Paulmichl, I., Adam, C., & Adam, D. (2019). Simulation of the stick-slip motion of an oscillatory roller. Proceedings in Applied Mathematics and Mechanics, 19(1), Article e201900245. https://doi.org/10.1002/pamm.201900245
E208-01 - Forschungsbereich Strukturdynamik und Risikobewertung von Tragwerken E220-02 - Forschungsbereich Grundbau, Boden- und Felsmechanik
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Journal:
Proceedings in Applied Mathematics and Mechanics
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Date (published):
2019
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Number of Pages:
2
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Publisher:
Wiley
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Peer reviewed:
No
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Keywords:
FEM; Management, Monitoring, Policy and Law; soil dynamics; Geography, Planning and Development; stick-slip motion; Oscillatory roller
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Abstract:
A three degrees-of-freedom (3DOF) lumped parameter model (LPM) of the oscillatory roller-soil interaction system is presented that captures the stick-slip motion of the drum during near-surface compaction of non-cohesive soils. The deformed soil below the drum is predefined as a rigid curved asymmetric guiding track (i.e. the compaction process in the soil is not simulated), supported by a vertical and horizontal Kelvin-Voigt element, to predict also the vertical drum accelerations as observed in situ. The solution of this model, found by switching between the sets of highly nonlinear ODEs for the stick and slip phase, is compared with recorded and numerically simulated (Finite Element model) drum responses.
