Non-Linear Rotor-Dynamics Modelling using Co-Simulation
2009 (English)In: Proceedings of the 8. Internationale Tagung Schwingungen in rotierenden MaschinenSIRM 2009, 2009Conference paper (Other academic)
This paper describes a rotor-dynamics application, a grinding spindle arrangement, that contains several non-linear components, e.g., two ball bearings supporting the spindles shaft and a control system determining the rotation of the shaft. To be able to study the different parts in detail they should be modelled in specialised simulation tools, i.e., model control systems in Simulink and multibody systems in MSC.ADAMS.However, to understand the system as a whole it is necessary to investigate all parts simultaneously. This is especially true for transient (dynamic) simulation models with several interdependent parts. One solution for a more complete and accurate system analysis is to couple different simulation models into one coherent simulation, also called a co-simulation. This also allows the reuse of existing simulation models and preserves the investment in these models.
The grinding spindle arrangement has successfully been modelled and simulated using a general framework for co-simulation and metamodelling. Four simulation models have been connected by means of a meta-model, that contains an MSC.ADAMS spindle model, two BEAST ball bearings fixing the shaft in the housing, and a Simulink driver that controls the rotation of the shaft. Rotor-dynamics effects, such as, grinding-wheel vibrations and stiffness are presented to verify the results of the simulation.
Place, publisher, year, edition, pages
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-60301OAI: oai:DiVA.org:liu-60301DiVA: diva2:356112
8. Internationale Tagung Schwingungen in rotierenden Maschinen, Technical university, February 23-25, Technical University, Vienna