Validation of a Pushbelt Variator Model – Insights into a non-smooth Multibody System
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Beschreibung
Continuously variable transmissions are an ideal solution for modern car concepts.
For the efficient simulation of the whole model the dynamics of its parts, their interactions and the numerical treatment are discussed. New models for the ring dynamics and for the contact between curved sheaves and curved element flanks, an identification method for the element’s longitudinal contact stiffness, a physical based tracking law as well as methods for computing time reduction improve and enhance the system.
The discussion of numerical aspects covers the number of simulated elements, the usage of non-smooth dynamics and a comparison of different ring models. The chapter physical aspects covers parameter uncertainties, especially the contact parameters for geometry, stiffness and friction.
Overall the validation demonstrates the applicability of the model for well identified parameters for stationary and instationary phenomena and its fit - qualitatively as well as quantitatively.
Autor*in
Kilian Grundl
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Pushbelt Variator Model continuously variable transmissions modern car concepts