper, an approach to solve mechanical problems with moving loads and flexible bodies is presented. Therefore, the multi-disciplinary modeling language Modelica together with the DLR FlexibleBodies Library is utilized. Rather than solving the equations of motion analytically, this approach solves them numer-ically. While large overall motio...
Conference Paper
The object-oriented language Modelica presents a modeling framework to interconnect components from different engineering disciplines such as mechanics, electrics, thermodynamics, control etc. and to set-up multi-domain simulations tasks in one consistent environment. Due to the underlying modeling ideas of Modelica the implementation of flexible b...
Conference Paper
Full-text available
The bending deformation of rotating annular plates and the associated vibration behaviour is important in engineering applications which range from automotive or railway brake systems to discs that form essential components in turbomachinery. In order to extend the capabilities of the DLR FlexibleBodies library for such use cases, a new Modelica...

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